Coastal
Guides
Coptodisca sp. (Conocarpus erectus)
An undescribed species of Coptodisca (family Heliozelidae) that develops as a leaf miner on Conocarpus erectus (button mangrove). The species remains formally unnamed but has been documented from field collections. Heliozelid moths in this genus are characteristically small, with larvae that create distinctive blotch or serpentine mines in host leaves. This species represents part of the poorly known Neotropical heliozelid fauna associated with coastal mangrove vegetation.
Coryphaeschna viriditas
Mangrove Darner
Coryphaeschna viriditas, commonly known as the mangrove darner, is a dragonfly species in the family Aeshnidae. It inhabits coastal and wetland environments across the Americas, with a broad distribution spanning the Caribbean, Central America, North America, and South America. The species is classified as Least Concern by the IUCN, with a stable population and no immediate threats identified.
Ctenodactylomyia watsoni
Sea Grape Gall Midge
Ctenodactylomyia watsoni is a gall midge species in the family Cecidomyiidae, commonly known as the Sea Grape Gall Midge. It induces galls on sea grape (Coccoloba uvifera), a coastal shrub native to tropical and subtropical regions of the Americas. The species is well-documented through iNaturalist observations, with over 790 records, indicating it is relatively common and readily observed by naturalists in its range. As a gall-forming insect, it manipulates host plant tissue to create protected structures for larval development.
Detonidae
woodlice
Detonidae is a family of terrestrial isopods (woodlice) in the order Isopoda, containing at least 3 genera and more than 30 described species. Members of this family are primarily coastal, inhabiting upper intertidal and supratidal zones of rocky shores. The genus Deto includes species with complex taxonomic histories and documented cases of cryptic diversity, such as Deto echinata in southern Africa.
Diceroprocta bequaerti
Gulf Saltmarsh Cicada
Diceroprocta bequaerti is a species of annual cicada in the family Cicadidae, native to North America. It is one of several Diceroprocta species found in the southern United States, where it inhabits coastal and near-coastal environments. Like other cicadas in this genus, it produces sound through tymbal organs to attract mates. The species was described by William T. Davis in 1917.
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.
Dicraeus
Dicraeus is a genus of small flies in the family Chloropidae, first described by Loew in 1873. Species within this genus exhibit specialized feeding habits, with some species feeding on bamboo flowers and others developing as seed predators in grasses. The genus shows notable host specificity, with oviposition behavior influenced by host plant morphology such as glume pubescence. Population genetic studies in Japanese species reveal contrasting patterns of genetic structure correlated with host plant flowering phenology.
Diplocheta
Rock Slaters
Diplocheta is an infraorder of terrestrial isopods commonly known as rock slaters. Members of this group are adapted to coastal and intertidal environments, showing morphological specializations for life in these habitats. The group was established by Vandel in 1957 and includes the family Ligiidae. These isopods represent an evolutionary transition between fully marine and fully terrestrial lifestyles.
Dorymyrmex bureni
Buren's Pyramid Ant, Pyramid Ant
Dorymyrmex bureni is a medium-sized ant species in the genus Dorymyrmex, commonly known as pyramid ants. Described by Trager in 1988, this species is native to the Atlantic Coastal Plain of the southeastern United States. Workers are light orange, fast-moving, and range 2–4 mm in length. The species is distinguished by its crater-shaped nest mounds in sandy soil and a characteristic coconut-like odor emitted when crushed. Unlike the aggressive red imported fire ant (Solenopsis invicta), D. bureni is relatively harmless to humans and lacks a functional sting.
Doryodes fusselli
Doryodes fusselli is a moth species in the family Erebidae, described in 2015 from coastal North Carolina. It is distinguished from congeners by a combination of forewing stripe width, body size, and hindwing coloration. Adults are active from spring through fall, with seasonal size variation in males. Larvae have been successfully reared on Spartina alterniflora and Bermuda grass.
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.
Drasteria graphica
Graphic Moth, Coastal Graphic
Drasteria graphica is a day-flying moth in the family Erebidae, found in coastal dune habitats along the Atlantic seaboard and Great Lakes shores. Adults have a wingspan of 30–35 mm and are active from May to August. The subspecies D. g. atlantica is listed as threatened in Connecticut.
Eleodes scabrosa
desert beetle
Eleodes scabrosa is a darkling beetle (family Tenebrionidae) native to western North America, ranging from Washington state to Mexico. The species exhibits notable habitat flexibility, occurring on temperate beaches in the northern part of its range and in desert environments farther south, with coastal preferences persisting throughout. Its black coloration and textured abdomen are characteristic of the genus Eleodes.
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.
Ephelinus
Ephelinus is a genus of rove beetles (Staphylinidae) in the subfamily Omaliinae, described by Cockerell in 1906. The genus belongs to the tribe Coryphiini and is characterized by small body size and association with coastal or intertidal habitats. Species in this genus are poorly documented, with limited ecological and behavioral information available.
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.
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.
Euxoa aurulenta
Dune Cutworm Moth, dune cutworm
Euxoa aurulenta, the dune cutworm, is a noctuid moth species described by Smith in 1888. It is distributed across central and western North America, with adults active from May to July. The species has a single annual generation and is associated with dune grass habitats. The larvae are suspected to feed on beach grasses including Ammophila breviligulata and Calmovilfa longifolia.
Fucellia
seaweed flies
Fucellia is a genus of true flies (Diptera) in the family Anthomyiidae, commonly known as seaweed flies. The genus comprises at least 20 described species that inhabit marine and coastal environments, particularly in association with seaweed. Several species have been studied for their potential use in aquaculture feed due to their fatty acid profiles and protein content.
Garypus
Garypus is a genus of pseudoscorpions in the family Garypidae, comprising at least 20 described species. These arachnids are primarily restricted to seashore habitats, occupying supralittoral and littoral zones in tropical and subtropical regions. The genus was established by Ludwig Carl Christian Koch in 1873 and shows highest diversity in the Indo-West Pacific region. Species-level taxonomy remains incompletely resolved, with many species known from single localities.
Gnorimoschema salinaris
Gnorimoschema salinaris is a small moth in the family Gelechiidae, described by August Busck in 1911. It is found in eastern and central North America, with records from Florida to Maine and west to Illinois and Michigan. The species is closely related to Gnorimoschema gallaesolidaginis, sharing similar wing patterns but differing in specific markings. Its larvae form galls on the stalks of seaside goldenrod (Solidago sempervirens).
Gnorimoschema terracottella
Gnorimoschema terracottella is a small gelechiid moth described by August Busck in 1900. The species is characterized by distinctive reddish-brown forewings with complex white patterning and dark dusting. Its larvae are leaf miners on Iva imbricata, a composite plant in the southeastern United States. The species is known from only two states, Florida and Alabama, and is one of approximately 100 described species in the genus Gnorimoschema.
Gronocarus inornatus
lobeless spiny burrowing beetle
Gronocarus inornatus is a small scarab beetle described by Skelley in 2003. It is endemic to a restricted coastal region of the Florida panhandle. The species is characterized by its glabrous, shining brown body and moderately elongate form. It is known by the common name 'lobeless spiny burrowing beetle,' though detailed ecological data remain limited.
Habronattus californicus
Habronattus californicus is a species of jumping spider in the family Salticidae. It is native to western North America, occurring in California and the Baja California Peninsula in Mexico. Like other members of the genus Habronattus, males likely possess elaborate courtship displays involving visual and acoustic signals. The genus is known for having some of the most complex multimodal courtship behaviors among terrestrial invertebrates.
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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.
Habroscelimorpha dorsalis
Eastern Beach Tiger Beetle
Habroscelimorpha dorsalis, the eastern beach tiger beetle, is a coastal tiger beetle species found on sandy beaches along the Atlantic and Gulf coasts of North America, ranging from the northeastern United States through Florida and into Mexico. Adults are active during summer months, foraging in intertidal zones for small invertebrates. The species has a two-year life cycle with larvae that construct vertical burrows in beach sand. One subspecies, H. d. dorsalis (Northeastern beach tiger beetle), is federally listed as threatened due to habitat loss from coastal development and recreational disturbance.
Habroscelimorpha dorsalis dorsalis
Northeastern Beach Tiger Beetle
The Northeastern Beach Tiger Beetle is the largest subspecies of Habroscelimorpha dorsalis, endemic to sandy Atlantic coast beaches of the northeastern United States. Listed as threatened under the U.S. Endangered Species Act since 1990, this diurnal predator has experienced severe population declines due to habitat loss from coastal erosion, shoreline development, and human recreational activity. Adults are active from mid-June through July, while larvae overwinter in deep sand burrows. The species serves as an indicator of beach ecosystem health and requires specific habitat conditions including medium-coarse sand and minimum beach widths of 6.5 feet for successful reproduction.
Habroscelimorpha dorsalis venusta
Gulf Beach Tiger Beetle
Habroscelimorpha dorsalis venusta, commonly known as the Gulf Beach Tiger Beetle, is a subspecies of tiger beetle in the family Carabidae (subfamily Cicindelinae). It is one of several subspecies within the Habroscelimorpha dorsalis species complex. Tiger beetles in this genus are typically associated with sandy coastal habitats. The specific epithet 'venusta' suggests an attractive or elegant appearance, consistent with the often colorful and patterned nature of tiger beetles in this group.
Hakka
Hakka is a monotypic genus of jumping spiders (family Salticidae) established by Berry & Prószyński in 2001. The genus contains a single species, Hakka himeshimensis, native to East Asia with introduced populations in the United States. These spiders inhabit rocky coastal environments and possess the characteristic visual acuity and saltatory locomotion typical of salticids.
Hakka himeshimensis
Hakka himeshimensis is a small jumping spider (Salticidae) native to East Asia and introduced to the eastern United States, likely via maritime shipping. It is the sole species in the monotypic genus Hakka. Both sexes measure approximately 7 mm in body length with uniformly dark brown coloration. The species shows a strong preference for rocky coastal habitats.
Halocoryza
Halocoryza is a genus of small, intertidal ground beetles (Carabidae) restricted to tropical and subtropical coastal habitats. The genus comprises four described species distributed across shorelines of the Atlantic, Pacific, and Indian Oceans, including Caribbean islands and the Gulf of Mexico. All species are nocturnal predators associated with sandy or coralline substrates near mangroves, coral reefs, or seaweed accumulations. The genus is characterized by reduced flight capability, slow running speed, and adaptations for burrowing in coastal sediments.
Hexeris
Hexeris is a genus of moths in the family Thyrididae. The genus includes the seagrape borer (Hexeris enhydris), a species native to Florida and the Caribbean whose larvae bore into twigs of seagrape and pigeon-plum.
Hippolytidae
broken-back shrimp, cleaner shrimp, anemone shrimp, hump-backed shrimps
Hippolytidae is a family of marine caridean shrimp commonly known as broken-back shrimp, cleaner shrimp, or anemone shrimp. The family was redefined in 2023, with several former genera transferred to other families (Bythocariidae, Lysmatidae, Merguiidae, Thoridae), leaving 16 genera in Hippolytidae sensu stricto. Some members engage in cleaning symbiosis with fish, removing parasites and debris from host bodies. The family shows both diurnal and nocturnal activity patterns, with behavioral differences in cleaning site preferences.
Homaledra octagonella
Octagonal Casemaker Moth
Homaledra octagonella is a small moth species in the family Pterolonchidae, commonly known as the Octagonal Casemaker Moth. The species was described by Walsingham in 1882. Members of this genus are known for constructing distinctive larval cases from plant material. The family placement has been subject to taxonomic revision, with some sources historically placing it in Coleophoridae.
Hypocaccini
Hypocaccini is a tribe of clown beetles (Histeridae: Saprininae) distributed across the Arabo-Saharan region. Members include psammophilous genera such as Hypocaccus, Exaesiopus, and Neopachylopus, which are adapted to sandy coastal habitats. Recent taxonomic work has described new species from the Arabian Peninsula and Algerian Sahara, expanding the known diversity of this group.
Hypocharassus
Hypocharassus is a genus of long-legged flies (Dolichopodidae) comprising five described species distributed across the Nearctic, Oriental, and Palearctic regions. The genus is the sole member of the tribe Hypocharassini within subfamily Hydrophorinae. Species are associated with marine and coastal habitats, with adults flying low over wet sand and larvae inhabiting intertidal zones. The Korean species H. cavitarsus represents the first Palearctic record, expanding the genus's known range.
Hypocoena rufostrigata
Brown-streaked Rustic Moth
Hypocoena rufostrigata, commonly known as the Brown-streaked Rustic Moth, is a noctuid moth species first described by Alpheus Spring Packard in 1867. It is a North American species with a broad geographic range spanning from the Atlantic coast to Alaska and western North America. Adults have a wingspan of 26–30 mm and are active during summer months.
Junonia neildi
West Indian Mangrove Buckeye
Junonia neildi, the West Indian Mangrove Buckeye, is a butterfly species in the family Nymphalidae. It was elevated from subspecies status under Junonia genoveva to full species rank in 2004. The species occurs in coastal regions of the southeastern United States, Mexico, and the Caribbean. It is one of three Junonia species currently documented in Florida, alongside J. coenia and J. zonalis.
Junonia stemosa
twintip buckeye
Junonia stemosa, the twintip buckeye, is a butterfly species described in 2020 following genomic revision of North American Junonia. It is endemic to southern Texas, particularly coastal barrier islands, where it specializes on Stemodia tomentosa as its exclusive larval host plant. The species maintains genetic integrity despite occurring in sympatry with related buckeyes, and its distribution is tightly linked to the patchy occurrence of its host plant in sandy coastal habitats.
Littorophiloscia richardsonae
Western Saltmarsh Woodlouse
Littorophiloscia richardsonae is a small terrestrial isopod commonly known as the Western Saltmarsh Woodlouse. It belongs to the family Halophilosciidae and has been documented primarily in coastal saltmarsh habitats of western North America. The species was described in 1909 and represents one of the few truly halophilic (salt-tolerant) woodlice in the region.
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.
Megachile pruina
Hoary Leafcutter Bee
Megachile pruina, commonly known as the Hoary Leafcutter Bee, is a solitary leafcutter bee in the family Megachilidae. It is medium-sized (11–13 mm) and exhibits sexual dichromatism, with females often appearing very dark. The species occurs along coastal habitats from Virginia to Florida and westward to Texas, with an isolated population in Bermuda that represents a genetically distinct evolutionary lineage. Bermuda's population is classified as Vulnerable and is the only arthropod protected under the Bermuda Protected Species Act.
Melieria cana
Melieria cana is a species of ulidiid fly, commonly known as a picture-winged fly. It belongs to the genus Melieria within the family Ulidiidae. The species has been documented in coastal regions of England and has presence records in the conterminous United States, with additional distribution data from Denmark and Norway.
Mermiria intertexta
Coastal Toothpick Grasshopper, Eastern Mermiria
Mermiria intertexta, commonly known as the Coastal Toothpick Grasshopper or Eastern Mermiria, is a slant-faced grasshopper in the family Acrididae. It is distributed along the Atlantic and Gulf coasts of the eastern United States. The species belongs to the genus Mermiria, which includes several closely related slant-faced grasshoppers found in North American grasslands.
Mogoplistidae
Scaly Crickets and Allies
Mogoplistidae is a family of scaly crickets within the superfamily Grylloidea, comprising over 370 species in approximately 30 genera worldwide. The family is considered monophyletic and sister to the true crickets (Gryllidae). Members are distinguished by scales covering the abdomen and parts of the thorax, resembling those of Lepidoptera. The family includes three subfamilies: Mogoplistinae, Malgasiinae (restricted to Madagascar and Indian Ocean islands), and the extinct †Protomogoplistinae known from Burmese amber.
OrthopteraGrylloideascaly-cricketscoastalbeach-specialistdriftwood-dependentrare-speciesUK-protected-speciesMediterraneanAtlantic-coastMadagascar-endemicBurmese-amber-fossilscale-coveringLepidoptera-like-scalesomnivorousnocturnallong-ovipositoregg-development-one-yearshingle-habitatcobble-beachesstrandline-invertebrateconservation-concernbeach-cleaning-threatdriftwood-burning-threatNaemia seriata litigiosa
Western Seaside Lady Beetle
Naemia seriata litigiosa is a subspecies of lady beetle (Coccinellidae) known as the Western Seaside Lady Beetle. It is distributed in coastal regions of western North America and the Caribbean. The species belongs to a small genus of lady beetles associated with saline and coastal environments.
Nanomyina
Nanomyina is a monotypic genus of long-legged flies in the family Dolichopodidae, containing only Nanomyina barbata. The genus was established by Harold E. Robinson in 1964. The single species is distinguished by conspicuous bristles on the lower face, referenced in its specific epithet "barbata" (Latin for "bearded").