Poorly-known
Guides
Tricharaea simplex
Tricharaea simplex is a species of flesh fly in the family Sarcophagidae, described by Aldrich in 1916. It belongs to a genus of sarcophagid flies distributed primarily in the Neotropical region. The species is poorly documented in scientific literature, with minimal published biological information.
Trichochrous egenus
Trichochrous egenus is a species of soft-bodied plant beetle in the family Melyridae. The genus Trichochrous belongs to the subfamily Malachiinae, a group commonly known as soft-winged flower beetles or melyrids. Members of this genus are typically small, elongate beetles found in association with flowers and vegetation. The specific epithet 'egenus' suggests a Latin derivation possibly meaning 'needy' or 'destitute,' though the etymological intent remains undocumented. The species is represented by extremely limited observational data.
Tricyphona auripennis
Tricyphona auripennis is a species of crane fly in the family Pediciidae, first described by Osten Sacken in 1860. It is a Nearctic species with documented records from eastern Canada and the northeastern United States. The species belongs to a genus of small to medium-sized crane flies characterized by distinctive wing venation patterns. Very few observations of this species have been recorded, with only two observations documented on iNaturalist as of the knowledge cutoff.
Trieces integer
Trieces integer is a species of ichneumonid wasp described by Townes & Townes in 1959. The genus Trieces belongs to the family Ichneumonidae, one of the largest families of parasitoid wasps. Very little published biological information exists for this species. The genus name Trieces derives from Greek, with 'tri-' meaning three and 'eces' likely referring to some morphological feature, though the specific meaning of 'integer' (Latin for 'whole' or 'intact') in this context is not documented in available sources.
Trigonurinae
Trigonurinae is a monogeneric subfamily of rove beetles (Staphylinidae) containing only the genus Trigonurus. The group has a Holarctic distribution with approximately nine described species. Most species occur in North America (seven species), with two in the western Palaearctic and two in China. The subfamily was established by Reiche in 1866.
Trimerotropis arizonensis
Colorado River blue-wing grasshopper
Trimerotropis arizonensis is a band-winged grasshopper described by Tinkham in 1947. It belongs to the genus Trimerotropis within the subfamily Oedipodinae, a group characterized by colorful hind wings. The species is known from the southwestern United States, particularly Arizona. Very little detailed biological information has been published for this species specifically.
Trimerotropis inyo
Inyo Grasshopper
Trimerotropis inyo is a band-winged grasshopper species in the family Acrididae, described by Rentz & Weissman in 1984. It is endemic to California and belongs to a genus characterized by banded or colored hind wings. The species is poorly documented in scientific literature, with minimal published biological information beyond its original description and taxonomic placement.
Triopasites
Triopasites is a genus of cuckoo bees in the family Apidae, subfamily Nomadinae, and tribe Brachynomadini. The genus was described by Linsley in 1939 and contains at least two described species: T. penniger (Cockerell, 1894) and T. spinifera (Rozen, 1997). As cleptoparasitic bees, species in this genus do not construct their own nests but instead lay eggs in the nests of host bees.
Trisapromyza
Trisapromyza is a genus of small flies in the family Lauxaniidae, established by Shewell in 1986. The genus contains at least two described species: Trisapromyza pictipes and Trisapromyza vittigera. Lauxaniid flies are generally associated with decaying plant material and fungi. Information on this genus remains limited, with few observations documented.
Trocodima fuscipes
Trocodima fuscipes is a small moth in the family Erebidae, first described by Augustus Radcliffe Grote in 1883. The species is known only from the US state of Arizona. Adults have a wingspan of 18–22 mm and have been recorded flying in April and July. It is a poorly documented species with limited available information on its biology.
Tydessa
Tydessa is a genus of beetles in the family Pyrochroidae (fire-colored beetles), established by Peacock in 1982. It is the sole genus in the subfamily Tydessinae. The genus is extremely poorly known, with minimal published biological or ecological information available.
Typhlobius
Typhlobius is a genus of lithobiid centipedes established by Chamberlin in 1922. These centipedes belong to the order Lithobiomorpha, characterized by having 15 pairs of legs in adults. The genus is distinguished by adaptations to subterranean environments, including reduced or absent eyes. Species within this genus are poorly known, with limited published ecological or biological data available.
Typhoctes williamsi
Typhoctes williamsi is a species of parasitoid wasp in the family Chyphotidae, a small family of stinging wasps within the order Hymenoptera. The genus Typhoctes contains only two described species, with T. williamsi being one of them. Members of Chyphotidae are poorly studied and rarely encountered, with most information about the family coming from scattered collection records rather than systematic research. The species is known from extremely few observations.
Udea vacunalis
Udea vacunalis is a small crambid moth described by Augustus Radcliffe Grote in 1881. It is known only from California, with adults active during summer months. The species is characterized by pale, nearly unmarked wings with distinctive marginal dotting on the hindwings.
Ulidiotites
Ulidiotites is a genus of picture-winged flies (family Ulidiidae) established by Steyskal in 1961. The genus is monotypic, containing only Ulidiotites dakotana. Ulidiid flies are known for their patterned wings and are often associated with decaying plant matter.
Ulochaetes
Lion Beetle
Ulochaetes is a genus of longhorn beetles (Cerambycidae) in the subfamily Necydalinae. The genus contains at least two described species: Ulochaetes leoninus, distributed in North America, and Ulochaetes vacca, found in Bhutan and China. Ulochaetes leoninus is notable for its striking wasp-mimicry, featuring yellow and black coloration and a slender body form that causes it to be frequently mistaken for a wasp or hornet. The genus is relatively small and poorly studied, with most ecological information derived from observations of the North American species.
Vidia
Vidia is a genus of mites in the family Winterschmidtiidae (subfamily Ensliniellinae), first described by Oudemans in 1905. These mites belong to the order Sarcoptiformes, a group that includes many astigmatid mites associated with various habitats and hosts. The genus is part of the diverse mite fauna within the Acariformes subclass. Very few observations of this genus have been recorded in biodiversity databases.
Villa nigra
Villa nigra is a species of bee fly in the family Bombyliidae, described by Cresson in 1916. As a member of the genus Villa, it belongs to a group of parasitoid flies whose larvae develop in the nests of bees and wasps. The species is poorly documented in scientific literature, with limited information available regarding its biology, distribution, and host associations.
Weda tumidifrons
Weda tumidifrons is a species of stink bug in the family Pentatomidae, described by Barber and Sailer in 1953. It belongs to the genus Weda, a small group within the diverse stink bug fauna of North America. The species is poorly documented in scientific literature, with minimal published information on its biology and ecology. Records indicate it occurs in North America, though specific habitat preferences and life history remain largely unstudied.
Willisus
Willisus is a monotypic genus of North American araneomorph spiders established by V. D. Roth in 1981. The genus contains a single species, Willisus gertschi, known only from the United States. Its taxonomic placement has been revised, with sources variously placing it in Cybaeidae or Hahniidae. The genus is poorly known, with only two observations documented on iNaturalist.
Xanthocomus
Xanthocomus is a genus of small beetles in the family Phalacridae, order Coleoptera. Members of this genus are part of a family commonly known as shining flower beetles or oval beetles. The genus is poorly documented in scientific literature, with limited available information on its species diversity and biology.
Xerochares expulsus
Xerochares expulsus is a species of spider wasp in the family Pompilidae, described by Schulz in 1906. It belongs to the genus Xerochares, which comprises spider wasps adapted to arid and semi-arid environments. The species has been documented in observational databases but remains poorly studied in scientific literature.
Xeromantispa scabrosa
Xeromantispa scabrosa is a species of mantidfly in the family Mantispidae, order Neuroptera. The genus Xeromantispa is distinguished from other mantidflies by adaptations to arid environments. This species was described by Banks in 1912. Mantidflies in this genus are characterized by their raptorial forelegs, similar to those of praying mantises, used for capturing prey. The specific epithet "scabrosa" refers to a rough or scabrous texture, likely describing some aspect of the cuticle or body surface.
Xyletinus fucatus
Xyletinus fucatus is a small beetle species in the family Ptinidae (formerly Anobiidae), described by John Lawrence LeConte in 1865. The species is recorded from multiple Canadian provinces including British Columbia, Manitoba, and New Brunswick, indicating a transcontinental distribution across northern North America. As a member of the subfamily Xyletininae, it belongs to a group commonly known as deathwatch beetles or furniture beetles, though specific ecological details for this species remain poorly documented.
Zeropamera
Zeropamera is a genus of seed bugs in the family Rhyparochromidae, established by Barber in 1948. It belongs to the tribe Myodochini within the subfamily Rhyparochrominae. The genus is poorly documented in scientific literature, with very few observations recorded. Members of this genus are true bugs (Hemiptera) characterized by their piercing-sucking mouthparts.