Rangeland
Guides
Acrididae
Short-horned Grasshoppers, Grasshoppers
Acrididae is the largest family of grasshoppers, comprising approximately 6,700–10,000 species within the suborder Caelifera. Members are characterized by short, stout antennae and auditory tympana located on the first abdominal segment. The family includes all locust species capable of forming destructive swarms, making it economically significant worldwide. Recent molecular phylogenetic studies indicate the family originated in South America during the Paleocene, approximately 59 million years ago, rather than Africa as previously believed.
Acrolophitus
Crested-keel grasshopper
Acrolophitus is a genus of North American grasshoppers in the family Acrididae, subfamily Gomphocerinae. The genus contains at least four described species, including Acrolophitus hirtipes, A. maculipennis, A. nevadensis, and A. pulchellus. These grasshoppers are found primarily in western North America, inhabiting rangeland and grassland habitats. The genus is characterized by distinctive morphological features of the pronotum.
Acrolophitus hirtipes
Green Fool Grasshopper, Plains Point-head Grasshopper, Crested-keel Grasshopper
Acrolophitus hirtipes is a slant-faced grasshopper in the family Acrididae, commonly known as the green fool grasshopper or plains point-head grasshopper. It is native to the grasslands of central North America, with documented occurrences in Colorado, North Dakota, Nebraska, Oklahoma, and Wyoming. The species is part of the tribe Acrolophitini, which is characterized by distinctive head morphology. It has been recorded in systematic surveys of western rangeland grasshoppers, indicating it is a regular component of prairie grasshopper communities.
Aeoloplides
Saltbush Grasshoppers
Aeoloplides is a genus of spur-throated grasshoppers comprising approximately nine described species. Members are commonly known as saltbush grasshoppers, reflecting their documented association with saltbush-dominated habitats. The genus belongs to the subfamily Melanoplinae within family Acrididae. Species within this genus occur in western North America, with records from Colorado, Wyoming, and surrounding states.
Aeoloplides tenuipennis
narrow-winged saltbush grasshopper, narrow-winged bush grasshopper
A spur-throated grasshopper specialized on chenopod plants, particularly saltbushes (Atriplex species). It inhabits arid and semi-arid regions of the southwestern United States and northern Mexico, where it feeds on plants often considered noxious weeds, including Russian thistle (Salsola tragus). The species is generally regarded as beneficial or innocuous in rangeland settings rather than a crop pest.
Amphitornus coloradus
striped slant-face grasshopper, striped grasshopper
Amphitornus coloradus is a medium-sized slant-faced grasshopper distributed across western North American grasslands. It is a significant pest of rangeland, feeding almost exclusively on grasses and sedges. The species is characterized by distinctive chocolate brown stripes running above the compound eyes and onto the pronotum. It is an early-hatching species with strong flight capabilities, though it rarely achieves dominant population status in grasshopper assemblages.
Anabrus simplex
Mormon Cricket
Anabrus simplex, commonly known as the Mormon cricket, is a large flightless shieldbacked katydid (family Tettigoniidae, subfamily Decticinae) native to western North America. Despite its common name, it is not a true cricket. The species is notable for its periodic outbreak populations that form large migratory bands, causing significant damage to rangeland forage and cultivated crops. It exhibits a sex-role reversed mating system where males provide nuptial gifts and females compete for mates. The species has been documented from low-elevation sagebrush steppe to alpine tundra above 11,000 feet.
Arphia conspersa
Speckle-winged Rangeland Grasshopper, Speckled Rangeland Grasshopper
Arphia conspersa is a large band-winged grasshopper (family Acrididae, subfamily Oedipodinae) distributed across western North America from Alaska to Mexico. Adults are active primarily in spring, distinguishing them seasonally from the related redwinged grasshopper (Arphia pseudonietana) which appears in late summer and fall. The species exhibits distinctive visual and acoustical courtship displays, with males performing aggregation flights accompanied by crackling crepitation. It inhabits diverse grassland habitats including prairies, desert shrub communities, and montane meadows up to 11,000 feet elevation.
Aulocara elliotti
Big-headed Grasshopper, Bigheaded Grasshopper, Elliott Grasshopper
Aulocara elliotti, commonly known as the big-headed grasshopper, is a medium-sized slant-faced grasshopper native to western North America. It is a significant economic pest of rangeland grasses, often reaching outbreak densities of 20-40 individuals per square yard. The species is notable for its relatively large head, early spring emergence, and destructive feeding behavior that includes both consumption and cutting of grass leaves. It completes one generation annually and is frequently the dominant species in grasshopper assemblages across desert, mixedgrass, shortgrass, and bunchgrass prairies.
Boopedon nubilum
ebony grasshopper, black-males grasshopper, plains boopie
Boopedon nubilum is a large slant-faced grasshopper inhabiting western North American grasslands. Males are strikingly black with functional wings, while females are large, pale brown, and typically flightless. The species is a specialized grass feeder with documented food preferences that vary geographically. At high densities, it becomes a significant pest of rangeland forage, particularly in the southern mixedgrass and desert prairies of Arizona, New Mexico, and western Texas.
Bruneria brunnea
Bruner slant-faced grasshopper, Bruner's Grasshopper
Bruneria brunnea is a medium-sized slant-faced grasshopper native to western North America. It inhabits mountain meadows, mixedgrass prairies, and alpine tundra at elevations from 1,600 to 11,100 feet. The species is a specialized grass and sedge feeder that becomes a serious rangeland pest during population irruptions. It has been documented to reach densities of 15 adults per square yard and contributed to a historic outbreak covering 2,000 square miles in British Columbia in 1920.
Caelifera
Grasshoppers, Locusts, and Allies, Short-horned Grasshoppers
Caelifera is a suborder of Orthoptera comprising approximately 12,000 described species across 2,400 genera, including grasshoppers, ground-hoppers (Tetrigoidea), and pygmy mole crickets (Tridactyloidea). The group is distinguished from the other orthopteran suborder Ensifera by short antennae, enlarged hind legs adapted for jumping, and a stout, chisel-like ovipositor (the source of its Latin name meaning 'chisel-bearing'). Caelifera represents one of the oldest lineages of chewing herbivorous insects, with fossil records extending to the latest Permian. The suborder is divided into two infraorders: Tridactylidea (pygmy mole crickets and extinct relatives) and Acrididea (grasshoppers and ground-hoppers).
Conophorus sackenii
Conophorus sackenii is a species of bee fly (family Bombyliidae) described by Johnson & Maughan in 1953. It belongs to the tribe Conophorini within the subfamily Bombyliinae. The species is known from western North America, with records from western Canada and the western United States.
Cratypedes
Pronotal range grasshopper
Cratypedes is a genus of band-winged grasshoppers in the family Acrididae, established by Scudder in 1876. The genus contains at least two described species: C. lateritius (Nevada red-winged grasshopper) and C. neglectus (Pronotal range grasshopper). These grasshoppers are associated with rangeland habitats in western North America, particularly in sagebrush ecosystems. Some species appear to have a two-year life cycle.
Encoptolophus
dusky grasshoppers, clouded grasshoppers, pale clouded grasshopper, western clouded grasshopper, coast clouded grasshopper, southwestern dusky grasshopper
Encoptolophus is a genus of band-winged grasshoppers comprising approximately eight described species distributed across western North America. Members of this genus are medium-sized grasshoppers characterized by long wings extending beyond the abdomen, banded tegmina, and often blue hind tibiae. The genus has undergone taxonomic revision, with species formerly assigned to Encoptolophus now placed in the new genus Nebulatettix and in Chimarocephala. Several species serve as important components of grassland ecosystems, with some achieving local dominance in mixedgrass and shortgrass prairie habitats.
Encoptolophus costalis
Dusky Grasshopper, Western Clouded Grasshopper
Encoptolophus costalis is a medium-sized band-winged grasshopper native to western North America. It is primarily a grass-feeding species with a strong preference for western wheatgrass and needleleaf sedge. The species exhibits marked sexual dimorphism in body size and possesses long wings enabling dispersal flight. It is most abundant in the northern mixedgrass prairie, where it can become locally dominant, though typically remains a subdominant member of grasshopper assemblages.
Encoptolophus sordidus
clouded grasshopper, dusky grasshopper, dusky locust
Encoptolophus sordidus is a medium-sized band-winged grasshopper native to North American grasslands. Adults are sexually dimorphic in body size, with females substantially larger than males. The species exhibits strong dietary specialization for native grasses and sedges, with documented ontogenetic shifts in food preferences between nymphal instars and adults. It is primarily a rangeland species, occasionally reaching dominant population status in favorable habitats. The species possesses long wings enabling dispersal flight, and has been observed migrating from depleted rangeland into adjacent crop areas.
Eritettix simplex
velvet-striped grasshopper, velvet-striped locust
Eritettix simplex, the velvet-striped grasshopper, is a medium-sized slant-faced grasshopper in the family Acrididae. It is characterized by distinctive velvet-like dark bands along the lateral carinae of the pronotum and three longitudinal carinae on the head. The species has an extensive range across North America, with major population centers in the Great Plains and Appalachian Mountains. It feeds almost exclusively on grasses and sedges, with blue grama being a highly preferred food plant.
Flexamia huroni
Huron River Leafhopper
Flexamia huroni is a leafhopper species in the family Cicadellidae, described by Bess & Hamilton in 1999. It belongs to the genus Flexamia, a group of leafhoppers known for their specialized host plant associations with grasses. The species is named after the Huron River in Michigan, where it was first collected. Like other members of the genus, it likely exhibits strong ecological dependence on specific grass host plants.
leafhoppercicadellidaedeltocephalinaeparalimniniflexamiagrass-specialistmichigan-endemicauchenorrhynchahemipterainsectaarthropodaanimaliatrue-bugplanthopper-relative1999-descriptionbesshamiltonhuronihuron-riverusanorth-americagrassland-insecthost-specificpoorly-knownrareuncommondata-deficientgbifcatalogue-of-lifencbiinaturalisttaxonspeciesacceptedhexapodacicadomorphaclypeatamembracoideaparalimninaflexamia-huronibess-&-hamilton1999exact-matchaccepted-namecanonical-namescientific-nameauthorshiprankstatusmatchedtaxonomyclassificationeukaryotametazoadistributionmichiganobservations0wikipedianonepreferred-common-namehuron-river-leafhoppertrue-bugsgroupkingdomphylumclassorderfamilygenusauthorityiptintegrated-publishing-toolkitbiodiversity-data-journalzookeysnature-conservationcomparative-cytogeneticsopen-accessopen-accessjournalpublicationdatasetspecimentypenomenclatural-typeherbariumuniversity-of-granadaspainfungilichensagaricalescortinariusantonio-ortegamediterraneanfranceitalyimage-collectioncolección-de-imágenes-de-los-tipos-nomenclaturales-de-hongoslíquenesmusgos-y-algasgdagdacvizosoquesada2015doi10.3897bdj3e5204new-speciesnew-jersey-pine-barrensmuhlenbergia-torreyanapinebarren-smokegrassthreatened-speciesandrew-hicksmuseum-of-natural-historyuniversity-of-coloradogerry-moorenatural-resources-conservation-servicegreensboronculi-lorimerbrooklyn-botanic-gardenf.-whitcombirobert-whitcombmicrobiologyornithologyecologyhost-plantwarming-climatehuman-activitieszookeys-51169-79zookeys.511.9572roundwormnematodeantarcticamblydorylaimus-isokaryonipararhyssocolpus-paradoxusbulgariascanning-electron-microscopysemmaritime-antarcticantarctic-islandslip-regionspearvulvapostembryonic-developmentmolecular-analysesdorylaimidaelshishkalazarovaradoslavovhristovpeneva25-68zookeys.511.9793anidiv2bulgarian-academy-of-sciencesnational-scientific-fundoctocoralokinawajapannanipora-kamurailiving-fossilblue-coralhelioporaaragonite-calcium-carbonateskeletonscleractinianssoft-coralheliporacealithotelestidaeepiphaxumdeep-seashallow-coral-reefzamami-islandnational-parkmiyazakireimer1-23zookeys.511.9432non-biting-midgechironomusch.-bernensisnorth-caucasusrussiacaucasian-populationseuropesiberiakaryotypemorphologymouthpartslarvaechromosomegenotypic-combinationsmineralizationeutrophicationkarmokovpolukonovasinichkinatembotov-institute-of-ecology-of-mountain-territoriessaratov-state-medical-universitycomparative-cytogenetics-9281-297compcytogen.v9i3.4519sea-turtlerescue-centrefirst-aid-stationloggerheadgreen-turtlecaretta-carettachelonia-mydasbycatchmortalitygreecemigrationsexual-maturityullmannstachowitschuit-the-arctic-university-of-norwaynature-conservation-1045-69natureconservation.10.4890regional-activity-centre-for-specially-protected-areasporcupinecoendou-ichilluslower-urubambaperucanopy-bridgepipelinenatural-gasarborealcamera-trapdwarf-porcupineiquitos770ggregorylundezamora-mezacarrasco-ruedarepsol-exploración-perúzookeys-509109-121zookeys.509.9821antprionopeltamadagascarseychellessubterraneanleaf-litterdracula-anthemolymphlarval-hemolymph-feedingoophagymadagascar-biodiversity-centeroversonfisherzookeys-507115-150zookeys.507.9303itobillenmasukospideranelosimussubsocialcobweb-spidertheridiidaedeforestationbiodiversity-hotspotagnarssonuniversity-of-vermontsmithsonian-national-museum-of-natural-historywallacehuxleybuffonhookerlamarckdarwinmoramoraeriophyoid-miteacarixinjiangchinarosaceaeparacolomerusgallji-wei-liwangxuezhangzookeys-50897-111zookeys.508.8940shihezi-universitygrasshopperwyomingmelanoplusmelanoplinaeacrididaetetrigidaegomphocerniaeoedipodinaecyrtacanthacridinaedistribution-atlasfield-guidewgiswyoming-grasshopper-information-systemkeycapinerasechristhebardhelferscudderblatchleythomassayharrisdegeerbrunersaussuregirarddodgewalkerfieberfabriciusservillemcneilltinkhamburmeisterhaldemanbig-horn-mountainsblack-hillsgladstonindigensinfantilisdodgeioregonensismarshalliyellowstone-national-parksagebrushpineelevationshortgrass-prairiemixedgrass-prairieforbgrasseconomic-damagerangelandbenefitoverwinteregghatchadultlate-summeraugustoctoberjunelife-cyclefood-habitsizecollectionsurveyunderreportedcommonendemicrestricted-rangeforest-openinggrassymoderate-elevationlargersmallereastwestunited-statesamericanorthsouthcentralrangeextentlimitedrestrictedabundantpopulationdensityoccurrencepresenceabsencehabitatenvironmentconditionaltitudetopographyterrainvegetationplantshrubtreeforestopeningmeadowprairiesteppesavannawoodlanddrawslopeaspectsoilsubstratemoisturetemperatureclimateweatherseasonphenologytimingactivitynymphemergemoltdevelopgrowreproducemateovipositdiegenerationvoltinismunivoltinebivoltinemultivoltinesemivoltinediapauseaestivationhibernationdispersalmovementbehaviorhabitactionfeedingdietfoodhostassociationrelationshipinteractionspecialistgeneralistmonophagyoligophagypolyphagyherbivoredetritivorepredatorparasitoidscavengereconomic-importancepestbeneficialneutraldamagecontrolmanagementconservationthreatenedendangeredvulnerablesecureunknownglobal-biodiversity-information-facilityesbiodiversity-image-portalspanish-collectionstype-specimenlichenantarcticabernensisliyellowstoneGomphocerinae
slant-faced grasshoppers
Gomphocerinae is a large subfamily of grasshoppers comprising at least 192 genera and 1,274 species distributed across every continent except Antarctica and Australia. Members are commonly known as slant-faced grasshoppers due to their characteristic head morphology. The subfamily is distinguished by a uniform femoral stridulatory mechanism used for acoustic communication, and exhibits remarkable diversity in calling songs and courtship behaviors. Many species inhabit grasslands and serve as important components of terrestrial food webs, though some are significant agricultural pests.
Hadrotettix trifasciatus
three-banded grasshopper, three-banded range grasshopper
Hadrotettix trifasciatus is a large band-winged grasshopper native to western North American grasslands. It is among the largest rangeland grasshopper species, with females reaching dry weights of approximately 469 mg. The species is notable for its distinctive wing banding pattern and preference for forbs over grasses in its diet. Despite its size, it maintains low population densities across most of its range and is not considered economically significant.
Hemileuca oliviae
Range Caterpillar, Range Caterpillar Moth
Hemileuca oliviae, the range caterpillar, is a day-flying saturniid moth native to grasslands of the southwestern United States and northern Mexico. The species is notable for periodic population outbreaks that can cause significant damage to rangeland vegetation, impacting forage availability for livestock. Its distribution is restricted to open grassland habitats due to predation pressure from woodland rodents on eggs and pupae. The moth has been studied extensively for its ecological interactions, including host plant relationships, water physiology, and natural enemy complexes.
pestrangelandgrasslandoutbreakrodent-predationparasitoid-hostday-flying-mothSaturniidaeHemileucasouthwestern-USChihuahuaNew-Mexicolivestock-forage-competitionintegrated-pest-managementAnastatus-semiflaviduscondensed-tannin-responsewater-physiologyPeromyscus-trueipinyon-mouse-predationpopulation-cyclesMONA-number-7729Hodges-number-7729Hesperotettix viridis viridis
Snakeweed Grasshopper
Hesperotettix viridis viridis, the Snakeweed Grasshopper, is a medium-sized, oligophagous grasshopper endemic to North America that feeds primarily on composite plants (Asteraceae) in the tribe Astereae. It is notable for its host plant-associated genetic differentiation, with populations on different host plants showing significant genetic structuring. The subspecies has long wings capable of dispersal and exhibits specialized foraging behavior responsive to local food depletion.
grasshopperMelanoplinaespecialist-herbivorehost-associated-differentiationbiological-controlrangelandAsteraceaeoligophagousphytophilousecological-speciationNorth-AmericaWyomingColoradoNew-MexicoKansassnakeweedGutierreziaSolidagoAFLPpopulation-geneticsforaging-behaviordispersalsubspecies-viridis-viridisHeteropogon
tanglehead
Heteropogon is a genus of tussock grasses in the family Poaceae, commonly known as tangleheads. The genus is widespread primarily in tropical and subtropical regions, with species occurring in Australia, Africa, Asia, and the Americas. Heteropogon contortus, the most studied species, is a perennial grass significant in pastoral agriculture, particularly in Australian rangelands. The genus exhibits considerable phenotypic plasticity, with documented variation in flowering time, ploidy levels, and growth habit across its range.
Labops
grass bugs, black grass bugs
Labops is a genus of plant bugs in the family Miridae containing approximately 13 described species. Species within this genus are commonly known as grass bugs or black grass bugs and are associated with grassland habitats. Labops hesperius, the most studied species, is a significant pest of rangeland grasses in western North America. The genus is characterized by its association with Poaceae hosts and its economic impact on seed production in range and forage grasses.
Melanoplus davisi
Melanoplus davisi is a species of spur-throated grasshopper in the family Acrididae, described by Hebard in 1918 from the southeastern United States. It belongs to the large genus Melanoplus, which contains numerous economically and ecologically significant grasshopper species. The species appears to be relatively poorly documented in the primary grasshopper literature of the western United States, suggesting it may be of limited distribution or abundance compared to more widespread Melanoplus species.
spur-throated-grasshoppersoutheastern-USMelanoplinaeHebard-1918AcrididaeOrthopterainsectgrasshoppersoutheastern-United-StatesAlabamaFloridalimited-distributionpoorly-documentedrare-in-western-literatureEotettix-davisibasionymMelanoplusMelanopliniCaeliferaAcridideaHexapodaInsectaArthropodaAnimaliaaccepted-speciesEXACT-matchspecies-rankgrasshoppers-crickets-katydidsMetazoaPterygotaOrthoptera-orderAcrididae-familyMelanoplinae-subfamilyMelanoplini-tribeMelanoplus-genusdavisi-specific-epithet4-observationsiNaturalistcomplex-rankno-Wikipedia-summaryGBIFNCBICatalogue-of-Lifetaxonomy-matchdistribution-recordstaxontaxonomic-classificationbiological-classificationscientific-namecanonical-nameauthorshipauthorityrankgroupkingdomphylumclassorderfamilygenusspeciessubspeciesinfraspecific-epithettaxonomic-statusacceptedEXACTtaxonomytaxonomic-databasebiodiversityentomologyorthopterancaeliferanacridoidmelanoplinespur-throatspur-throatedgrasshopper-speciesinsect-speciesarthropod-speciesanimal-specieseukaryoteanimalarthropodhexapodacrididAlabama-Floridasoutheastsoutheasternlimitedrarewestern-literatureHebard1918EotettixdavisicomplexobservationsWikipediamatchdistributionrecordsclassificationbiologicalscientificcanonicalnameepithetstatusdatabaseguidewesternColoradoWyomingfield-guidefact-sheetdistribution-atlasinformation-systemWGISkeymapsRAATsreduced-agent-area-treatmentsrangelandmanagementlinkscommon-western-grasshoppersspecies-recordsaccountslistbiologydevelopmentstageshost-plantdamagepotentialsynonymypoorly-knownnot-includedcompilationDr-Pfadtnavigationmain-pagecontentslearn-moretopbackgrasshoppers-of-Coloradograsshoppers-of-Wyoming-and-the-WestGRASSHOPPER-NAMESGENUS-SPECIESCOMMON-SCIENTIFICSPECIES-GENUSabdominalisChloealtisThomasadmirabilisSyrbulaUhleragrestisTrimerotropisMcNeillalbaHypochloraDodgealpinusCeuthophilusScudderalutaceaSchistocercaangustipennisapiculataPardalophoraHarrisargentinusOecanthusSaussurearizonaeasperaTrachyrhachysbicolorDactylotumbispinosusbivittataMermiriaServillebivittatusSaybolliSpharagemonMorseborealisFieberbowditchibrachypteraPseudopomalabrevipesDaihniaHaldemanbruneribrunneusStenobothruscalifornicaBrunercalifornicuscampestriscapitoHippopedonStalcarlinianusCircotettixcarolinaDissosteiraLchenopodiiAeoloplidescinctacitrinaclavatusAeropedelluscollarecoloradusAmphitornuscomplanatipesconfususconspersaArphiacorallipesXanthippuscoronatacrenulataCordillacriscurtipennisChorthippuscyaneipenniscyaneusLeprusCockerelldawsoniidelicatulaPsoloessadeorumAgeneotettixdifferentialisdiscolordodgeielliottiAulocaraenigmaOedaloenotusequalefasciatusF-WalkerfemoratumfemurrubrumDeGeerflavidusfoedusfontanaformosusTropidolophusfraterculafusiformisgladstoniglaucipesgracileStethophymagracilishaldemaniihaydeniDerotmemahirtipesAcrolophitushumileinconspicuainfantiliskeelerikennicottikiowalakinuslatifasciatalongipennismagnaBrachystolaGirardmagnificaRehnmelanopteramontanusmontezumanebrascensisPhoetaliotesneglectusCratypedesnevadensisniveusnubilumBoopedonobscuraOpeiaoccidentalisoccipitalisoceloteHippiscusolivaceaCampylacanthaoregonensispackardiipallidipennisBurmeisterpardalinusMetatorparvicepsCibolacrispelidnaOrphulellapellucidaCamnulapictaWalkerpistrinariaplatteiMestobregmaponderosuspseudonietanaquadrimaculatumPhlibostromaquadripunctatusBeutenmullerrabulaRehn-and-HebardregalesrobustaUdeopsyllarobustusrufaHeliaulasanguinipesFabriciussimplexAnabrusEritettixsordidusEncoptolophussparsaspeciosaspeciosusHesperotettixsplendidusspretusWalshspurcatasubgracilisCaudellsulcifronsConozoatenuipennistexanatoltecaBrunnertrifasciatusHadrotettixtrististurnbulliutahensisverruculatusvirgataParopomalaviridifasciataChortophagaviridiswyomingensisxanthopterayarrowiinot-true-grasshoppersconfusedmanualTetrigidaeGomphocerinaeOedipodinaeCyrtacanthacridinaeRomaleidaeBrachystoliniTettigoniidaeDecticinaeRussianthistle-GrasshopperSnakeweed-GrasshopperCudweed-GrasshopperAlpine-GrasshopperNarrowwinged-Sand-GrasshopperTwostriped-GrasshopperNorthern-GrasshopperSagebrush-GrasshopperBruner-spurthroated-GrasshopperPasture-GrasshopperDawson-GrasshopperDevastating-GrasshopperDifferential-GrasshopperRedlegged-GrasshopperStriped-Sand-GrasshopperGladston-GrasshopperLittle-Spurthroated-GrasshopperKeeler-GrasshopperKennicott-GrasshopperLakin-GrasshopperFlabellate-GrasshopperPackard-GrasshopperNevada-Sage-GrasshopperMigratory-GrasshopperValley-GrasshopperLargeheaded-GrasshopperClubhorned-GrasshopperWhitewhiskered-GrasshopperStriped-GrasshopperBigheaded-GrasshopperWhitecrossed-GrasshopperEbony-GrasshopperBruner-Slantfaced-GrasshopperMeadow-GrasshopperCrenulatewinged-GrasshopperSpottedwinged-GrasshopperVelvetstriped-GrasshopperTwostriped-Slantface-GrasshopperObscure-GrasshopperSlantfaced-Pasture-GrasshopperFourspotted-GrasshopperBrownspotted-GrasshopperSpecklewinged-GrasshopperRedwinged-GrasshopperClearwinged-GrasshopperGreenstriped-GrasshopperHayden-GrasshopperCarolina-GrasshopperHigh-Plains-GrasshopperDusky-GrasshopperThreebanded-GrasshopperBluelegged-GrasshopperMottled-Sand-GrasshopperOrangelegged-GrasshopperFinned-GrasshopperKiowa-GrasshopperPallidwinged-GrasshopperRedshanked-GrasshopperLubber-GrasshopperMormon-CricketBarber-pole-grasshopperBarren-land-grasshopperBlack-winged-grasshopperBig-headBig-headed-grasshopperBlack-males-grasshopperBoopeeBroad-banded-grasshopperBrown-spotted-range-grasshopperCrackling-forest-grasshopperCrested-keel-grasshopperDust-grasshopperElliott-grasshopperField-cricketFour-spotted-grasshopperFour-spotted-tree-cricketFusiform-camel-cricketGarden-grasshopperGreat-crested-grasshopperGreat-plains-camel-cricketGreen-fool-grasshopperGreen-streak-grasshopperHuckleberry-spur-throat-grasshopperHomesteaderKiowa-range-grasshopperLarge-headed-locustLesser-migratory-grasshopperLittle-pasture-spur-throated-grasshopperLong-winged-locustLong-winged-plains-grasshopperMarsh-meadow-locustMcNeill-campestral-grasshopperMermiria-grasshopperNarrow-winged-spur-throated-grasshopperNorthern-green-striped-locustNorthwestern-red-winged-locustP-quad-grasshopperPackard's-grasshopperPallid-winged-grasshopperPard-grasshopperPlatte-range-grasshopperPrairie-tree-cricketPictured-grasshopperPlains-lubberPronotal-range-grasshopperRed-legged-grasshopperRed-nosed-grasshopperRed-shanksRobust-camel-cricketRufous-grasshopperSage-grasshopperSand-grasshopperSay's-grasshopperSlant-faced-grasshopperSnowy-tree-cricketSpeckled-rangeland-grasshopperSpotted-bird-grasshopperSpotted-wing-grasshopperSprinkled-locustStriped-slant-faced-grasshopperThistle-grasshopperThree-banded-range-grasshopperTiny-spur-throated-grasshopperTwo-striped-grasshopperUtah-camel-cricketVelvet-striped-grasshopperWarrior-grasshopperWestern-tree-cricketWhite-cross-grasshopperWhite-whiskers-grasshopperWrangler-grasshopperWrinkled-grasshopperWyoming-toothpick-grasshopperYellowish-spur-throat-grasshoppertumbulliobesalateritiuscostaliscinereushuroniindigensmarshalliregalisapicultatanitensshastanusbarnumidiversellusverruculatasuffusarugglesinspbrunneaMelanoplus devastator
devastating grasshopper
Melanoplus devastator, the devastating grasshopper, is a medium-sized spur-throated grasshopper endemic to the far western United States, primarily California, with limited occurrence in Oregon and Washington. It is a major agricultural pest known for irruptive population outbreaks that can cause extensive damage to rangeland forage, orchards, and crops. The species exhibits a unique life history among rangeland grasshoppers, with females entering reproductive diapause during summer and resuming egg development in fall triggered by decreasing photoperiod. When populations explode, nymphal bands and adult swarms migrate from depleted foothill rangelands into valley agricultural areas, sometimes traveling 30 miles or more.
Melanoplus sanguinipes
migratory grasshopper, lesser migratory grasshopper, red-legged grasshopper
Melanoplus sanguinipes is a medium-sized spur-throated grasshopper and one of the most economically important grasshopper pests in North America. It is widely distributed across the continent, inhabiting diverse grassland habitats from native prairies to agricultural fields and disturbed areas. The species exhibits remarkable ecological flexibility, feeding on both grasses and forbs, and displays migratory behavior at high population densities. Under favorable conditions, populations can increase exponentially and form swarms that travel hundreds of miles, causing extensive damage to crops and rangeland. The species has been extensively studied for its population ecology, host plant relationships, and integrated pest management.
Oedaleonotus
Oedaleonotus is a genus of spur-throated grasshoppers in the family Acrididae, subfamily Melanoplinae. The genus contains approximately nine described species distributed primarily in western North America. The best-known species, Oedaleonotus enigma (valley grasshopper), is a significant rangeland pest known for its migratory behavior and capacity to reach outbreak densities. Members of this genus are characterized by variable wing development, with some species having fully functional long wings and others having reduced or short wings.
Oedaleonotus enigma
Valley Grasshopper
Oedaleonotus enigma, the valley grasshopper, is a large, colorful spur-throated grasshopper native to western North America. It is a significant rangeland pest capable of reaching outbreak densities exceeding 20 adults per square yard. The species exhibits wing dimorphism, with both short-winged (brachypterous) and long-winged (macropterous) forms occurring in populations. It is notable for early spring hatching and a relatively long nymphal period of 42-50 days due to cool temperatures and six instars rather than the typical five.
Oedaleonotus orientis
Oedaleonotus orientis is a species of spur-throated grasshopper in the family Acrididae, first described by Hebard in 1920. It belongs to the subfamily Melanoplinae, a group characterized by the presence of a ventral spur on the throat. The species is found in North America, with records from Nevada. Like other members of the genus Oedaleonotus, it is a rangeland species associated with semiarid habitats.
Oedipodinae
Bandwing Grasshoppers, band-winged grasshoppers
Oedipodinae, commonly known as bandwing grasshoppers, is a subfamily of grasshoppers within the family Acrididae. Members are characterized by colorful, often banded hindwings that are typically concealed at rest but revealed during flight. The subfamily has a worldwide distribution and includes many species adapted to xeric and open habitats. Some Oedipodinae species are among the most economically important locusts, capable of forming dense migratory swarms that cause extensive agricultural damage.
Paropomala wyomingensis
Wyoming toothpick grasshopper
Paropomala wyomingensis, the Wyoming toothpick grasshopper, is a slant-faced grasshopper in the family Acrididae. It is common in the shortgrass prairies of eastern Wyoming, with populations diminishing in mixedgrass prairie and desert regions. Adults are active from mid-July to early September. The species feeds on multiple grass species and has been recorded from the western United States south to Central America.
Phlibostroma
Four-spotted grasshopper
Phlibostroma is a genus of grasshoppers in the family Acrididae, subfamily Gomphocerinae. The genus is represented by at least one described species, Phlibostroma quadrimaculatum (Thomas), commonly known as the four-spotted grasshopper. Members of this genus are associated with western North American grasslands and have been documented as components of rangeland grasshopper assemblages. The genus was established by Scudder in 1875.
Psoloessa
brown-spotted range grasshopper (P. delicatula), Texas spotted range grasshopper (P. texana)
Psoloessa is a genus of slant-faced grasshoppers in the family Acrididae, subfamily Gomphocerinae. The genus contains at least four described species distributed across western North America, from British Columbia to Mexico. Two species—P. delicatula (brown-spotted range grasshopper) and P. texana (Texas spotted range grasshopper)—are documented in Colorado and Wyoming grasshopper surveys. Members of this genus are characterized by their slant-faced morphology typical of the Gomphocerinae.
Psoloessa delicatula
Brown-spotted Range Grasshopper, Brownspotted Grasshopper
Psoloessa delicatula is a small slant-faced grasshopper inhabiting western North American grasslands. It exhibits a flexible life cycle ranging from one to two years depending on latitude. The species is notable for sophisticated thermoregulatory behaviors and specific feeding techniques on grasses and sedges. Population densities fluctuate dramatically, occasionally reaching outbreak levels in mixedgrass prairie habitats.
Spharagemon
band-winged grasshoppers
Spharagemon is a genus of band-winged grasshoppers in the family Acrididae, containing approximately 9–10 described species distributed across North America. Members of this genus are characterized by their association with sandy or loose soil habitats and their distinctive hindwing coloration patterns. The genus includes several well-studied species such as the mottled sand grasshopper (S. collare) and Say's grasshopper (S. equale), which serve as important indicators of sand prairie ecosystems.
Spharagemon equale
Say's grasshopper, orange-legged grasshopper
Spharagemon equale, commonly known as Say's grasshopper or the orange-legged grasshopper, is a relatively large band-winged grasshopper species in the family Acrididae. It is widely distributed across the grasslands of western North America, inhabiting tallgrass, mixedgrass, shortgrass, bunchgrass, and desert prairies, as well as shrub-grass communities of the Great Basin. The species is characterized by its orange hind tibiae, which give it its common name, and distinctive banded hindwings. It is a polyphagous feeder on grasses and forbs, typically occurring at low densities in rangeland assemblages.
Spharagemon equale equale
Orangelegged Grasshopper, Say's Grasshopper
Spharagemon equale equale is a relatively large bandwinged grasshopper native to western North American grasslands. Adults are distinguished by orange hind tibiae and orange inner hind femora marked with dark bands. The subspecies is polyphagous, feeding on diverse grasses and forbs with documented regional variation in plant preferences. It is a subdominant member of rangeland grasshopper assemblages, typically occurring at low densities with minor economic impact except during rare population increases. The species is a strong flier with long wings extending beyond the abdomen, and both sexes crepitate in flight.
Tetramesa
Tetramesa is a genus of minute phytophagous wasps in the family Eurytomidae comprising over 200 described species. Members are exclusively associated with grasses (Poaceae), where they typically induce stem or inflorescence galls. The genus exhibits pronounced host specificity, with most species restricted to a single grass species or closely related congeners. Several species have been deployed as biological control agents against invasive grasses, including T. romana for giant reed (Arundo donax) and candidate agents for medusahead (Taeniatherum caput-medusae) and African lovegrass (Eragrostis curvula). Adults feed on nectar. Recent phylogenomic studies have synonymized the genera Aiolomorphus and Cathilaria within Tetramesa.
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aspera
Finned Grasshopper
Trachyrhachys aspera, commonly known as the finned grasshopper, is a medium-sized band-winged grasshopper native to the shortgrass prairie ecosystems of western North America. This species exhibits strong habitat fidelity to blue grama grass (Bouteloua gracilis) dominated grasslands, where it functions as a subdominant member of grasshopper assemblages. The species is notable for its late-season phenology, hatching approximately four weeks after the sympatric Trachyrhachys kiowa, and for its highly specialized diet consisting almost exclusively of blue grama grass. Despite its potential economic impact as a forage competitor with livestock, populations have remained chronically low with no documented outbreak events.