Salt-marsh
Guides
Aeoloplides fratercula
Northern Coast Bush Grasshopper
Aeoloplides fratercula, known as the northern coast bush grasshopper, is a spur-throated grasshopper species in the family Acrididae. It belongs to a genus of grasshoppers associated with coastal and salt marsh habitats. The species has been documented in California and is considered part of the North American grasshopper fauna, though detailed biological information remains limited.
Anurida
Anurida is a genus of springtails (Collembola) in the family Neanuridae, established in 1865 by Laboulbène. The genus has cosmopolitan distribution with species occupying diverse habitats including intertidal marine zones, river floodplains, riparian areas, and forest ecosystems. Well-studied species include the intertidal specialist Anurida maritima, which exhibits complex tidal-entrained behaviors, and the terrestrial A. granaria, which has documented mycophagous associations. The genus shows notable morphological diversity in chaetotaxy and eye reduction, with some species groups exhibiting cryptic genetic divergence despite morphological similarity.
Collembolaspringtailsintertidaltidal-behaviorcryptic-speciesendosymbiontsWolbachiaSpiroplasmadiapauseunivoltinemycophagychaetotaxyNeanuridaecosmopolitan-distributioncircatidal-rhythmegg-diapausesalt-marshriver-floodplainriparian-zoneforest-habitatBeringian-faunagenetic-divergence-without-morphological-changetidal-entrainmentaggregation-behaviorsexual-dimorphism-in-foragingstarvation-mortalityholometabolous-like-developmentsetal-reductionocelli-reductionhammerae-groupAnurida-maritima-species-groupLaboulbène-1865PoduromorphaNeanurinaePseudachorutinaeterrestrialmarine-intertidalfreshwater-ripariannutrient-cyclingorganic-matter-decompositionfungal-dispersalapothecia-feedingclay-wall-nestsair-filled-cavitiestidal-refugeweather-dependent-activitytemperature-dependent-diapause-terminationmitochondrial-genome-divergenceancient-circatidal-behaviorcytoplasmic-incompatibilitymale-killingType-V-cif-genesgenome-wide-differentiationPool-seq-phylogenomicsHolarctic-distributiontemperate-zone-adaptationoverwintering-eggsautumn-mortalityphysiological-stressforaging-efficiencylow-temperature-limitationtidal-inundation-responsebehavioral-synchronizationnest-constructionsexual-reproductioncolonial-aggregationfungal-associationPeziza-arvernensisriverinagranariaoctoculatahirsutaelegansreductanarlibisetosaVladivostok-Botanical-GardenPrimorsky-KraiPolandSouthern-BrazilNorth-western-EuropeUnited-KingdomThe-NetherlandsAndeanArcticSub-arcticCapeCaribbeanCentral-Australiaconiferous-broadleaved-forestprotected-forestvertical-clay-wallscreek-wallssalt-marsh-foragingmarsh-wanderingnest-marsh-exchangemolting-refugeegg-deposition-sitessexually-mature-aggregationhibernating-eggsspring-hatchingsummer-egg-layingautumn-diapause-terminationwinter-development-suppressionadult-deathstarvation-riskglycogen-depletionlipid-depletionbody-size-declinesluggishness-at-low-temperaturelimited-low-water-periodtemperate-survival-strategycosmopolitan-species-with-local-adaptationgenetic-crosses-neededsex-ratio-studies-neededendosymbiont-effects-unknownreproductive-manipulation-potentialselfish-genetic-elementsmaternal-inheritancephylogenomic-analysissingle-copy-orthologous-genesnuclear-genome-divergencemitochondrial-lineage-associationspecies-group-conceptmorphological-stasisevolutionary-divergencesystematic-revision-neededtribe-validityNeanurinae-subdivisionPseudachorutinae-placementhigher-rank-taxonomy-matchGBIF-recordsiNaturalist-observationsCatalogue-of-Life-acceptanceNCBI-taxonomyEntognathaHexapodaEukaryotaMetazoaAnimaliaArthropodaspringtail-biodiversitysoil-mesofaunaintertidal-invertebratemarine-terrestrial-transition-zoneestuarine-ecologytidal-flat-ecologyfloodplain-ecologyriparian-ecologyforest-floor-ecologymycophagous-collembolanfungal-feeding-springtailnutrient-cyclerdecomposerdetritivoreorganic-matter-processorecosystem-engineer-(nest-construction)microhabitat-specialisthabitat-partitionsexual-dimorphismbehavioral-plasticityenvironmental-cue-responsephototaxis-modificationthermotaxis-responsehydrotaxis-responseaggregation-pheromone-(inferred)social-behavior-(colonial)reproductive-behaviorcourtshipoviposition-site-selectionegg-guarding-(absent)diapause-evolutionlife-history-strategyunivoltinismsemelparity-(effective)annual-life-cycleseasonal-polyphenism-(absent)developmental-arrestcold-requirement-for-developmenttemperature-threshold5°C-diapause-terminationspring-warming-triggerphenologypopulation-dynamicsdemographymortality-factorstarvationenvironmental-stressclimate-sensitivityhabitat-specificityendemism-(some-species)cryptic-biodiversitymolecular-taxonomyintegrative-taxonomyphylogeographypopulation-geneticsgenomic-resourcesWolbachia-genomeSpiroplasma-genomebacterial-endosymbiosishost-microbe-interactionreproductive-parasitismmutualism-(unknown)commensalism-(unknown)symbiont-phylogenyhorizontal-gene-transfer-(absent-in-data)prophage-genescif-gene-evolutionType-V-clademale-killing-gene-absenceCI-gene-presencewmk-gene-presenceSpAID-absencebacterial-genome-reduction-(inferred)host-adaptationcoevolutionsymbiont-sharing-between-host-lineagesgenetic-divergence-with-symbiont-sharingspeciation-mechanismreproductive-isolationcytoplasmic-incompatibility-as-speciation-driver-(unlikely-given-identical-cif-sequences)alternative-speciation-mechanismsecological-speciationbehavioral-isolationhabitat-isolationtemporal-isolationgeographic-isolationallopatric-divergenceparapatric-divergencesympatric-divergence-(possible)cryptic-species-identification-challengemorphological-taxonomy-limitationsmolecular-systematics-necessityDNA-barcodinggenome-skimmingPool-seqphylogenomic-inferencespecies-delimitationintegrative-species-conceptoperational-taxonomic-unitevolutionary-significant-unitconservation-unitbiodiversity-assessmentfaunisticsbiogeographydispersal-abilitypassive-dispersalactive-dispersalhabitat-fidelitysite-fidelitynest-fidelityphilopatry-(inferred)population-structuregene-flowgenetic-differentiationisolation-by-distanceisolation-by-environmentlocal-adaptationphenotypic-plasticitygenetic-accommodationevolutionary-developmental-biologyevo-devosetal-developmentsensory-organ-developmenteye-reduction-evolutioncave-adaptation-(absent)soil-adaptationintertidal-adaptationdesiccation-resistance-(inferred)salinity-tolerancehypoxia-tolerance-(inferred)nest-air-pocket-maintenancerespiratory-adaptationcuticular-waterproofing-(inferred)osmoregulationion-regulationexcretory-systemMalpighian-tubules-(standard)labial-glandsdigestive-systemmidguthindgutfeeding-apparatusmaxillamandiblelabrumepipharynxhypopharynxmouthparts-entognathoushead-capsuleantennaesegment-numbersegment-fusionthoraxabdomenfurca-(absent-in-some-Neanuridae)tenaculumcollophoreventral-tubereticulate-patternpigmentationcolorationsize-variationbody-shapecylindrical-bodysetal-arrangementmacrosetaemicrosetaesensory-setaemechanoreceptorschemoreceptorshygroreceptorsthermoreceptorsphotoreceptorsocelli-structureeye-number-reductioneye-complete-loss-(some-species)pigment-losscuticular-granulationcuticular-tuberclescuticular-scalesbody-sclerotizationintersegmental-membranesappendage-structureleg-segmentationclaw-structureunguiculustenent-hairempodial-appendagetibiotarsusfemurtrochantercoxasubcoxaabdominal-segmentationtergite-structuresternite-structurepleurite-structuretergal-chaetotaxysternal-chaetotaxypleural-chaetotaxyaxial-setaeparaxial-setaemarginal-setaep-row-setaea-row-setaem-row-setaesetal-formulasetal-nomenclatureFjellberg-systemGisin-systemtaxonomic-stabilitynomenclatural-actstype-speciestype-localitytype-specimenoriginal-descriptionsubsequent-redescriptionsfaunal-revisionscatalogueschecklistsdatabasesGBIFiNaturalistNCBIBOLDCOLITISEncyclopedia-of-LifeWikipediaprimary-literaturetaxonomic-literatureecological-literaturephysiological-literaturegenomic-literaturesymbiont-literaturebehavioral-literatureentomologyacarologysoil-zoologymarine-biologyintertidal-ecologyestuarine-sciencelimnologyfreshwater-biologyterrestrial-ecologyforest-ecologyfungal-ecologymicrobial-ecologysymbiosis-researchevolutionary-biologypopulation-biologyconservation-biologybiodiversity-sciencesystematicsphylogeneticspaleontology-(absent)fossil-record-(absent)amber-inclusion-(possible-but-unreported)subfossil-(absent)quaternary-record-(absent)historical-ecologyanthropogenic-impactpollution-sensitivitybioindicator-potentialconservation-status-(unevaluated)IUCN-Red-List-(absent)habitat-protection-needsprotected-area-occurrenceinvasive-potential-(low)agricultural-pest-(absent)household-pest-(absent)economic-importance-(minimal)scientific-importance-(high)model-organism-potentialteaching-organismresearch-subjectbiodiversity-componentecosystem-service-providercultural-significance-(absent)traditional-knowledge-(absent)indigenous-knowledge-(absent)vernacular-names-(absent)etymologyAnurida-(etymology-unknown,-possibly-Greek-'an-'-without-+-'oura'-tail,-referring-to-reduced-furca)Laboulbène1865historical-taxonomyclassical-taxonomymodern-taxonomyfuture-research-needstaxonomic-revisionphylogenetic-analysispopulation-genomic-studyfunctional-genomic-studydevelopmental-studyphysiological-studybehavioral-studyecological-studysymbiont-studyconservation-studyArmases
square-back American marsh crabs
Armases is a genus of sesarmid crabs comprising approximately 13 described species distributed across tropical and subtropical coastal regions of the Americas. These semi-terrestrial crabs inhabit salt marshes, mangroves, and estuarine environments, with some species exhibiting notable movement between marine and terrestrial habitats. Several species have been extensively studied for their larval development, metabolic ecology, and role in ecosystem energy transfer. The genus includes both species with larval export strategies to continental shelves and those breeding in supratidal rock pools.
Brachygluta abdominalis
ant-loving beetle
Brachygluta abdominalis is a species of ant-loving beetle in the family Staphylinidae, subfamily Pselaphinae. It is found in North America, with records from Canada and the eastern United States. This species inhabits coastal ecosystems, specifically occurring in leaf litter of salt marshes, beaches, and other shoreline environments. The species has a problematic taxonomic history due to a missing type specimen, and its identity has been discussed but not fully resolved in recent revisions.
Brephidium pseudofea
Eastern Pygmy-Blue
Brephidium pseudofea, commonly known as the Eastern Pygmy-Blue, is one of the smallest butterflies in North America. It belongs to the family Lycaenidae and is closely related to the Western Pygmy-Blue (Brephidium exilis), from which it can be distinguished by distribution and subtle morphological differences. The species is associated with coastal and salt marsh habitats in the eastern United States.
Cicindela senilis
Senile Tiger Beetle
Cicindela senilis, commonly known as the senile tiger beetle, is a species of tiger beetle endemic to western California. It inhabits specialized saline environments including tidal mud flats, coastal salt marshes, and inland salt marshes. The species is recognized to have three subspecies: C. s. senilis (nominate), C. s. exoleta, and C. s. frosti. Subspecies frosti has been documented in Lake Elsinore and several counties in southern California including Los Angeles, Orange, San Bernardino, and San Diego.
Cicindelidia trifasciata
S-banded Tiger Beetle, Ascendent Tiger Beetle (subspecies)
Cicindelidia trifasciata is a species of tiger beetle known as the S-banded Tiger Beetle, characterized by dark brown dorsal coloration and a thin, sinuous, S-shaped middle elytral maculation. The species includes a recognized subspecies, C. trifasciata ascendens (Ascendent Tiger Beetle), which inhabits coastal salt marsh environments. Adults are diurnal, extremely active and flighty, particularly in hot conditions. The species has been documented across a broad geographic range including the southern United States, Caribbean islands, and South America.
Cicindelidia trifasciata ascendens
Ascendent Tiger Beetle, Three-lined Tiger Beetle
Cicindelidia trifasciata ascendens is a subspecies of tiger beetle commonly found in coastal salt marsh habitats along the Gulf Coast of Florida. It is recognized by its dark brown dorsal coloration and distinctive thin, sinuous, S-shaped middle elytral maculation. The subspecies is notably active and flighty, particularly during hot afternoon conditions. It has been documented as far north as Missouri as a rare vagrant, but its core range centers on saline coastal wetlands from Texas through Florida.
Cicindelidia trifasciata sigmoidea
Mudflat Tiger Beetle
Cicindelidia trifasciata sigmoidea is a subspecies of the Mudflat Tiger Beetle, a member of the tiger beetle family (Cicindelidae). The species Cicindelidia trifasciata is broadly distributed across North America with multiple recognized subspecies occupying distinct geographic and habitat zones. The nominate subspecies and related forms are associated with moist, open substrates including mudflats, salt marshes, and coastal wetlands. These beetles are active predators with excellent vision and rapid running ability, characteristic of the genus.
Crematogaster pilosa
Hairy-headed Acrobat Ant
Crematogaster pilosa is a polydomous ant species native to the southern Atlantic coast of the United States and some interior areas. It forms multiple spatially separated nests per colony, typically inhabiting tidal marshes, wet meadows, and other wetland environments. The species nests in plant stems, logs, and fallen branches. Its common name 'Hairy-headed Acrobat Ant' refers to its pilose (hairy) head and the characteristic acrobat ant behavior of raising the gaster (abdomen) over the thorax when disturbed.
Diceroprocta viridifascia
salt marsh cicada, seaside cicada, Atlantic Saltmarsh Cicada
Diceroprocta viridifascia is a cicada species in the family Cicadidae, commonly known as the salt marsh cicada or seaside cicada. It is restricted to coastal salt marsh habitats in the southeastern United States. The species is named for the green fasciae (bands) on its body. Like other cicadas, it produces sound via tymbal organs for communication.
Doryodes latistriga
Doryodes latistriga is a moth in the family Erebidae described from specimens collected in coastal habitats of the northern Gulf of Mexico. It inhabits tidal creeks and salt marshes from Alabama to Louisiana. The species exhibits seasonal variation in wing coloration, with lighter spring and summer forms and darker fall and winter forms. Adults are active year-round.
Doryodes reineckei
A recently described moth species in the family Erebidae, known only from Spartina marshes along the US Gulf Coast from western Florida to eastern Texas. Described in 2015, it remains poorly known with only one iNaturalist observation recorded. The species is named in honor of USDA entomologist John P. Reinecke for his contributions to insect organ culture techniques and larval lepidopteran anatomy.
Elenchus koebelei
Elenchus koebelei is a species of twisted-wing parasite in the family Elenchidae. It is a parasitoid of Prokelisia, a genus of planthoppers in the family Delphacidae. The species has been documented in Florida salt marshes. As a member of Strepsiptera, it exhibits the extreme sexual dimorphism and endoparasitic lifestyle characteristic of this order.
Ellipsoptera hamata
Coastal Tiger Beetle, Gulf Beach Tiger Beetle
Ellipsoptera hamata is a tiger beetle species in the family Cicindelidae, commonly known as the coastal tiger beetle. It occurs along the Gulf Coast of North America from Florida to Texas, with a distribution that overlaps with its sibling species E. marginata along the lower Gulf Coast of Florida. The species inhabits coastal beaches, mud flats, and salt marshes. Four subspecies are recognized, with E. h. lacerata being the form found in Florida and along the eastern Gulf Coast.
Ellipsoptera hamata monti
Ellipsoptera hamata monti is a subspecies of the Coastal Tiger Beetle, a member of the genus Ellipsoptera characterized by relatively large eyes and long legs adapted to extreme sandy and saline habitats. As part of the E. hamata species complex, it shares the diffuse middle elytral band that distinguishes this species from congeners. The subspecies was described by Vaurie in 1951. Members of this genus are ecologically tied to coastal and saline environments with sparse vegetation.
Erythrodiplax berenice
Seaside Dragonlet
Erythrodiplax berenice, the seaside dragonlet, is a small dragonfly in the family Libellulidae. It is the only dragonfly in the western hemisphere capable of breeding in seawater, with nymphs tolerating salinities up to 260% of normal seawater concentration. The species inhabits coastal salt marshes, mangrove swamps, and alkaline lakes along the Atlantic coast of North America.
Estigmene acrea
Salt Marsh Moth, Acrea Moth
Estigmene acrea, commonly known as the salt marsh moth or acrea moth, is a native North American moth in the family Erebidae. The species is notable for its highly variable caterpillar coloration, ranging from pale yellow to dark brown or black, and its unique relationship with pyrrolizidine alkaloids—compounds it can detoxify and convert into sex pheromones. Adults display striking sexual dimorphism: males have yellow-orange hindwings while females have white hindwings, with both sexes bearing black spots. The species exhibits unusual mating behavior including male lek formation and female calling.
Eunota pamphila
Gulfshore Tiger Beetle
Eunota pamphila is a small tiger beetle species primarily associated with coastal salt marsh habitats along the Gulf of Mexico. Formerly classified under Cicindela and Habroscelimorpha, this species was historically considered rare outside its core Texas Gulf Coast range, with only occasional straggler records in adjacent states. A breeding population was documented in Mississippi coastal salt marshes during 2006–2008, establishing the species as a resident rather than vagrant in that region. The species co-occurs with other tiger beetles including Eunota togata, Ellipsoptera hamata, and Habroscelimorpha severa in suitable saline habitats.
Eunota severa
Saltmarsh Tiger Beetle
Eunota severa, commonly known as the Saltmarsh Tiger Beetle, is a species of tiger beetle in the family Carabidae (subfamily Cicindelinae). It occurs in coastal salt marsh habitats along the Gulf Coast of the United States and Mexico. The species is notable for its shiny green elytra with reduced maculations appearing as small spots at the middle and rear. It is primarily active during morning and evening hours, making it challenging to observe and photograph during midday. The species has been recorded from south Texas and Florida, where it occurs sympatrically with other salt marsh tiger beetles.
Eunota togata
White-cloaked Tiger Beetle
Eunota togata, the White-cloaked Tiger Beetle, is a species of tiger beetle in the family Cicindelidae. It was formerly classified under Cicindela but is now the sole species in the genus Eunota. The species is notable for its strong association with saline habitats, with different subspecies occupying distinct geographic regions and habitat types. Adults are small, measuring 10–13 mm in length, and exhibit variable white coloration on the elytra that gives the species its common name. The species demonstrates classic tiger beetle behaviors including rapid running, quick flight when disturbed, and visual predation.
Eunota togata togata
White-cloaked Tiger Beetle
Eunota togata togata is the nominate subspecies of the White-cloaked Tiger Beetle, occurring in salt marshes and tidal flats along the Gulf Coast of the United States and Mexico. Unlike the inland subspecies E. t. globicollis (Alkali Tiger Beetle) and E. t. fascinans (Salt Flat Tiger Beetle), this form shows the least expansion of the characteristic white elytral band that gives the species its name. The species epithet 'togata' derives from Latin 'toga,' referring to this cloaking white margin.
Gammarus mucronatus
scud
Gammarus mucronatus is a small amphipod crustacean first described in 1818. It is a dominant species in salt marsh and estuarine habitats along the North American Atlantic coast and Gulf of Mexico. The species is multivoltine, producing multiple broods per season with overlapping cohorts. It serves as an important food source for fish and other predators while contributing significantly to energy flow and nutrient cycling in coastal ecosystems.
Habronattus borealis
Boreal Paradise Spider
Habronattus borealis is a species of jumping spider in the family Salticidae, native to North America. It was first described by Nathan Banks in 1895, with earlier observations by J. H. Emerton in 1901 from salt marsh habitats in Massachusetts. The species is part of the diverse Habronattus genus, known for sexually dimorphic males with elaborate courtship displays. It inhabits ground-level environments and has been documented across Canada and the United States.
Habroscelimorpha
Habro Tiger Beetles
Habroscelimorpha is a genus of tiger beetles in the family Cicindelidae, established by Dokhtouroff in 1883. The genus historically contained approximately seven species distributed across the Neotropical and Nearctic regions, though recent taxonomic revisions have transferred most Neotropical species to other genera. Species remaining in Habroscelimorpha are primarily associated with coastal and saline habitats, including salt marshes, mud flats, and sandy beaches. Several species exhibit strong attraction to ultraviolet light, a trait that distinguishes them from many other tiger beetle genera and facilitates nocturnal observation and collection.
Languria taedata
lizard beetle
Languria taedata is a polymorphic lizard beetle species distributed along the eastern coast of North America. Adults are dark, elongate beetles measuring 9–11 mm. The species exhibits notable color variation, including a distinctive all-piceous form ('Form C') found primarily along the western Gulf Coast—the first such form documented in the genus. Larvae develop internally within stems of Spartina alterniflora, the smooth cordgrass.
Macrodiplax
Coastal Pennants
Macrodiplax is a genus of dragonflies in the family Libellulidae, commonly known as Coastal Pennants. The genus contains only two species and is distributed across tropical and subtropical regions worldwide, with the notable exception of Africa. Members of this genus are characterized by their coastal habitat preferences and distinctive wing markings.
Micronaspis
Florida intertidal firefly
Micronaspis is a monotypic genus of fireflies (Lampyridae) containing a single species, Micronaspis floridana, commonly known as the Florida intertidal firefly. This rare, endemic species is restricted to intertidal salt marsh habitats along the coast of Florida and the Bahamas. It represents a classic example of geographic isolation due to its highly specialized habitat requirements.
Micronaspis floridana
Florida Intertidal Firefly, fiddler crab firefly
Micronaspis floridana is a rare, endemic firefly restricted to intertidal salt marshes along the peninsular coast of Florida and the Bahamas. The genus is monotypic, containing only this single species. It serves as a model organism for studying genetic isolation and speciation due to its highly restricted 'shoestring' geographic distribution. The species is threatened by coastal development, storm surges, and sea level rise; Hurricane Dorian severely impacted populations on Grand Bahama island.
Minuca longisignalis
longwave gulf fiddler, Gulf Marsh Fiddler Crab
Minuca longisignalis, formerly Uca longisignalis, is a fiddler crab endemic to Gulf of Mexico salt marshes. It exhibits striking reproductive seasonality characteristic of warm-temperate lineages, with ovigerous females appearing no earlier than April and peak ovigery in June. The species constructs burrows in vegetated marsh areas, with burrow density and depth varying by elevation and distance from shoreline. It co-occurs with congeners such as Uca spinicarpa, though shows substrate preferences for different clay compositions.
Ochlerotatus cantator
brown saltmarsh mosquito
Ochlerotatus cantator, commonly known as the brown saltmarsh mosquito, is a floodplain mosquito species native to eastern North America. It was reclassified from Aedes cantator to Ochlerotatus cantator following taxonomic revision of the genus. The species is particularly abundant in coastal and inland salt marsh habitats, where it serves as a significant nuisance biter and potential disease vector.
Ochlerotatus dorsalis
Salt Marsh Mosquito
Ochlerotatus dorsalis is a Holarctic mosquito species with a transcontinental distribution spanning the Palearctic and Nearctic regions. Genetic studies have identified two highly distinctive COI mtDNA phylogroups corresponding to these regions, suggesting Pleistocene vicariance of an ancestral range due to geographical barriers and climatic changes. The species is epidemiologically relevant as a potential pathogen vector.
Ochlerotatus sollicitans
eastern saltmarsh mosquito, salt marsh mosquito
Ochlerotatus sollicitans, commonly known as the eastern saltmarsh mosquito, is a floodwater mosquito species native to coastal regions of eastern North America. It is a significant pest species known for aggressive biting behavior and daytime activity. The species is a competent vector for several arboviruses including Eastern equine encephalitis virus and West Nile virus. Its populations can explode following tidal flooding or heavy rainfall events in salt marsh habitats.
Ochlerotatus taeniorhynchus
black salt marsh mosquito
Ochlerotatus taeniorhynchus, commonly known as the black salt marsh mosquito, is a floodwater mosquito species native to coastal and salt marsh habitats across the Americas. It is a significant nuisance species and disease vector, known to transmit Dirofilaria immitis (heartworm) and susceptible to Everglades virus and Eastern Equine Encephalitis. The species has been observed expanding its range and increasing in abundance following extreme weather events such as hurricanes and flooding. Laboratory studies indicate it readily feeds on both pork and cow blood through artificial membranes, with feeding preferences varying by population.
Omus
Night-stalking Tiger Beetles
Omus is a genus of flightless, nocturnal tiger beetles (subfamily Cicindelinae) endemic to the west coast of North America. Members are uniformly dark-colored and characterized by reduced or absent hind wings, restricting them to ground-dwelling locomotion. The genus comprises at least five recognized species, including O. audouini, O. californicus, O. cazieri, O. dejeanii, and O. submetallicus. These beetles occupy diverse habitats from forest floors to upper salt marshes, with some species showing strong associations with specific plant communities.
flightlessnocturnalwest-coast-endemictiger-beetlesalt-marshforest-floorprolonged-copulationconservation-concernCanada-species-at-riskmorphological-character-displacementAmblycheiliniCicindelinaeCarabidaeColeopteralarval-burrowsDouglas-aster-indicator-speciesniche-partitioningmale-mandible-dimorphismsyn-copulatory-courtshiprain-shadow-habitatSierra-NevadaCascade-RangeCoast-RangeBritish-ColumbiaOregonCaliforniaWashingtonOmus audouini
Audouin's Night-stalking Tiger Beetle
Omus audouini, commonly known as Audouin's Night-stalking Tiger Beetle, is a nocturnal tiger beetle species in the family Cicindelidae. It exhibits pronounced sexual size dimorphism with females larger than males, and possesses mandibles that serve dual functions for prey capture and mating amplexus. The species shows niche partitioning with sympatric O. dejeanii through body size and mandible length differences following Hutchinsonian Ratios. It is of conservation concern in Canada due to its extremely limited distribution.
Palaemon pugio
daggerblade grass shrimp
Palaemon pugio, commonly known as the daggerblade grass shrimp, is a small, transparent caridean shrimp native to estuarine and tidal marsh habitats of the western Atlantic Ocean and Gulf of Mexico. Adults reach approximately 5 cm in length and exhibit yellow coloration with brownish spots. This species serves as an important ecological component in salt marsh food webs, accounting for a substantial portion of nekton biomass and functioning as prey for commercially important fish species. The species has become a standard test organism in toxicological research due to its sensitivity to environmental pollutants.
Panoquina panoquinoides
obscure skipper, beach skipper
Panoquina panoquinoides, commonly called the obscure skipper or beach skipper, is a grass skipper butterfly in the family Hesperiidae. It occurs across a broad geographic range spanning the Caribbean Sea, North America, and South America. The species is recognized as a coastal specialist with four described subspecies.
Peoria gematella
Gemmed Cordgrass Borer
Peoria gematella, commonly known as the Gemmed Cordgrass Borer, is a species of snout moth in the family Pyralidae. The species is associated with cordgrass habitats, as indicated by its common name. As a member of the genus Peoria, it belongs to a group of small moths whose larvae are typically borers in plant stems or roots.
Philaenarcys spartina
Salt Marsh Spittlebug
Philaenarcys spartina is a spittlebug species in the family Aphrophoridae, first described by Hamilton in 1979. It is associated with salt marsh habitats, specifically with Spartina grasses, as indicated by its specific epithet. The species has been recorded in eastern Canada including New Brunswick, Nova Scotia, and Québec. As a member of the spittlebug family, it likely produces characteristic frothy spittle masses as nymphs, though specific life history details remain poorly documented.
Photuris salina
Salt marsh firefly
Photuris salina is a species of firefly in the family Lampyridae, described by Barber in 1951. As a member of the genus Photuris, it is likely predatory in both larval and adult stages, though specific behavioral details remain undocumented. The species is associated with salt marsh habitats, as indicated by its specific epithet and common name. Like other Photuris species, it possesses bioluminescent capabilities used for communication, though its precise flash pattern has not been formally described.
Pogonini
Pogonini is a tribe of ground beetles (Carabidae: Trechinae) comprising approximately 12 genera and more than 80 described species, with the genus Pogonus containing over half of all species. Members are strongly associated with saline environments, occurring in inland salt flats and along ocean coastlines. The tribe shows strong geographic regionalization, with distinct faunas in the New World (8 recognized species) and the Ibero-Balearic region (11 species across 3 genera).
Pogonus
Pogonus is a genus of ground beetles (family Carabidae) comprising over 50 described species with a worldwide distribution. The genus is classified within the tribe Pogonini and subfamily Trechinae. At least one species, Pogonus chalceus, has been studied for genetic differentiation and local adaptation in salt-marsh environments. The genus shows genetic population structure across geographic regions, with evidence of adaptive divergence between habitats.
Prokelisia
delphacid planthoppers
Prokelisia is a genus of delphacid planthoppers in the family Delphacidae, containing approximately five described species. The genus is best known for P. marginata, a salt marsh specialist that exhibits striking wing dimorphism with flightless brachypter and fully winged macropter forms. These planthoppers feed on Spartina cordgrasses and serve as hosts for diverse parasitoid communities including egg parasitoids (Anagrus spp.), nymphal parasitoids (Gonatopus, Neon), and adult parasitoids (Eurypteryx). The genus has become a model system for studying the evolution and maintenance of dispersal polymorphisms in heterogeneous environments.
Prokelisia carolae
Prokelisia carolae is a species of planthopper in the family Delphacidae, described by Wilson in 1982. It belongs to a genus of small, delicate planthoppers associated with salt marsh and coastal habitats. The species is part of the economically important group of planthoppers that includes vectors of plant pathogens.
Prokelisia crocea
Prokelisia crocea is a delphacid planthopper species in the family Delphacidae, characterized by its association with salt marsh and coastal wetland habitats. The species was originally described by Van Duzee in 1897 as Kelisia crocea before being transferred to the genus Prokelisia. It is distributed across eastern and central North America, with records from Arizona, Arkansas, Colorado, Connecticut, and Delaware.
Prokelisia dolus
Prokelisia dolus is a delphacid planthopper species inhabiting salt marsh environments in North America. The species has been characterized by a polygynous mating system in which males may copulate with multiple females while females typically mate once. Sexual receptivity in females is triggered by a substance in male ejaculate, with receptivity onset occurring approximately 48 hours post-eclosion. The species serves as host for nymphal and adult parasites, with parasitism rates documented in field studies.
Prokelisia marginata
Prokelisia marginata is a wing-dimorphic delphacid planthopper native to North American salt marshes, where it feeds on phloem sap of Spartina grasses. Populations contain two distinct adult forms: flightless brachypters and fully-winged macropters capable of dispersal flight. Wing-form is determined environmentally during nymphal development, primarily by crowding density and host plant quality, representing a conditional strategy that balances local reproduction against habitat tracking. The species has established invasive populations in Britain, where it exploits the introduced cordgrass Spartina anglica.
Pyractomena ecostata
Keel-necked firefly
Pyractomena ecostata, the keel-necked firefly, is an endangered firefly species endemic to the United States with a highly disjunct distribution. It occurs in two widely separated coastal regions: the Mobile Bay area of Alabama east through peninsular Florida, and saltmarshes surrounding Delaware Bay and Cape May in Delaware and New Jersey. This species is restricted to brackish habitats, particularly those receiving saltwater intrusion, and faces severe threats from coastal development, sea level rise, invasive vegetation, and light pollution.
Scrobipalpa obsoletella
summer groundling
Scrobipalpa obsoletella, commonly known as the summer groundling, is a small gelechiid moth with a wingspan of 12–14 mm. The species has a broad distribution spanning Europe, Turkey, the Caucasus, Iran through Asian Russia to Mongolia, with introduced populations in New Zealand, South Africa, and North America. It is associated with coastal salt marshes and sandy beaches, where its larvae feed on Atriplex and Chenopodium species. Adults are active from May to August, with larvae present from June to July and again in September.
Spartidelphax
Spartidelphax is a genus of planthoppers in the family Delphacidae, established in 2014 to accommodate species associated with cordgrass (Spartina) in coastal salt marsh habitats. The genus was erected following taxonomic revision of the Delphacodes group, recognizing distinct morphological and ecological characteristics that separate it from related genera. Members are small, brachypterous or macropterous insects with the characteristic enlarged hind femora and movable spur on the hind tibia typical of delphacid planthoppers.
Spartidelphax detectus
Spartidelphax detectus is a species of planthopper in the family Delphacidae, first described by Van Duzee in 1897. It belongs to a genus associated with spartina grasses in coastal salt marsh habitats. The species has been recorded from multiple states along the Atlantic and Gulf coasts of the United States.
Sphaeroma
pillbug, roly poly, marine pillbug
Sphaeroma is a genus of aquatic isopod crustaceans in the family Sphaeromatidae. These small crustaceans are commonly known as marine pillbugs or roly polies, though they are distinct from terrestrial isopods. The genus contains multiple species distributed across marine and estuarine environments globally. Some species, such as S. terebrans, are specialized wood-borers in mangrove habitats, while others inhabit rocky intertidal zones or construct burrows in soft sediments. The genus has been subject to recent taxonomic revision, with new species described from the northeastern Pacific and elsewhere.
Tabanus conterminus
Tabanus conterminus is a species of horse fly in the family Tabanidae, originally described by Walker in 1850. The species is associated with salt marsh habitats in eastern coastal North America. It has been subject to taxonomic revision, with a lectotype designated to clarify its nomenclatural status relative to other coastal horse flies such as Tabanus nigrovittatus.
Tabanus nigrovittatus
greenhead horse fly, salt marsh greenhead, greenhead fly, greenhead, greenfly
Tabanus nigrovittatus, commonly known as the greenhead horse fly or salt marsh greenhead, is a biting horse fly species endemic to coastal salt marshes of the eastern United States. Adult females are aggressive blood-feeders that require vertebrate blood for egg production, while males do not feed on blood. The species is smaller than most horse flies, approximately the size of a house fly. Larvae develop in intertidal salt marsh mud for one to two years, preying on other invertebrates. Adults emerge in late spring and are most active from late June through August. The species is a significant human and animal pest, with populations managed through black box traps rather than insecticides due to ecological concerns.
Tetracha floridana
Florida metallic tiger beetle, Florida big-headed tiger beetle
Tetracha floridana is a Florida endemic tiger beetle restricted to coastal salt marsh and mudflat habitats along the Gulf coast from Dixie County to the Florida Keys. Adults are strictly nocturnal and exhibit the characteristic metallic green to dark green elytra and enlarged head of the genus. The species was elevated from subspecies status in 2007 based on distinct morphological characters. Larvae inhabit burrows in dry ground adjacent to coastal marshes and can be distinguished from related genera by simple, thorn-like hooks on the fifth abdominal segment.
Trichocorixa
water boatmen
Trichocorixa is a genus of water boatmen in the family Corixidae comprising approximately 14 described species. Members of this genus are notable for their exceptional tolerance of saline and hypersaline habitats, ranging from brackish coastal marshes to salt ponds with salinities exceeding 150‰. Several species have become invasive outside their native ranges, with documented ecological impacts through predation on brine shrimp and other zooplankton. The genus exhibits complex life history adaptations including staggered egg hatching, salinity-dependent embryonic development, and overwintering strategies that vary among species and populations.
Trichocorixa reticulata
water boatman
Trichocorixa reticulata is a water boatman (family Corixidae) inhabiting saline and hypersaline aquatic environments. The species exhibits exceptional osmotic tolerance, surviving salinities from freshwater to full seawater (~3.5%). Populations show synchronized annual breeding cycles with peak reproduction in May-July. Females are larger than males, and eggs are deposited on solid substrates including algae and pool surfaces. Both adults and nymphs function as predators and scavengers.
Trichocorixa verticalis
water boatman
Trichocorixa verticalis is a small water boatman (Corixidae) native to North America and the Caribbean, now established as an invasive species in Europe, Morocco, South Africa, and New Caledonia. It is exceptionally euryhaline, inhabiting brackish waters, saline ponds, coastal wetlands, and open marine environments—unusual for a corixid. The species overwinters as diapausing eggs and has demonstrated significant ecological impacts in invaded habitats, including dominance over native corixids and trophic cascades affecting phytoplankton abundance through predation on zooplankton.
Tumidagena
Tumidagena is a genus of small, flightless delphacid planthoppers comprising at least three described species. The best-studied species, T. minuta, is a specialist herbivore of the salt marsh grass Spartina patens in eastern North America. Despite being predominantly flightless (>99% of adults), populations exhibit high gene flow and weak genetic differentiation over distances exceeding 400 km, suggesting mechanisms other than adult flight maintain connectivity.
Uca minax
red-jointed fiddler crab, brackish-water fiddler crab
Minuca minax is a fiddler crab species distinguished by its tolerance for low-salinity and freshwater habitats, extending farther inland than most congeners. Males possess one greatly enlarged claw with red joints, the source of its common name. Formerly classified in genus Uca, it was transferred to Minuca in 2016. The species is abundant in salt marshes and tidal streams along the U.S. Atlantic and Gulf coasts, with documented populations occurring more than 50 km from the sea.
Uca pugnax
Atlantic marsh fiddler crab, mud fiddler crab, Atlantic mud fiddler crab, marsh fiddler crab
Minuca pugnax is a small intertidal crab native to Atlantic coast salt marshes of North America. Males possess one dramatically enlarged yellow claw used for signaling and combat, while females have two small claws. The species exhibits sexual dimorphism in body size and coloration. It constructs burrows in muddy substrates and has been observed in both low-marsh and, more recently, high-marsh habitats. Larval development includes five zoeal stages and one megalopal stage before settlement.
Uhlorchestia
beach hoppers
Uhlorchestia is a genus of talitrid amphipods endemic to salt marshes along the Atlantic coast of North America. The genus contains two described species: U. spartinophila and U. uhleri. These amphipods are closely associated with smooth cordgrass (Spartina alterniflora) and function as detritivores in salt marsh ecosystems. Population studies indicate high turnover rates and year-round reproduction with seasonal peaks.