Genus
Guides
Acalyptus
Acalyptus is a genus of true weevils (Curculionidae) established in 1833. The genus contains at least one described species, A. carpini. Information on biology and ecology is sparse.
Acanthinus
antlike flower beetles
Acanthinus is a genus of antlike flower beetles in the family Anthicidae. The genus contains over 30 described species, though some sources cite approximately 12. These beetles are characterized by their ant-like appearance and association with flowers.
Acasis
Yellow-barred brindle (A. viretata), Olive-and-black carpet (A. viridata)
Acasis is a genus of moths in the family Geometridae, subfamily Larentiinae, established by Philogène Auguste Joseph Duponchel in 1845. The genus contains at least three recognized species, including the well-documented Acasis viretata (Yellow-barred Brindle), which has been the subject of genome sequencing research. Species within this genus are small to medium-sized geometrid moths with distinctive wing patterns. Information on most species remains limited, with detailed biological data available primarily for A. viretata.
Achatodes
Achatodes is a genus of noctuid moths containing at least two described species. The genus includes Achatodes zeae, commonly known as the elder shoot borer moth, whose larvae bore into elder shoots. The genus was established by Guenée in 1852.
Acrapex
Acrapex is a genus of noctuid moths established by George Hampson in 1894. Species in this genus are distinguished by their slender body form and specific wing venation patterns. The genus is placed within the subfamily Noctuinae.
Acroria
Acroria is a genus of moths in the family Noctuidae, subfamily Noctuinae, and tribe Dypterygiini. Established by Francis Walker in 1858, this genus belongs to the diverse owlet moth family, which contains many nocturnal species. The genus has been documented in citizen science observations, with over 200 records on iNaturalist.
Acuminochernes
Acuminochernes is a genus of pseudoscorpions in the family Chernetidae. It was erected by C. Clayton Hoff in 1949. Published information on the morphology, ecology, and distribution of this genus remains sparse.
Agyneta
dwarf spiders, sheet weavers
Agyneta is a genus of dwarf spiders (family Linyphiidae) containing over 200 species distributed across multiple continents. First described by J. E. Hull in 1911, these small sheet-weaving spiders are characterized by distinct genital structures used for species identification. The genus has been documented from Europe, South America, and other regions, with new species continuing to be described.
Ahmosia
Ahmosia is a genus of tortricid moths in the subfamily Olethreutinae, established by Heinrich in 1926. The genus contains two described species: Ahmosia aspasiana and Ahmosia galbinea. These moths are part of the diverse Tortricidae family, commonly known as leafroller moths. The genus is rarely encountered, with limited observational records available.
Amorophaga
Amorophaga is a genus of moths in the family Tineidae, established by Zagulyaev in 1966. The genus is poorly documented in scientific literature, with minimal published information on its constituent species, biology, or ecology. Records indicate it belongs to the diverse group of tineid moths, many of which are associated with detritus or keratinous materials.
Anaperochernes
false scorpions
Anaperochernes is a genus of pseudoscorpions in the family Chernetidae, established by Beier in 1964. It is currently recognized as a valid genus within the order Pseudoscorpiones. Published species-level descriptions and biological data for this genus remain limited.
Anderida
Anderida is a genus of moths in the family Pyralidae, subfamily Phycitinae. Established by Heinrich in 1956, this genus belongs to the diverse group of snout moths. The genus contains species that are part of the North American moth fauna.
Anopina
Anopina is a genus of tortricid moths in the subfamily Tortricinae, tribe Cochylini. The genus was erected by Obraztsov in 1962 and contains approximately 70 described species, most of which were described by Brown & Powell in a 2000 revision. Species are distributed primarily in North and Central America, with many endemic to Mexico. The genus is characterized by distinctive genitalic morphology, particularly in the male valvae.
Anorthodes
Anorthodes is a genus of moths in the family Noctuidae, established by Smith in 1891. The genus contains two recognized species: Anorthodes indigena (Barnes & Benjamin, 1925) and Anorthodes triquetra (Grote, 1883). A third species, formerly placed here as Anorthodes tarda, has been reassigned to the genus Athetis. These moths belong to the diverse owlet moth family, which includes many nocturnal species with cryptic coloration.
Aon
Aon is a genus of moths in the family Erebidae, subfamily Erebinae. The genus was established by Neumoegen in 1892. Species in this genus are nocturnal lepidopterans within the diverse Erebidae family, which includes many underwing and related moth groups.
Aperittochelifer
Aperittochelifer is a genus of pseudoscorpions belonging to the family Cheliferidae, erected by Beier in 1955. It is placed within the order Pseudoscorpiones, a group of small arachnids commonly known as false scorpions. Available public databases contain no community science observations for this genus, and published species-level biological data appear to be scarce.
Aphaniosoma
Aphaniosoma is a genus of small flies in the family Chyromyidae, established by Becker in 1903. The genus is particularly diverse in the Eastern Mediterranean and Middle East, with recent taxonomic work describing 19 new species from this region. Species-level identification relies on detailed examination of male genitalia and other subtle morphological characters.
Apotomis
Apotomis is a genus of tortricid moths in the subfamily Olethreutinae. The genus comprises approximately 17 Nearctic species and additional Palearctic species, with recent taxonomic revisions recognizing new species and establishing synonymies. One well-documented species, A. turbidana (White-shouldered Marble), exhibits cryptic bird-dropping coloration and has been sequenced as part of the Darwin Tree of Life Project.
Araripescorpius
Italy is a genus of Gram-negative bacteria in the family Yersiniaceae. Cells are aerobic or facultatively anaerobic, non-spore-forming, and typically motile by peritrichous flagella. The genus includes both free-living environmental species and opportunistic pathogens associated with infections in humans and other animals. They are distinguished by biochemical and molecular characteristics that separate them from closely related genera within the Enterobacterales order.
Aristaea
Aristaea is a genus of small moths in the family Gracillariidae, established by Edward Meyrick in 1907. The genus comprises twelve described species distributed across Australia, Asia, and parts of Europe. Members are leaf-mining moths, with larvae that feed internally on plant tissues. The genus includes the type species Aristaea thalassias, described by Meyrick in 1880.
Artacarus
short-tailed whipscorpion
Artacarus is a monotypic genus of hubbardiid short-tailed whipscorpions first described by Orator F. Cook in 1899. The genus contains a single recognized species, Artacarus liberiensis. This species is recorded from Ivory Coast and Liberia.
Astiptodonta
Astiptodonta is a genus of prominent moths in the family Notodontidae, containing at least two described species. The genus was established by Miller & Franclemont in 2021. Species in this genus occur in the southwestern United States and Mexico. The genus belongs to the subfamily Heterocampinae within the superfamily Noctuoidea.
Atomopteryx
Atomopteryx is a genus of moths in the family Crambidae, subfamily Spilomelinae. The genus was established by Walsingham in 1891. It contains approximately ten described species distributed primarily in the Neotropical region. Species-level taxonomy and biology remain poorly documented.
Bellardia
None provided
Bellardia is a genus of flies in the family Calliphoridae, subfamily Calliphorinae. The genus was established by Robineau-Desvoidy in 1863. It belongs to the order Diptera and class Insecta.
Caccoleptus
Caccoleptus is a genus of small beetles in the family Dermestidae, first described by Sharp in 1902. The genus contains six described species distributed in the Neotropical region, with records from Colombia. Members of this genus are among the lesser-known dermestid beetles, with limited biological data available.
Caecossonus
Caecossonus is a genus of true weevils (family Curculionidae) established in 1955 by E.E. Gilbert. The genus contains three described species: C. continuus, C. dentipes, and C. sylvaticus. Two species were described by Howden in 1992, while the type species C. dentipes was described by Gilbert in 1955. The genus name suggests a connection to caecum or blind-ending structures, possibly referring to morphological features of the weevils.
Caladonus
Caladonus is a genus of leafhoppers in the family Cicadellidae, subfamily Deltocephalinae, tribe Platymetopiini. The genus was established by Oman in 1949. As a member of the leafhopper family, species in this genus are presumed to be phytophagous and possess the characteristic jumping hind legs and piercing-sucking mouthparts typical of Cicadellidae. The genus is part of the diverse Platymetopiini tribe, which contains numerous genera of small to medium-sized leafhoppers.
Caloreas
Caloreas is a genus of small moths in the family Choreutidae, established by Heppner in 1977. The genus contains approximately 18 described species distributed primarily in North America. Species were originally described under various other genera before being consolidated into Caloreas. The genus belongs to the subfamily Choreutinae, a group commonly known as metalmark moths due to their distinctive wing patterns.
Calosima
Calosima is a genus of gelechioid moths in the family Blastobasidae, established by Dietz in 1910. The genus belongs to the diverse superfamily Gelechioidea, which contains numerous small moth species often characterized by narrow wings and cryptic coloration. As a blastobasid genus, Calosima species are likely small to minute in size with relatively inconspicuous appearance. The genus has been documented in various regions with 186 iNaturalist observations recorded.
Carphonotus
Carphonotus is a small genus of true weevils in the family Curculionidae, established by Thomas Lincoln Casey in 1892. The genus contains at least two described species: C. ochreipilis and C. testaceus. Information on the biology and ecology of these weevils remains limited.
Cedoaphis
Cedoaphis is a genus of aphids in the family Aphididae, tribe Macrosiphini. It was established by Oestlund in 1923. The genus is part of the diverse Macrosiphini, one of the largest tribes of aphids, whose members are generally characterized by long siphunculi and association with herbaceous host plants.
Chabula
Chabula is a genus of moths in the family Crambidae, subfamily Pyraustinae. The genus was established by Moore in 1886 and contains at least two described species: Chabula acamasalis (described by Walker in 1859) and Chabula vedonalis (described by Swinhoe in 1894). These moths belong to the diverse snout moth group, characterized by their elongated labial palps.
Conservula
Conservula is a genus of moths in the family Noctuidae, established by Augustus Radcliffe Grote in 1874. The genus contains at least 17 described species distributed across multiple continents. Members exhibit distinctive morphological traits, including naked eyes without lashes, fully developed proboscis, and characteristic metathoracic tuft development that varies geographically.
Coscinocephalus
Coscinocephalus is a genus of rhinoceros beetles in the family Scarabaeidae, established by Prell in 1936. The genus comprises at least two described species: Coscinocephalus cribrifrons, described by Schaeffer in 1906, and Coscinocephalus tepehuanus, described by Morón & Ratcliffe in 1996. Members of this genus belong to the subfamily Dynastinae and tribe Pentodontini, placing them among the smaller rhinoceros beetles.
Crinodes
Crinodes is a genus of moths in the family Notodontidae, established by Herrich-Schäffer in 1855. The genus is placed in the subfamily Dudusinae. At least one species, Crinodes besckei, has been studied for larval mouthpart functional morphology. The genus contains multiple species with records spanning the Americas.
Crocinosoma
Crocinosoma is a genus of tachinid flies established by Reinhard in 1947. The genus belongs to the tribe Leskiini within the subfamily Tachininae. Two species have been described: C. cornuale and C. cornualis, both authored by Reinhard in the same year. As with other tachinid flies, members of this genus are presumably parasitoids, though specific host relationships remain undocumented.
Crumbana
Crumbana is a genus of leafhoppers in the family Cicadellidae, subfamily Deltocephalinae. The genus was established by Oman in 1949. It belongs to the tribe Deltocephalini, a diverse group within the leafhopper superfamily Membracoidea. Species-level information for this genus appears limited in public databases.
Cryptoditha
Cryptoditha is a genus of pseudoscorpions in the family Chthoniidae. It was erected by J.C. Chamberlin and R.V. Chamberlin in 1945. The genus contains at least two described species.
Cryptopygus
Cryptopygus is a genus of springtails (Collembola: Isotomidae) with a cosmopolitan distribution spanning polar, temperate, and tropical regions. The genus includes Antarctic endemics such as C. terranovus, a relict species that survived the Last Glacial Maximum on the Antarctic continent, as well as species from seashores, littoral zones, and terrestrial habitats. At least 29 species are recognized in the Americas. Some species exhibit specialized ecological associations, including an undescribed Mexican species found in association with the hermit crab Coenobita clypeatus.
Cymoninus
Cymoninus is a genus of true bugs in the family Ninidae, established by Breddin in 1907. The genus comprises at least four described species distributed across tropical and subtropical regions. Members of this genus are small, seed-feeding heteropterans within the superfamily Lygaeoidea. The family Ninidae is relatively poorly studied compared to other lygaeoid families.
Danaus
tiger milkweed butterflies, tigers, milkweeds, monarchs, wanderers, queens
Danaus is a genus of butterflies in the tiger butterfly tribe (Danaini), commonly known as tiger milkweed butterflies, monarchs, wanderers, and queens. The genus includes some of the most recognizable butterflies worldwide, notably the migratory monarch butterfly (Danaus plexippus). Species in this genus are characterized by their association with milkweed host plants (Asclepias spp.), from which larvae sequester cardiac glycosides for chemical defense. The genus has a global distribution spanning North America, South America, Africa, Asia, Indonesia, and Australia, and serves as an important model system for studying migration, plant-insect coevolution, and genome evolution.
Decinea
Decinea is a genus of skippers in the family Hesperiidae, established by Evans in 1955. The genus contains approximately twelve recognized species distributed in the Neotropical region. Several species formerly placed in Decinea have been transferred to other genera including Lindra, Oligoria, and Testia based on revised taxonomy.
Decua
Decua is a genus of leafhoppers in the family Cicadellidae, tribe Cicadellini, established by Oman in 1949. As a member of the subfamily Cicadellinae, it belongs to a diverse group of sap-feeding insects commonly known as sharpshooters. The genus is part of the large leafhopper fauna of the Western Hemisphere. No species-level biological data or diagnostic descriptions are readily available in major databases.
Diasemiodes
Diasemiodes is a genus of small moths in the family Crambidae, subfamily Spilomelinae. The genus was established by Munroe in 1957 and contains at least four described species distributed in the Americas. These moths are part of the diverse grass moth group, though specific ecological details remain limited in the literature.
Diastictis
Diastictis is a genus of crambid moths in the subfamily Spilomelinae, established by Hübner in 1827. The genus comprises approximately ten recognized species, most described by Munroe in 1956. Species occur primarily in North America, with records from the United States including Vermont. The genus has been subject to taxonomic revision, with two former species transferred to other genera.
Dichaetocoris
Dichaetocoris is a genus of plant bugs in the family Miridae, established by Knight in 1968. Members of this genus belong to the suborder Heteroptera, the true bugs, and are part of the diverse mirid fauna of North America. The genus is characterized by distinctive structural features of the male genitalia, particularly the form of the parameres. Species within Dichaetocoris are generally small, delicate mirids associated with herbaceous vegetation.
Diplostethus
Diplostethus is a genus of click beetles (family Elateridae) containing six described species. Members range from 16 to 25 mm in length and are distributed across the Nearctic and Neotropical regions. The genus is morphologically similar to Pittonotus.
Dirophanes
Dirophanes is a genus of parasitoid wasps in the family Ichneumonidae. The genus was established by Förster in 1869. Two species are recognized: Dirophanes anoukae and Dirophanes benjamini, both described by Hower in 2006. The genus has been recorded in Europe and North America.
Disclisioprocta
Disclisioprocta is a genus of geometrid moths in the subfamily Larentiinae, established by Wallengren in 1861. The genus contains at least three species: D. stellata (type species), D. natalata, and D. edmondsii (transferred from Xanthorhoe in 2023). Species are characterized by distinctive male and female genitalia morphology, including bifid uncus, costal sclerotised band, stout sacculus projection, and plate-like cornutus. Molecular phylogenetic analysis supports the monophyly of the genus, though genetic distances between species are higher than typical for congenerics, suggesting possible undescribed diversity.
Doru
Doru is a genus of earwigs in the family Forficulidae, established by Burr in 1907. It belongs to the subfamily Forficulinae and is part of the diverse group of Eudermaptera within the order Dermaptera. The genus has been documented through over 4,900 observations on iNaturalist, indicating it is relatively well-observed in nature. Doru species are found within the broader distribution of Forficulidae, which has a cosmopolitan distribution with particular diversity in temperate and tropical regions.