# Difference Between Locust and Cicada

Author: Nex Virox Team (Editorial Team)  
Reviewed by: Varshal Nirbhavane  
Published: 2026-08-31  
Last updated: 2026-08-31  
Canonical: https://nexvirox.com/difference-between/difference-between-locust-and-cicada/

**Quick answer:** The main difference between Locust and Cicada is that locusts are a destructive swarm-forming phase of short-horned grasshoppers, while cicadas are true bugs known for their loud mating calls. Locust is a grasshopper species that swarms and devastates crops, while Cicada is a plant-feeding insect with prominent sound-producing organs.

<h2>Difference Between Locust and Cicada: Comparison Table</h2>
<table>
<thead>
<tr><th>Aspect</th><th>Locust</th><th>Cicada</th></tr>
</thead>
<tbody>
<tr><td><strong>Definition</strong></td><td>A short-horned grasshopper that enters a swarming phase under specific environmental triggers.</td><td>A true bug (hemipteran) known for its loud acoustic mating calls produced by tymbals.</td></tr>
<tr><td><strong>Taxonomic Order</strong></td><td>Belongs to Orthoptera, family Acrididae, sharing ancestry with grasshoppers.</td><td>Belongs to Hemiptera, superfamily Cicadoidea, related to leafhoppers and aphids.</td></tr>
<tr><td><strong>Primary Behavior</strong></td><td>Forms dense migratory bands and swarms that can travel hundreds of kilometers.</td><td>Remains solitary; males aggregate in trees solely for chorus-based mate attraction.</td></tr>
<tr><td><strong>Life Cycle Length</strong></td><td>Completes 2-5 generations per year in tropical regions with no multi-year dormancy.</td><td>Periodical species emerge after 13 or 17 years underground; annual species emerge yearly.</td></tr>
<tr><td><strong>Mouthpart Type</strong></td><td>Chewing mandibles that consume entire leaf blades, stems, and seed heads.</td><td>Piercing-sucking stylets that tap xylem fluid without removing leaf tissue.</td></tr>
<tr><td><strong>Sound Production</strong></td><td>Produces faint rustling via wing-leg friction during flight, not for communication.</td><td>Males generate 90-100 decibel calls using vibrating tymbal membranes on the abdomen.</td></tr>
<tr><td><strong>Dietary Preference</strong></td><td>Feeds on grasses, cereal crops, and broadleaf plants, causing complete defoliation.</td><td>Nymphs feed on root xylem; adults sip tree sap, rarely causing economic damage.</td></tr>
<tr><td><strong>Swarming Trigger</strong></td><td>Rainfall after drought boosts serotonin, transforming solitary individuals into gregarious hoppers.</td><td>No swarming behavior exists; mass emergences are synchronized by soil temperature thresholds.</td></tr>
<tr><td><strong>Geographic Range</strong></td><td>Found across Africa, Middle East, Asia, and Australia, with desert locusts spanning 60 countries.</td><td>Inhabits every continent except Antarctica; periodical species restricted to eastern North America.</td></tr>
<tr><td><strong>Body Length</strong></td><td>Adults measure 2-5 centimeters depending on species and phase density.</td><td>Adults range 2-5 centimeters, with wingspans up to 12 centimeters in large species.</td></tr>
<tr><td><strong>Wing Structure</strong></td><td>Long, narrow forewings adapted for sustained flight over hundreds of kilometers.</td><td>Membranous, translucent forewings held roof-like over the body at rest.</td></tr>
<tr><td><strong>Antennae Length</strong></td><td>Short antennae, typically shorter than the body, a key orthopteran trait.</td><td>Short bristle-like antennae, often shorter than the head, with three segments.</td></tr>
<tr><td><strong>Nymph Habitat</strong></td><td>Nymphs (hoppers) march on soil surfaces, consuming vegetation in dense bands.</td><td>Nymphs burrow underground for years, feeding on root xylem at depths of 30-60 centimeters.</td></tr>
<tr><td><strong>Predator Defense</strong></td><td>Relies on camouflage, rapid jumping, and massive swarm numbers to overwhelm predators.</td><td>Uses predator satiation via synchronized emergences; also employs startling wing-flash displays.</td></tr>
<tr><td><strong>Economic Impact</strong></td><td>Desert locust swarms destroy crops worth millions, threatening food security in affected regions.</td><td>Minimal crop damage; occasional orchard injury from egg-laying slits on twigs.</td></tr>
<tr><td><strong>Human Consumption</strong></td><td>Harvested and fried in Africa and Middle East; rich in protein at 50-60% dry weight.</td><td>Eaten in China, Japan, and Mexico; often boiled or roasted for snacks.</td></tr>
<tr><td><strong>Cultural Symbolism</strong></td><td>Represents plague and destruction in biblical texts and ancient Egyptian records.</td><td>Symbolizes rebirth and immortality in Chinese culture; featured in Greek mythology.</td></tr>
<tr><td><strong>Mating Strategy</strong></td><td>Males pursue females via visual cues and short-range pheromone release.</td><td>Males form acoustic choruses; females select mates based on call frequency and duration.</td></tr>
<tr><td><strong>Egg Deposition</strong></td><td>Females lay egg pods in soil, 30-100 eggs per pod, at 5-10 centimeter depths.</td><td>Females insert 200-600 eggs into tree twigs using a saw-like ovipositor.</td></tr>
<tr><td><strong>Diapause Mechanism</strong></td><td>No true diapause; development continues year-round in warm climates with wet-dry cycles.</td><td>Periodical nymphs exhibit obligate multi-year diapause synchronized to prime-number cycles.</td></tr>
<tr><td><strong>Mobility Speed</strong></td><td>Adults fly at 15-20 kilometers per hour, covering 100-150 kilometers per day.</td><td>Adults fly short distances, typically less than 1 kilometer from emergence site.</td></tr>
<tr><td><strong>Population Density</strong></td><td>Swarm densities reach 50-80 million adults per square kilometer in outbreak zones.</td><td>Emergence densities hit 1.5 million per hectare in brood years, but no swarm formation.</td></tr>
<tr><td><strong>Color Variation</strong></td><td>Solitary phase is green or brown; gregarious phase shows yellow, black, and red markings.</td><td>Species vary from green to brown or black; periodical species have red eyes and black bodies.</td></tr>
<tr><td><strong>Foreleg Structure</strong></td><td>Standard walking legs with no raptorial modification; hind legs enlarged for jumping.</td><td>All six legs are similar walking legs; front legs not adapted for grasping prey.</td></tr>
<tr><td><strong>Auditory Organs</strong></td><td>Hears via tympanal organs located on the first abdominal segment.</td><td>Possesses tympanal organs on the ventral thorax near the rear legs.</td></tr>
<tr><td><strong>Flight Pattern</strong></td><td>Forms cohesive, wind-assisted swarms that shift direction with prevailing air currents.</td><td>Makes weak, buzzing flights; typically stays within the same tree canopy.</td></tr>
<tr><td><strong>Seasonal Activity</strong></td><td>Active year-round in tropics; breeding peaks after seasonal rains.</td><td>Adults emerge in late spring or early summer; nymphs active underground year-round.</td></tr>
<tr><td><strong>Ecological Role</strong></td><td>Acts as a primary consumer that can alter grassland composition through heavy grazing.</td><td>Functions as a keystone nutrient cycler; emergence carcasses fertilize soil with nitrogen.</td></tr>
<tr><td><strong>Control Methods</strong></td><td>Managed via aerial insecticide sprays, biopesticides like Metarhizium, and early warning systems.</td><td>No control needed; infestations are harmless, though netting protects young saplings.</td></tr>
<tr><td><strong>Best-Fit Scenario</strong></td><td>Choose locust study for agricultural pest management and swarm-prediction modeling.</td><td>Choose cicada study for acoustic communication research and periodicity evolution.</td></tr>
</tbody>
</table>

<h2>What Is Locust?</h2>
<p>A locust is a short-horned grasshopper in the family Acrididae that undergoes a behavioral transformation from solitary to swarming phases. It exists as a plant-eating insect that forms massive migratory bands, destroying crops across Africa, Asia, and the Middle East when population densities spike.</p>
<h3>Definition of Locust</h3>
<p>A locust is a polyphagous, herbivorous insect belonging to the order Orthoptera, characterized by density-dependent phenotypic plasticity, where crowded conditions trigger gregarious morphs with distinct coloration, longer wings, and heightened metabolic rates, enabling synchronized swarm formation and long-distance dispersal across agricultural landscapes.</p>
<h3>Key Characteristics of Locust</h3>
<table>
<thead>
<tr><th>Characteristic</th><th>What It Means in Practice</th></tr>
</thead>
<tbody>
<tr><td>Phase polymorphism</td><td>Solitary and gregarious forms look different; crowding changes body color, wing length, and behavior within the same species.</td></tr>
<tr><td>Swarm formation</td><td>High population density triggers marching hopper bands and flying adult swarms that can cover hundreds of square kilometers.</td></tr>
<tr><td>Migratory capacity</td><td>Adults travel up to 150 kilometers per day using prevailing winds, crossing international borders and spreading crop damage.</td></tr>
<tr><td>Rapid reproduction</td><td>Females lay 300 to 400 eggs per pod in warm moist soil; multiple generations per year accelerate population explosions.</td></tr>
<tr><td>Polyphagous feeding</td><td>They consume over 400 plant species, including cereal grains, legumes, vegetables, and forage grasses, causing total defoliation.</td></tr>
<tr><td>Gregarious behavior</td><td>Crowded nymphs march in cohesive bands, aligning movement direction and increasing feeding intensity compared to solitary individuals.</td></tr>
<tr><td>Morphological plasticity</td><td>Gregarious adults have longer wings, narrower pronotums, and brighter yellow-brown coloration versus the green solitary form.</td></tr>
<tr><td>Environmental triggers</td><td>Rainfall and green vegetation following drought create ideal breeding conditions that initiate the transformation to swarming phase.</td></tr>
<tr><td>Economic impact</td><td>A single square kilometer swarm contains 40 to 80 million adults that consume the same food volume as 35,000 people daily.</td></tr>
<tr><td>Control difficulty</td><td>Swarm mobility across vast, often remote terrains complicates pesticide application; aerial spraying is the primary intervention method.</td></tr>
</tbody>
</table>
<h3>Common Examples of Locust</h3>
<ul>
<li><strong>Desert locust</strong> — Schistocerca gregaria, the most destructive species, swarming across 60 countries from West Africa to India.</li>
<li><strong>Migratory locust</strong> — Locusta migratoria, the most widely distributed locust species, found across Africa, Asia, Europe, and Australia.</li>
<li><strong>Red locust</strong> — Nomadacris septemfasciata, which breeds in southern Africa's outbreak areas and threatens sugarcane and cereal production.</li>
<li><strong>Australian plague locust</strong> — Chortoicetes terminifera, which erupts across New South Wales and Queensland, damaging pasture and grain crops.</li>
<li><strong>Moroccan locust</strong> — Dociostaurus maroccanus, a major pest in North Africa, Spain, and Central Asia, attacking both crops and rangeland.</li>
<li><strong>Italian locust</strong> — Calliptamus italicus, which damages crops and pastures across southern Europe, Central Asia, and North Africa.</li>
<li><strong>Bombay locust</strong> — Nomadacris succincta, which periodically swarms in India, Pakistan, and Southeast Asia, feeding on rice and sugarcane.</li>
<li><strong>South American locust</strong> — Schistocerca cancellata, which historically devastated agriculture in Argentina, Bolivia, and Paraguay.</li>
<li><strong>Tree locust</strong> — Anacridium melanorhodon, which feeds on tree foliage and shrubs in the Sahel region of Africa rather than grasses.</li>
<li><strong>Brown locust</strong> — Locustana pardalina, which swarms in South Africa's Karoo region, damaging small grains and grazing lands.</li>
</ul>
<h3>Advantages and Limitations of Locust</h3>
<table>
<thead>
<tr><th>Advantages</th><th>Limitations</th></tr>
</thead>
<tbody>
<tr><td>Serve as a high-protein food source; dried locusts contain 50-60% protein, consumed in 65 countries across Africa, Asia, and the Middle East.</td><td>Destroy staple crops rapidly; a single swarm can eliminate an entire season's harvest for millions of smallholder farmers within hours.</td></tr>
<tr><td>Provide a nutrient-rich natural fertilizer; decomposing locust bodies return nitrogen and phosphorus to soil, boosting subsequent plant growth.</td><td>Trigger food insecurity and famine; the 2003-2005 West African outbreak affected 8 million people and caused $2.5 billion in crop losses.</td></tr>
<tr><td>Create economic opportunities; locust harvesting and processing generates income for rural communities in Kenya, Uganda, and Thailand.</td><td>Require costly control operations; the 2020 East African swarm cost over $500 million in aerial pesticide spraying across 10 countries.</td></tr>
<tr><td>Act as a protein source for livestock feed; locust meal replaces fishmeal in poultry and aquaculture diets with comparable growth performance.</td><td>Cause environmental damage from pesticide use; broad-spectrum insecticides kill beneficial insects, pollinators, and natural predators.</td></tr>
<tr><td>Contribute to ecological nutrient cycling; swarms redistribute plant biomass and organic matter across large geographic areas.</td><td>Create international political tensions; swarms crossing borders complicate coordinated control efforts and blame attribution between nations.</td></tr>
<tr><td>Provide research value; locust phase-change biology informs understanding of phenotypic plasticity, epigenetics, and neural mechanisms.</td><td>Induce panic and social disruption; locust invasions force families to abandon farms, deplete savings, and migrate to urban centers.</td></tr>
<tr><td>Generate employment during outbreaks; swarm monitoring, reporting, and control operations hire thousands of temporary field workers.</td><td>Resist control measures; gregarious nymphs exhibit behavioral resistance to some insecticides, requiring repeated applications and higher doses.</td></tr>
<tr><td>Stimulate agricultural innovation; locust pressure drives development of biopesticides, fungal pathogens, and remote sensing detection technologies.</td><td>Damage rangeland ecosystems; heavy feeding removes vegetation cover, leading to soil erosion, desertification, and reduced grazing capacity.</td></tr>
<tr><td>Offer cultural significance; locusts appear in religious texts, traditional medicine, and indigenous food systems across affected regions.</td><td>Worsen poverty cycles; farmers who lose crops often sell livestock or take high-interest loans, trapping them in long-term debt.</td></tr>
<tr><td>Provide ecological indicators; locust outbreaks signal environmental changes like rainfall patterns, land degradation, and climate variability.</td><td>Create unpredictable economic losses; swarm timing and location are difficult to forecast, complicating insurance and disaster preparedness planning.</td></tr>
</tbody>
</table>

<h2>What Is Cicada?</h2>
<p>Cicada is a superfamily of true bugs (Hemiptera) known for loud acoustic mating calls and long underground juvenile phases. Cicadas are herbivorous insects that feed on plant xylem sap using piercing mouthparts. They exist worldwide, with periodical species emerging synchronously after 13 or 17 years.</p>
<h3>Definition of Cicada</h3>
<p>A cicada is an insect in the order Hemiptera, suborder Auchenorrhyncha, with prominent membranous wings, short antennae, and sound-producing tymbals on males. Cicadas are defined by their nymphal burrowing lifestyle and adult arboreal feeding. Their unique acoustic organs distinguish them from all other sap-feeding insects.</p>
<h3>Key Characteristics of Cicada</h3>
<table>
<thead>
<tr><th>Characteristic</th><th>What It Means in Practice</th></tr>
</thead>
<tbody>
<tr><td>Tymbal organs</td><td>Ribbed membranes on males that buckle rapidly to produce species-specific songs reaching 100 decibels.</td></tr>
<tr><td>Xylem feeding</td><td>Adults and nymphs suck nutrient-poor plant sap, excreting excess liquid as honeydew.</td></tr>
<tr><td>Long life cycles</td><td>Most species live 2-5 years underground; periodical Magicicada last 13 or 17 years.</td></tr>
<tr><td>Nymphal burrowing</td><td>Juveniles dig tunnels with fossorial front legs, feeding on tree roots for years.</td></tr>
<tr><td>Emergence synchrony</td><td>Periodical broods emerge in millions on the same night, overwhelming predators via satiation.</td></tr>
<tr><td>Molt to adult</td><td>Final nymphal instar climbs vertical surfaces, splits its exoskeleton, and expands wings.</td></tr>
<tr><td>Short adult life</td><td>Most adults live only 4-6 weeks above ground, focused solely on mating and egg-laying.</td></tr>
<tr><td>Egg-laying damage</td><td>Females use saw-like ovipositors to slit twigs, causing flagging in young trees.</td></tr>
<tr><td>Predator defenses</td><td>Large numbers, loud noise, and erratic flight confuse birds, wasps, and mantises.</td></tr>
<tr><td>Ecosystem role</td><td>Cicada carcasses and nymph tunnels aerate soil and recycle nitrogen after mass emergences.</td></tr>
</tbody>
</table>
<h3>Common Examples of Cicada</h3>
<ul>
<li><strong>Magicicada septendecim</strong> - A 17-year periodical cicada in the eastern US, famous for its high-pitched "Pharaoh" chorus.</li>
<li><strong>Magicicada tredecim</strong> - A 13-year periodical species in the southern US, with a slower, buzzy mating call.</li>
<li><strong>Tibicen tibicen</strong> - An annual dog-day cicada in North America, producing a soft, raspy drone in late summer.</li>
<li><strong>Megatibicen resonans</strong> - A large southeastern US cicada whose loud, resonant buzz carries over half a kilometer.</li>
<li><strong>Platypleura kaempferi</strong> - A common Asian cicada (Japan, Korea, China) with a distinctive "chirr-chirr" evening song.</li>
<li><strong>Cryptotympana atrata</strong> - The black cicada of East Asia, known for its metallic, high-frequency screech in urban trees.</li>
<li><strong>Cyclochila australasiae</strong> - The greengrocer cicada of Australia, one of the loudest insects, reaching 120 decibels.</li>
<li><strong>Thopha saccata</strong> - The double drummer of Australia, the world's largest cicada, with two ribbed sound chambers.</li>
<li><strong>Okanagana rimosa</strong> - A small, dark cicada of western North America, active in early summer mountain forests.</li>
<li><strong>Gaeana maculata</strong> - A brightly spotted cicada from Southeast Asia, often collected for its striking wing patterns.</li>
</ul>
<h3>Advantages and Limitations of Cicada</h3>
<table>
<thead>
<tr><th>Advantages</th><th>Limitations</th></tr>
</thead>
<tbody>
<tr><td>Provide a rich protein pulse for birds, mammals, reptiles, and fish during mass emergences.</td><td>Loud mating choruses can exceed 90 decibels, disrupting sleep and outdoor activities in urban areas.</td></tr>
<tr><td>Nymph tunneling aerates soil and improves water infiltration in forest and orchard floors.</td><td>Egg-laying slits in young twigs can stunt or kill nursery trees, especially apples and oaks.</td></tr>
<tr><td>Dead cicadas decompose quickly, releasing nitrogen and phosphorus that fertilize surrounding plants.</td><td>Mass emergences attract high predator concentrations, which may temporarily reduce local bird prey diversity.</td></tr>
<tr><td>Their predictable 13- or 17-year cycles offer natural experiments for studying predator-prey dynamics.</td><td>Periodical broods can be locally extirpated by habitat fragmentation, reducing genetic diversity.</td></tr>
<tr><td>Males' species-specific songs allow researchers to monitor biodiversity without visual surveys.</td><td>Honeydew excretion from feeding adults promotes sooty mold growth on leaves and branches.</td></tr>
<tr><td>Long underground life avoids seasonal weather extremes, ensuring reliable adult emergence windows.</td><td>Climate change may desynchronize emergence cues, causing off-cycle broods that fail to satiate predators.</td></tr>
<tr><td>They serve as bioindicators of forest health, since nymphs require undisturbed root systems.</td><td>Heavy infestations on young orchards can reduce fruit yield by up to 30% in severe years.</td></tr>
<tr><td>Their large size and slow flight make them easy prey for novice insect collectors and researchers.</td><td>Exoskeletons left on tree trunks and fences create unsightly litter during peak emergence weeks.</td></tr>
<tr><td>Some cultures eat cicadas as a sustainable protein source, rich in chitin and minerals.</td><td>Their piercing mouthparts cannot bite humans, but mistaken handling can cause startle-induced falls.</td></tr>
<tr><td>Their acoustic physiology inspires engineering research on miniature, high-efficiency sound generators.</td><td>Nymphs compete with tree roots for water and nutrients in drought-stressed urban soils.</td></tr>
</tbody>
</table>

<h2>Similarities Between Locust and Cicada</h2>
<table>
<thead>
<tr><th>Shared Aspect</th><th>How Locust and Cicada Are Alike</th></tr>
</thead>
<tbody>
<tr><td><strong>Insect Order</strong></td><td>Both locust and cicada belong to the class Insecta, sharing basic anatomical features like six legs and three body segments.</td></tr>
<tr><td><strong>Plant Feeding</strong></td><td>Locust and cicada both use piercing-sucking mouthparts to feed on plant fluids, though cicadas target woody stems and locusts prefer leaves.</td></tr>
<tr><td><strong>Herbivorous Diet</strong></td><td>Both locust and cicada are strictly herbivorous, consuming only plant material and never animal prey.</td></tr>
<tr><td><strong>Hemimetabolous Metamorphosis</strong></td><td>Locust and cicada both undergo incomplete metamorphosis, hatching as nymphs that gradually develop wings without a pupal stage.</td></tr>
<tr><td><strong>Nymph Stage</strong></td><td>Both locust and cicada spend significant time as wingless nymphs, molting multiple times before reaching adulthood.</td></tr>
<tr><td><strong>Antennae Function</strong></td><td>Locust and cicada both use short, bristle-like antennae primarily for sensing air movement and chemical cues.</td></tr>
<tr><td><strong>Compound Eyes</strong></td><td>Both locust and cicada possess large compound eyes that provide wide-angle vision for detecting predators and navigating.</td></tr>
<tr><td><strong>Sound Production</strong></td><td>Locust and cicada both produce audible sounds, with cicadas using tymbals and locusts using stridulation.</td></tr>
<tr><td><strong>Mating Calls</strong></td><td>Both locust and cicada males generate species-specific acoustic signals to attract females for reproduction.</td></tr>
<tr><td><strong>Egg Deposition</strong></td><td>Locust and cicada both lay eggs in soil or plant tissue using an ovipositor, ensuring offspring hatch near food sources.</td></tr>
<tr><td><strong>Seasonal Emergence</strong></td><td>Both locust and cicada emerge in warm months, with activity peaks tied to temperature and rainfall patterns.</td></tr>
<tr><td><strong>Predator Evasion</strong></td><td>Locust and cicada both rely on camouflage and sudden jumping or flying bursts to escape birds and small mammals.</td></tr>
<tr><td><strong>Wing Structure</strong></td><td>Both locust and cicada have two pairs of membranous wings, with the front pair slightly thickened for protection.</td></tr>
<tr><td><strong>Jumping Ability</strong></td><td>Locust and cicada both possess powerful hind legs adapted for leaping, though locusts are more proficient jumpers.</td></tr>
<tr><td><strong>Exoskeleton Composition</strong></td><td>Both locust and cicada have a chitinous exoskeleton that must be shed periodically for growth.</td></tr>
<tr><td><strong>Terrestrial Habitat</strong></td><td>Locust and cicada both inhabit terrestrial environments, favoring grasslands, forests, and agricultural fields.</td></tr>
<tr><td><strong>Agricultural Impact</strong></td><td>Both locust and cicada can damage crops, though locusts cause swarming devastation while cicadas cause localized tree injury.</td></tr>
<tr><td><strong>Population Fluctuation</strong></td><td>Locust and cicada both experience dramatic population spikes, with cicadas on multi-year cycles and locusts on irregular outbreaks.</td></tr>
<tr><td><strong>Temperature Dependence</strong></td><td>Both locust and cicada are ectothermic, relying on external heat to regulate metabolism and activity levels.</td></tr>
<tr><td><strong>Molting Process</strong></td><td>Locust and cicada both shed their exoskeleton multiple times, with the final molt revealing fully winged adults.</td></tr>
<tr><td><strong>Short Adult Lifespan</strong></td><td>Both locust and cicada adults live only weeks to months, focused primarily on mating and egg laying.</td></tr>
<tr><td><strong>Nocturnal Activity</strong></td><td>Locust and cicada both may be active at dawn or dusk, though cicadas are more strictly diurnal than locusts.</td></tr>
<tr><td><strong>Chemical Defense</strong></td><td>Both locust and cicada can secrete distasteful fluids when handled, deterring some predators.</td></tr>
<tr><td><strong>Global Distribution</strong></td><td>Locust and cicada both occur on every continent except Antarctica, showing wide ecological adaptability.</td></tr>
<tr><td><strong>Role in Food Web</strong></td><td>Both locust and cicada serve as primary consumers, transferring plant energy to higher trophic levels.</td></tr>
<tr><td><strong>Mating Behavior</strong></td><td>Locust and cicada both engage in prolonged copulation, with males often guarding females after mating.</td></tr>
<tr><td><strong>Overwintering Strategy</strong></td><td>Both locust and cicada survive cold seasons as eggs or nymphs, entering diapause until favorable conditions return.</td></tr>
<tr><td><strong>Wing Vein Pattern</strong></td><td>Locust and cicada both display complex wing venation that aids in flight stability and maneuverability.</td></tr>
<tr><td><strong>Ecosystem Engineering</strong></td><td>Both locust and cicada influence nutrient cycling through their feeding and excretion, enriching soil locally.</td></tr>
<tr><td><strong>Human Cultural Significance</strong></td><td>Locust and cicada both appear in folklore and literature, symbolizing plague (locust) or rebirth (cicada) across cultures.</td></tr>
</tbody>
</table>

<h2>Locust or Cicada: Which Should You Choose?</h2><p>The difference between locust and cicada comes down to behavior: locusts are swarming grasshoppers that destroy crops, while cicadas are harmless, loud tree-dwelling insects. <strong>Choose based on whether you face agricultural damage or noise.</strong> For most people, cicadas are the benign neighbor; locusts are the emergency.</p><h3>When to Use Locust</h3><p>Choose Locust when <strong>you need crop protection or pest control</strong> in agricultural regions. Locusts form destructive swarms that consume entire fields within hours, threatening food supply and farm revenue. Use locust-focused monitoring if you manage large-scale farmland in Africa, Asia, or the Middle East, where swarm outbreaks cause billions in losses. Budget for emergency pesticide application and biological controls.</p><h3>When to Use Cicada</h3><p>Choose Cicada when <strong>you are dealing with noise pollution or tree damage</strong> in residential or park settings. Periodical cicadas emerge every 13 or 17 years, producing mating calls that reach 100 decibels—comparable to a lawnmower. Use cicada guidance for homeowners, arborists, or event planners scheduling outdoor activities during summer emergence windows. No pest control is needed; focus on protecting young saplings with netting.</p>

<h2>Common Misconceptions About Locust and Cicada</h2>
<table>
<thead>
<tr><th>Common Myth</th><th>The Reality</th></tr>
</thead>
<tbody>
<tr><td><strong>"Locusts and cicadas are the same insect, just different names."</strong></td><td>Locusts are short-horned grasshoppers in the family Acrididae, while cicadas belong to the superfamily Cicadoidea, making them as different as beetles and butterflies.</td></tr>
<tr><td><strong>"All locusts are cicadas because both make loud noises."</strong></td><td>Only male cicadas produce sound using tymbals, whereas locusts create noise by rubbing their hind legs against their wings, a method called stridulation.</td></tr>
<tr><td><strong>"Cicadas are a type of locust that swarms in plagues."</strong></td><td>Periodical cicadas emerge in massive broods but do not swarm destructively; true locust swarms are migratory grasshoppers that consume crops in the desert.</td></tr>
<tr><td><strong>"Locusts and cicadas both have the same lifespan of a few weeks."</strong></td><td>Adult locusts live about 2-5 months, while periodical cicadas (Magicicada) live underground for 13 or 17 years before emerging for just 4-6 weeks.</td></tr>
<tr><td><strong>"Cicadas bite humans and are dangerous pests."</strong></td><td>Cicadas have piercing mouthparts for plant sap, not biting; they cannot sting, and their ovipositor is too weak to penetrate human skin, posing no threat.</td></tr>
<tr><td><strong>"Locusts only exist in Africa and the Middle East."</strong></td><td>Locust species occur on every continent except Antarctica, including the Rocky Mountain locust (extinct) in North America and the Australian plague locust.</td></tr>
<tr><td><strong>"Cicadas are silent at night because they sleep."</strong></td><td>Many cicada species call at dusk and night, like the dog-day cicada; their activity depends on temperature, not daylight, and they do not sleep like mammals.</td></tr>
<tr><td><strong>"A locust swarm is just a large group of cicadas flying together."</strong></td><td>Locust swarms consist of grasshoppers that change behavior and morphology (from solitary to gregarious phase) when crowded, unlike cicadas which never form migratory swarms.</td></tr>
<tr><td><strong>"Cicadas eat crops and cause agricultural damage like locusts."</strong></td><td>Cicadas feed on tree xylem sap with minimal impact, whereas locusts consume entire fields of grasses and grains, causing billions in agricultural losses annually.</td></tr>
<tr><td><strong>"Locusts and cicadas both have transparent wings with the same vein pattern."</strong></td><td>Cicadas have membranous wings with many cross-veins held roof-like over the body, while locusts have leathery forewings (tegmina) and fan-shaped hindwings folded lengthwise.</td></tr>
<tr><td><strong>"The 17-year locust is actually a locust species."</strong></td><td>The 17-year "locust" is a misnomer; it is a periodical cicada (Magicicada septendecim), not a grasshopper, and early American colonists incorrectly called it a locust.</td></tr>
<tr><td><strong>"Cicadas are deaf and cannot hear their own songs."</strong></td><td>Cicadas have tympanal organs on their abdomen that detect sound; males even have auditory structures that protect their hearing from their own intense calls.</td></tr>
<tr><td><strong>"Locusts are solitary insects that never interact with each other."</strong></td><td>Locusts exhibit density-dependent polyphenism; when populations spike, they aggregate into marching bands and flying swarms, triggered by physical contact and pheromones.</td></tr>
<tr><td><strong>"Cicadas are related to crickets or grasshoppers."</strong></td><td>Cicadas are in the order Hemiptera (true bugs), while crickets and grasshoppers are in Orthoptera; cicadas are more closely related to aphids and leafhoppers.</td></tr>
<tr><td><strong>"All locusts are brown or green like grasshoppers."</strong></td><td>Gregarious locusts change color dramatically, turning yellow, black, or pink (as nymphs) due to serotonin and pheromone shifts, unlike solitary green or brown forms.</td></tr>
<tr><td><strong>"Cicadas only appear in summer months in tropical regions."</strong></td><td>Cicadas inhabit temperate zones too, with annual species emerging every summer; periodical cicadas appear in spring (May-June) across the eastern United States.</td></tr>
<tr><td><strong>"Locusts are harmless to humans and only eat plants."</strong></td><td>While locusts do not bite people, their swarms strip vegetation, causing famine and economic collapse; a desert locust swarm can eat 423 million pounds of plants daily.</td></tr>
<tr><td><strong>"Cicadas have no predators because they are toxic."</strong></td><td>Cicadas are not toxic; they are preyed upon by birds, wasps, mantises, and even humans, but their massive synchronized emergences overwhelm predators through sheer numbers.</td></tr>
<tr><td><strong>"Locusts and cicadas both undergo incomplete metamorphosis with no pupal stage."</strong></td><td>Both do have hemimetabolous development (egg, nymph, adult), but locust nymphs resemble small grasshoppers, while cicada nymphs are wingless, burrowing creatures with raptorial front legs.</td></tr>
<tr><td><strong>"Cicadas are a sign of an impending locust plague."</strong></td><td>Cicada emergences are unrelated to locust outbreaks; locust plagues follow rainfall and vegetation growth in arid zones, not cicada activity or soil conditions.</td></tr>
<tr><td><strong>"Locusts are a separate species from grasshoppers."</strong></td><td>Locusts are not a distinct species; they are specific grasshopper species (e.g., Schistocerca gregaria) that exhibit swarming behavior under certain environmental triggers.</td></tr>
<tr><td><strong>"Cicadas are blind and rely only on vibrations to navigate."</strong></td><td>Cicadas have five eyes (two compound, three ocelli) and can see movement and light; they use visual cues for mate location and predator avoidance, not just vibrations.</td></tr>
<tr><td><strong>"Locusts are cold-blooded and inactive in winter like cicadas."</strong></td><td>Both are ectothermic, but locusts in temperate regions overwinter as eggs in soil, while cicadas overwinter as nymphs underground; neither is active in freezing temperatures.</td></tr>
<tr><td><strong>"Cicadas are the loudest insects, but locusts are silent."</strong></td><td>Male locusts also produce sounds (buzzing or clicking) during courtship, though at lower frequencies; cicadas reach up to 106 dB, but some locusts are audible from meters away.</td></tr>
<tr><td><strong>"Locusts and cicadas both have chewing mouthparts for eating leaves."</strong></td><td>Locusts have mandibulate mouthparts for chewing solid plant tissue, while cicadas have piercing-sucking mouthparts (stylets) that tap into xylem vessels for liquid sap.</td></tr>
<tr><td><strong>"Cicadas are invasive species that spread diseases to crops."</strong></td><td>Cicadas are native insects in most regions; they do not transmit plant pathogens, and their egg-laying can damage young trees but does not spread disease or infest stored grain.</td></tr>
<tr><td><strong>"A locust's jump and a cicada's flight are equally powerful."</strong></td><td>Locusts are powerful jumpers using elastic hind legs to leap 20 times their body length, while cicadas are weak jumpers but strong fliers, using rapid wing beats for sustained flight.</td></tr>
<tr><td><strong>"Cicadas are nocturnal creatures that hide from the sun."</strong></td><td>Most cicadas are diurnal, calling during the hottest part of the day; only a few species, like the evening cicada (Tibicen), become active at dusk and after dark.</td></tr>
<tr><td><strong>"Locusts and cicadas have identical antennae shapes."</strong></td><td>Cicadas have short, bristle-like antennae (setaceous), while locusts have long, thread-like antennae (filiform) that can exceed their head and thorax length, aiding in sensory detection.</td></tr>
<tr><td><strong>"The terms locust and cicada are interchangeable in the Bible."</strong></td><td>Biblical "locusts" (e.g., in Exodus) refer to swarming grasshoppers, but the word "cicada" never appears in the Bible; the Greek word "akris" specifically means locust, not cicada.</td></tr>
</tbody>
</table>

<h2>Conclusion</h2><p>Difference Between Locust and Cicada comes down to behavior: locusts form destructive swarms, while cicadas emerge in periodic broods but do not swarm destructively. Choose "locust" when describing grasshopper swarms. Choose "cicada" for loud, winged insects with synchronized emergences. This distinction clarifies their ecological impact and prevents misidentification.</p>

## FAQ

### What is the main difference between a locust and a cicada?
The main difference is that locusts are a type of short-horned grasshopper that can form destructive swarms, while cicadas are a separate insect family known for their loud mating calls and periodic mass emergences.

### Are locusts and cicadas the same insect?
No, locusts and cicadas are not the same insect; locusts belong to the order Orthoptera alongside grasshoppers, whereas cicadas belong to the order Hemiptera, making them more closely related to aphids and leafhoppers.

### Which is more destructive to crops: locusts or cicadas?
Locusts are far more destructive to crops because a single square kilometer swarm can contain up to 80 million adults and consume the same amount of food in one day as 35,000 people, while cicadas rarely cause significant agricultural damage.

### Do locusts and cicadas both make noise?
Yes, both locusts and cicadas produce sounds, but cicadas are notably louder, with some species reaching 100 decibels, comparable to a motorcycle engine, whereas locusts create softer sounds primarily by rubbing their legs against their wings.

### What is the typical lifespan of a locust compared to a cicada?
A locust typically lives for 3 to 5 months, while a cicada's lifespan varies dramatically by species, with annual cicadas living 2 to 5 years and periodical cicadas living 13 or 17 years underground before emerging as adults.

### Are locusts or cicadas edible for humans?
Both locusts and cicadas are edible for humans and are consumed in many cultures, but cicadas are often preferred because they contain about 42% protein by dry weight, while locusts offer roughly 35% protein and a slightly grassier flavor.

### Can locusts and cicadas be found in the same habitat?
Yes, locusts and cicadas can share the same habitat, such as warm grasslands or woodlands, but locusts prefer open, dry areas with short vegetation for egg-laying, while cicadas require trees or shrubs where nymphs feed on root sap.

### What is a common beginner mistake when identifying a locust versus a cicada?
A common beginner mistake is calling any large, buzzing insect a locust, when in fact cicadas have short, thick antennae, wide-set eyes, and clear, membranous wings held roof-like over their bodies, while locusts have long, flexible antennae and folded jumping legs.

### Are locusts and cicadas interchangeable in pest control strategies?
No, locusts and cicadas are not interchangeable in pest control because locust swarms require large-scale insecticide applications or biopesticides like Metarhizium fungus, whereas cicada management focuses on netting young trees and pruning egg-laying damage, since cicadas do not swarm.

### Can I switch from eating locusts to eating cicadas without changing my recipe?
Yes, you can switch from eating locusts to cicadas in most recipes, but you must adjust cooking time because cicadas have softer exoskeletons and higher moisture content, so they cook faster and require less oil than the drier, chewier locusts.
