Sand-dwelling
Guides
Acanthametropodidae
Acanthametropodidae is a family of sand-dwelling mayflies (Ephemeroptera) in the suborder Pisciforma. The family contains at least two genera—Acanthametropus and Analetris—with four described species. These insects are specialized for life in sandy substrates, a relatively uncommon habitat among mayflies.
Allocosa
Allocosa is a genus of wolf spiders (family Lycosidae) comprising over 130 described species with a distribution centered in the Americas. The genus was established by Nathan Banks in 1900 and has been the subject of taxonomic revision, with African species assignments remaining uncertain and requiring re-examination. Several well-studied species, including Allocosa brasiliensis, A. alticeps, and A. senex, exhibit notable sex-role reversal in mating systems, where females actively seek male burrows and initiate courtship. These spiders are ground-dwelling burrowers, often inhabiting sandy coastal or dune environments.
Amblyderus pallens
pale ant-like flower beetle
Amblyderus pallens is a small, flightless ant-like flower beetle in the family Anthicidae. It is restricted to dune and sandy beach habitats across central and eastern North America, with a notable absence from western regions. The species is considered critically imperiled in Saskatchewan and Manitoba, Canada. Adults are active primarily during warmer months but have been observed in winter in some areas.
Ammobaenetes
sand-treader crickets
Ammobaenetes is a genus of sand-treader crickets in the family Rhaphidophoridae, first described by Hubbell in 1936. The genus contains at least three to four described species distributed in arid regions of the southwestern United States. Members are specialized for life in sandy desert habitats, with morphological adaptations for burrowing and moving through loose sand. The genus is placed in the tribe Daihiniini within the subfamily Ceuthophilinae.
Analetris
Analetris is a genus of sand-dwelling mayflies in the family Acanthametropodidae, established by Edmunds in 1972. The genus contains at least two species: the extant Analetris eximia and the extinct †Analetris secundus. Members of this genus are specialized inhabitants of riverine environments with unstable silty substrates. The best-studied species, A. eximia, is considered endangered due to habitat destruction from reservoir construction.
Anillinus arenicollis
Anillinus arenicollis is a species of minute ground beetle in the family Carabidae. It belongs to a genus of small, often eyeless or reduced-eyed beetles adapted to subterranean or soil-dwelling habits. The species epithet 'arenicollis' suggests association with sandy habitats. Members of Anillinus are among the smallest carabid beetles and are poorly known due to their cryptic lifestyle.
Arctosa perita
Sand Bear Spider
Arctosa perita is a wolf spider in the family Lycosidae, commonly known as the sand bear spider. It is native to Europe, North Africa, Turkey, the Caucasus, and Russia, and has been introduced to Canada. The species is adapted to dry, sandy habitats where it constructs burrows.
Asbolus papillosus
Asbolus papillosus is a darkling beetle (family Tenebrionidae) native to the southwestern United States and northwestern Mexico. It inhabits arid, sandy environments including the Sonoran Desert. The species is distinguished from congeners by its granular elytra and relatively short tarsal hairs. Like other members of the genus, it likely exhibits thanatosis (death-feigning behavior) as an antipredator defense, though this has not been specifically documented for this species.
Baetisca
armored mayflies
Baetisca is a genus of armored mayflies comprising approximately 12 described species in the family Baetiscidae. Nymphs are distinguished by their construction of protective cases from sand grains and silk. The genus is found in small, cool streams across eastern and central North America, with some species extending into western Canada. Most studied species exhibit univoltine life cycles with winter nymphal growth and spring or early summer adult emergence.
Behningiidae
Sand-burrowing Mayflies, Tuskless Burrowing Mayflies
Behningiidae is a small, primitive family of burrowing mayflies with four described genera: three extant (Behningia, Dolania, Protobehningia) and one fossil (†Archaeobehningia). Nymphs inhabit sandy river sediments but lack the tusk-like mandibular projections typical of other burrowing mayfly families. The family has a Holarctic distribution, with Dolania occurring in North America and the remaining genera in northern Europe and Asia. Members are rarely collected due to their subterranean lifestyle.
Bembicini
Sand Wasps
Bembicini is a large tribe of solitary wasps commonly known as sand wasps, comprising approximately 20 genera distributed across multiple subtribes. These wasps are characterized by their ground-nesting behavior in sandy substrates and their role as predators provisioning nests with paralyzed insect prey. The tribe exhibits notable diversity in prey preferences, with most genera specializing on particular insect orders—most commonly Diptera, though some target Hemiptera, Orthoptera, or other groups. Many species form dense nesting aggregations where numerous females excavate burrows in close proximity, creating conspicuous colonies that attract specialized parasites and cleptoparasites.
Brachynemurus abdominalis
Brachynemurus abdominalis is a species of antlion in the family Myrmeleontidae. It is one of 18 genera of antlions recorded north of Mexico. The species was originally described as Myrmeleon abdominalis by Thomas Say in 1823. Like other antlions, it undergoes complete metamorphosis with a predatory larval stage and a delicate, lacy-winged adult stage.
Brasiella
Brasiella is a genus of small to very small tiger beetles (Cicindelidae) containing more than 50 described species. Formerly treated as a subgenus of Cicindela, it is now recognized as a distinct genus based on morphological and behavioral differences. The genus is predominantly Neotropical in distribution, with species occurring from Panama and the West Indies south to Peru and Argentina. Most species are cursorial (running) beetles adapted to open, sandy or muddy habitats. Brasiella argentata is among the most common and widespread species, though it appears to represent a species complex distinguishable primarily by male genitalic characters.
Caelius humeralis
Caelius humeralis is a species of scarab beetle in the family Scarabaeidae, subfamily Aegialiinae. Described by Brown in 1931, this small beetle is part of a genus associated with sandy habitats. The species is known from scattered records across northeastern North America.
Cicindelidia scabrosa
Scabrous Tiger Beetle
Cicindelidia scabrosa is a near-endemic tiger beetle species found primarily in peninsular Florida, with its range extending slightly into extreme southeastern Georgia. It belongs to the abdominalis species-group, characterized by small size, sand-dwelling habits, and red abdominal coloration visible during flight. The species is distinguished by its black, deeply punctured elytra and dense bands of white setae along the lateral pronotal margins. Adults are active during summer months, particularly July and August, in sand pine scrub habitats.
Clathroneuria
Clathroneuria is a genus of antlions in the family Myrmeleontidae, established by Banks in 1913. The genus contains five described species distributed in North America. Species were described between 1898 and 1970, with several named by Banks in 1938. Like other antlions, adults are aerial predators while larvae are ground-dwelling predators that construct pit traps to capture prey.
Coelioxys slossoni arenicola
Coelioxys slossoni arenicola is a subspecies of kleptoparasitic bee in the family Megachilidae, described by Crawford in 1914. Like other members of the genus Coelioxys, this subspecies is a brood parasite (cuckoo bee) that exploits the nest provisions of host bees rather than constructing its own nests. The subspecies epithet 'arenicola' suggests an association with sandy habitats. It occurs in Middle America and North America based on distribution records.
Edrotes rotundus
Edrotes rotundus is a species of darkling beetle in the family Tenebrionidae. It is native to North America and has been documented in the southwestern United States and Mexico. The genus Edrotes is characterized by small, rounded body forms adapted to arid environments. Records from Colorado represent range extensions beyond the species' previously documented distribution.
Ellipes minuta
Smaller Sand Cricket
Ellipes minuta, commonly known as the Smaller Sand Cricket, is a species of pygmy mole cricket in the family Tridactylidae. This small orthopteran is adapted for burrowing in sandy substrates, with modified forelegs for digging. The species occurs across a broad geographic range including parts of North, Central, and South America. Like other members of the genus Ellipes, it inhabits moist sandy areas near water bodies where it can burrow and feed.
Eremoblatta
sand cockroaches
Eremoblatta is a genus of sand cockroaches in the family Corydiidae (formerly Polyphagidae). These cockroaches are adapted to arid, sandy environments. The genus was established by Rehn in 1903. Records indicate presence in the southwestern United States and northwestern Mexico.
Eusattus
sand darkling beetle
Eusattus is a genus of darkling beetles in the family Tenebrionidae, established by J.L. LeConte in 1851. Species within this genus are associated with sandy habitats in western North America. The genus is represented by at least one well-documented species, Eusattus reticulatus, which has been observed in juniper-oak-pinyon woodland on sandstone escarpments.
Eusattus reticulatus
Sand Darkling Beetle
Eusattus reticulatus is a species of darkling beetle in the family Tenebrionidae, commonly known as the sand darkling beetle. It inhabits sandy environments in southwestern North America. The species is primarily ground-dwelling and has been observed in association with juniper-oak-pinyon woodland on sandstone escarpments. Like other members of the genus, it is adapted to arid and semi-arid conditions.
Geolycosa gosoga
Geolycosa gosoga is a species of burrowing wolf spider in the family Lycosidae. It is endemic to the United States, with records from the southwestern and south-central regions including New Mexico and surrounding areas. As a member of the genus Geolycosa, it constructs deep, silk-lined burrows in sandy soils and is primarily nocturnal.
Geolycosa pikei
Pike's Burrowing Wolf Spider
Geolycosa pikei is a burrowing wolf spider endemic to the United States, characterized by its cryptic sandy coloration and specialized fossorial lifestyle. The species constructs deep, silk-lined burrows in sandy substrates, primarily along seashores but also inland. It exhibits rapid wound healing through hemolymph coagulation. Females are larger (18–22 mm) than males (~14 mm). The spider is primarily nocturnal, hunting at dusk by running over sand surfaces.
Geopsammodius
tiny sand-loving scarabs
Geopsammodius is a genus of aphodiine dung beetles comprising approximately nine described species, all described or revised by Skelley in 2006. The genus was established by Gordon & Pittino in 1992. Species are found in sandy habitats in North America, with several bearing common names referencing their small size and sand-dwelling habits.
Geopsammodius unsidensis
Geopsammodius unsidensis is a species of aphodiine dung beetle in the family Scarabaeidae. It was described by Skelley in 2006. The species is known from North America, with records from Texas. As a member of the tribe Psammodiini, it is associated with sandy habitats.
Hippoidea
mole crabs, sand crabs, sand fleas
Hippoidea is a superfamily of decapod crustaceans within the infraorder Anomura, commonly known as mole crabs or sand crabs. These highly specialized burrowers inhabit sandy beaches worldwide, with the exception of polar regions. Members of this superfamily are characterized by their inability to walk; instead, they use modified thoracic legs for digging into sand. The superfamily comprises three families: Hippidae, Albuneidae, and Blepharipodidae. Hippoidea is considered the most basal lineage within Anomura, with the other three superfamilies (Paguroidea, Galatheoidea, and Lomisoidea) being more closely related to each other than to Hippoidea.
Hogna lenta
Field Wolf Spider
Hogna lenta is a species of wolf spider in the family Lycosidae, commonly known as the Field Wolf Spider. It is native to the southeastern United States, with particular abundance in Florida. This large, ground-dwelling spider constructs vertical burrows in sandy substrates and hunts using vibration detection. The species has been used in neuroanatomical research to study catecholaminergic neuron distribution in spider central nervous systems.
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.
Lasiopogon arenicola
Lasiopogon arenicola is a Nearctic robber fly (Diptera: Asilidae) originally described by Osten Sacken in 1877. It belongs to the bivittatus section of the genus Lasiopogon, a group of predatory flies characterized by their robust build and distinctive facial mystax. The species was validated in a 2020 molecular phylogenetic revision that included it in a Bayesian species tree analysis based on mitochondrial COI and three nuclear protein-coding loci (AATS, PEPCK, Wg). As a member of the Asilidae family, it shares the group's characteristic predatory habits and sand-dwelling ecology implied by its species epithet 'arenicola' (sand-dweller).
Lasiopogon polensis
Lasiopogon polensis is a species of robber fly (Asilidae) described by Lavigne in 1969. It belongs to a genus of small to medium-sized predatory flies commonly found in sandy habitats. Very few observations of this species exist in public databases, suggesting it may be rare, locally distributed, or underreported.
Lasiopogon shermani
Lasiopogon shermani is a species of robber fly in the family Asilidae, described by Cole and Wilcox in 1938. The genus Lasiopogon comprises small to medium-sized robber flies commonly found in sandy habitats. As with other Asilidae, this species is predatory, capturing other insects in flight. The species is documented from a limited number of observations, suggesting it may be uncommon or underrecorded.
Leptogaster arenicola
Leptogaster arenicola is a species of robber fly (family Asilidae) described by James in 1937. As a member of the genus Leptogaster, it belongs to a group of slender, elongate predatory flies commonly known as gnat-ogres. The specific epithet 'arenicola' (meaning 'sand-dwelling') suggests an association with sandy habitats, though specific ecological details for this species remain undocumented in the available sources. The species is currently accepted in taxonomic databases but lacks published biological studies.
Lichnanthe albipilosa
White Sand Bear Scarab Beetle
Lichnanthe albipilosa is a species of scarab beetle in the family Glaphyridae, described by Carlson in 1980. It is endemic to California, USA, and is commonly known as the White Sand Bear Scarab Beetle. The species belongs to a small family of beetles associated with sandy habitats.
Macrobaenetes algodonensis
Algodones Sand Treader Cricket
Macrobaenetes algodonensis, the Algodones Sand Treader Cricket, is a species of camel cricket described by Tinkham in 1962. It belongs to the family Rhaphidophoridae, a group of wingless, hump-backed crickets commonly known as camel or cave crickets. The species is endemic to the Algodones Dunes region of southeastern California, where it inhabits sandy desert environments. As a member of the genus Macrobaenetes, it shares adaptations for life in loose sand with related sand treader crickets.
Mecynotarsus
monoceros beetles
Mecynotarsus is a genus of anthicid beetles comprising approximately 19 described species. At least one species, M. tenuipes, is specialized for life in sandy substrates and possesses a large pronotal horn used for digging and locomotion in loose sand. The genus belongs to the family Anthicidae, commonly known as ant-like flower beetles or monoceros beetles.
Megalonotus sabulicola
Introduced Dirt-colored Seed Bug
Megalonotus sabulicola is a seed bug in the family Rhyparochromidae, native to Europe and northern Asia. It has been introduced to North America, where it is established and frequently recorded. The species is associated with sandy habitats, as indicated by its specific epithet 'sabulicola' (sand-dwelling). It is one of the more commonly observed dirt-colored seed bugs in its introduced range.
Molannidae
Hood Casemaker Caddisflies
Molannidae is a small family of caddisflies (Trichoptera) containing approximately 40 described species across three genera: Molanna, Molannodes, and Indomolannodes. The family occurs in the Holarctic and Oriental biogeographic regions. Adults are commonly known as "hood casemakers" and have a distinctive appearance in repose, resembling short branch segments. Larvae construct portable cases and inhabit lentic and slow lotic environments, primarily on sandy substrates.
Mycetosoritis hartmanni
Hartmann's Fungus-farming Ant
Mycetosoritis hartmanni is a rarely collected fungus-farming ant native to North America. Colonies are small and monogynous, typically containing fewer than 100 workers. The species constructs distinctive turret-like mounds in sandy soils and cultivates fungi as its sole food source. Despite being locally abundant in suitable habitat, it remains poorly known due to its subterranean lifestyle.
Myrmeleontini
Pit-trapping Antlions
Myrmeleontini is a tribe of antlions within the subfamily Myrmeleontinae, comprising approximately 12 genera including Myrmeleon, Euroleon, and Baliga. The tribe is distinguished by pit-trapping predatory behavior in larval stages, where larvae construct conical pits in loose substrate to capture prey. Adults are aerial predators with elongated bodies and large, transparent wings. The group has a broad geographic distribution spanning Europe, Asia, and Australia.
Neotridactylus
Pygmy mole crickets, Pygmy sand crickets, Pygmy mole grasshoppers
Neotridactylus is a genus of pygmy mole crickets in the family Tridactylidae, containing approximately 16 described species distributed across the Americas. These insects are small, fossorial orthopterans that inhabit sandy margins of aquatic habitats. Despite their common name, they are more closely related to short-horned grasshoppers than to true mole crickets. The genus was established by Günther in 1972.
Neotridactylus apicialis
larger pygmy mole grasshopper, larger pygmy locust, larger sand cricket, larger pygmy mole cricket
Neotridactylus apicialis is a minute orthopteran in the family Tridactylidae, one of only two species currently recognized in North America. Adults measure 5.5–10 mm and possess disproportionately enlarged hind legs adapted for powerful jumping. The species inhabits sandy margins of freshwater bodies, where it constructs shallow burrows and exhibits fossorial behavior. Despite their common name, pygmy mole crickets are more closely related to short-horned grasshoppers than to true mole crickets (Gryllotalpidae).
Odontopsammodius
Odontopsammodius is a genus of aphodiine dung beetles in the family Scarabaeidae, established by Gordon and Pittino in 1992. The genus comprises approximately 12 described species. These beetles belong to the tribe Psammodiini, a group associated with sandy habitats. The genus is distributed in the Neotropical region.
Omophron dentatum
Toothed Round Sand Beetle
Omophron dentatum, known as the toothed round sand beetle, is a ground beetle in the family Carabidae. It occurs in Central America and western North America, including California and Baja California. Adults are nocturnal and both life stages construct burrows in sandy substrates near water margins. The species is associated with riparian habitats at the edges of rivers, brooks, and ponds.
Omophron gilae
Gila River round sand beetle
Omophron gilae is a species of ground beetle in the family Carabidae. It is commonly known as the Gila River round sand beetle. The species is found in arid and semi-arid regions of the southwestern United States and northwestern Mexico, where it inhabits sandy margins of water bodies. Adults are nocturnal and exhibit gregarious behavior.
Omophron ovale
Oval Round Sand Beetle
Omophron ovale, known as the oval round sand beetle, is a small ground beetle in the family Carabidae. It measures 4.5–6.6 mm in length and displays a distinctive color pattern of yellowish tan with metallic green markings. The species is riparian, inhabiting sandy and muddy margins of freshwater bodies as well as some coastal habitats.
Onycholipini
Onycholipini is a tribe of weevils in the subfamily Cossoninae, established by Alonso-Zarazaga and Lyal in 1999. The tribe includes at least four genera—Dipnotyphlus, Hauseriola, Leipommata, and Onycholips—plus Halorhynchus, which was transferred from Pentarthrini. Members are specialized for fossorial and psammophilous (sand-dwelling) lifestyles, with adaptations including reduced or absent eyes, compact body form, and modified legs for burrowing. The tribe has a disjunct distribution across coastal regions of the Mediterranean, Macaronesia, Arabia, and Australasia, with some species exhibiting transoceanic dispersal capabilities.
Parapsammodius bidens
Parapsammodius bidens is a small aphodiine dung beetle in the family Scarabaeidae. It belongs to the tribe Psammodiini, which includes many sand-dwelling species. The species was described by Horn in 1871 and is known from scattered records across the southeastern United States, Caribbean islands, and Puerto Rico. Like other members of its tribe, it is likely associated with sandy substrates and decomposing organic matter.
Phyllophaga nebulosa
June beetle
Phyllophaga nebulosa is a rare species of June beetle endemic to Jones Lake State Park in North Carolina. It was discovered in 2007 by entomologist Maxi Polihronakis, who initially could not identify specimens collected during research at the park. The species is notable for its highly restricted geographic range and unusual habitat preferences compared to other members of its genus.
Psammobotys fordi
Psammobotys fordi is a moth species in the family Crambidae, described by Eugene G. Munroe in 1961. It is known from California, where it has been recorded in sandy habitats. The genus name Psammobotys derives from Greek roots referring to sand, suggesting an association with sandy environments. The species is one of relatively few documented members of this genus.
Psammodius pierottii
A small scarab beetle in the subfamily Aphodiinae, described from the Mediterranean region in 1979. The species belongs to a genus of sand-dwelling beetles typically associated with sandy substrates. It has been introduced to North America, with established populations in Quebec, Canada.
Psammopolia
Psammopolia is a genus of noctuid moths erected in 2009 by Crabo and Lafontaine. The genus contains five described species distributed in western North America. The name derives from Greek roots suggesting a sand-dwelling association. Species were previously classified in other genera before molecular and morphological analysis supported their separation.
Pseudiron
crabwalker mayflies
Pseudiron is a monotypic genus of mayflies containing a single described species, Pseudiron centralis. The genus is notable for its specialized psammophilous (sand-dwelling) ecology and predatory lifestyle, which is uncommon among mayflies. Larvae are active epibenthic predators that inhabit sandy substrates in river systems.
Pseudiron centralis
White Sand-river Mayfly
Pseudiron centralis is a predaceous mayfly species endemic to sandy freshwater river habitats in North America. It exhibits a univoltine summer life cycle with an extended egg stage lasting 9–10 months. Larvae are active epibenthic predators specialized for feeding on psammophilous chironomid larvae, with distinct microhabitat shifts during development: early instars occupy marginal sands, while later instars inhabit shifting sand dunes in main channel areas. The species shows low population density but also low mortality, with random dispersion patterns in mature larvae.
Pseudironidae
crabwalker mayflies
Pseudironidae is a monotypic family of mayflies containing a single genus, Pseudiron, with one described species, Pseudiron centralis. These insects are commonly referred to as crabwalker mayflies, a name reflecting their distinctive locomotion. The family represents a rare example of extreme taxonomic reduction in Ephemeroptera, with its entire diversity contained within one species.
Rhachocnemis validus
Coast Sand-treader Cricket
Rhachocnemis validus, known as the Coast Sand-treader Cricket, is a species of camel cricket in the family Rhaphidophoridae. It is native to coastal regions of California and is distinguished from similar taxa by its specialized adaptations for life in sandy habitats. Unlike the unrelated "plasterer bees" (genus Colletes) that share a similar common name pattern, this species is an orthopteran with nocturnal habits and is not a pollinator.
Smeringurus vachoni
Vachon's Hairy Scorpion, Vachon's Sand Scorpion
Smeringurus vachoni is a small to medium-sized burrowing scorpion endemic to the southwestern United States and northwestern Mexico. Formerly classified in Paruroctonus, it was reassigned to Smeringurus based on morphological and genetic studies. This psammophilic (sand-dwelling) species constructs shallow burrows in loose sandy substrates and is primarily nocturnal. It is distinguished by its densely setose (hairy) pedipalps and metasoma, an adaptation for sensory function in sandy environments.
Townsendia arenicola
Townsendia arenicola is a species of robber fly (Asilidae) described by Scarbrough in 1995. The specific epithet "arenicola" suggests an association with sandy habitats. As a member of the genus Townsendia, it belongs to a group of small to medium-sized robber flies known for their predatory behavior. The species is documented in multiple taxonomic databases including GBIF, Catalogue of Life, NCBI, and iNaturalist, with 34 observations recorded on the latter platform.
Tridactylidae
Pygmy Mole Crickets, Pygmy Sand Crickets, Pygmy Mole Grasshoppers
Tridactylidae are a family of minute orthopterans commonly called pygmy mole crickets, though they are not closely related to true mole crickets (Gryllotalpidae). Adults typically measure 5–10 mm, with some species reaching 20 mm. They inhabit moist sandy soils near water bodies, where they construct shallow burrows 2–3 cm deep. The family is distinguished by extraordinary jumping abilities powered by enlarged hind femora, and by unique natatory lamellae on the hind tibiae that function as swimming paddles. Some species can jump from water surfaces and even dive. Despite their common name, they are basal grasshoppers (Caelifera), not crickets.
Trogloderus warneri
Trogloderus warneri is a species of darkling beetle in the family Tenebrionidae, described by Johnston in 2019. It belongs to a genus of psammophilic beetles restricted to dunes and sandy habitats in the western United States. The species is endemic to the western Colorado Plateau region. As a member of a genus whose most recent common ancestor dates to approximately 5.2 million years ago, T. warneri likely arose during the mid-Pleistocene. The genus Trogloderus comprises six species, all adapted to sandy environments.
Vermileonidae
wormlions
Vermileonidae is a small family of Brachycera flies comprising fewer than 80 described species in 11 genera. The family is notable for its unusual biology: larvae construct conical pitfall traps in sand to capture prey, while adults are slender, long-legged flies that visit flowers for nectar. Historically classified within Rhagionidae, Vermileonidae is now recognized as a distinct family due to marked morphological and biological differences. The group has a relictual distribution concentrated in arid regions of Africa and the western Mediterranean, with additional species in Asia and the Nearctic.
Villa arenicola
Villa arenicola is a species of bee fly (family Bombyliidae) described by Johnson in 1908. The species epithet "arenicola" indicates a sand-dwelling habit, consistent with many Villa species that inhabit sandy environments. As a member of the bee fly family, it likely exhibits the group's characteristic parasitoid lifestyle, though specific host associations for this species remain undocumented. The genus Villa is among the more speciose genera in Bombyliidae, with adults typically visiting flowers and larvae developing as parasitoids in the nests of various insects.