Taxonomic-uncertainty
Guides
Tabanus fulvicallus
Brown-footed Horse Fly
Tabanus fulvicallus is a species of horse fly in the family Tabanidae, described by Philip in 1931. As a member of the genus Tabanus, it shares the characteristic large size and blood-feeding habits typical of horse flies. The species is recognized by iNaturalist under the accepted name with the common name "Brown-footed Horse Fly," though detailed biological information remains limited. Only three observations are recorded in iNaturalist, indicating it is either rare, undercollected, or restricted in distribution. The Catalogue of Life lists it as a synonym, while GBIF treats it as accepted, suggesting some taxonomic uncertainty or recent revalidation.
Tricholochmaea
Tricholochmaea is a genus of leaf beetles in the family Chrysomelidae, comprising 21 described species and two subspecies. Members are known as skeletonizing leaf beetles and flea beetles, feeding on plant foliage in a characteristic pattern that leaves leaf veins intact. The genus includes several species associated with specific host plants, such as the cherry leaf beetle (T. cavicollis), Pacific willow leaf beetle (T. decora), and blueberry leaf beetle (T. vaccinii). Taxonomic treatment varies, with some authors treating Tricholochmaea as a synonym of Pyrrhalta.
Triglyphulus
Triglyphulus is a genus of weevils in the family Curculionidae, subfamily Entiminae, described by Cockerell in 1906. It belongs to the tribe Byrsopagini, a group of broad-nosed weevils. The taxonomic status of this genus has been treated differently across sources, with Catalogue of Life listing it as a synonym under Trichalophus, while GBIF accepts it as a valid genus. The genus is represented by limited observations, with only 12 records documented on iNaturalist.
Trimerotropis undescribed-species-a
An undescribed species within the bandwinged grasshopper genus Trimerotropis, recognized from specimens collected in the western United States. As an undescribed taxon, it lacks formal scientific description but has been documented in entomological surveys and collections. Species in this genus are typically associated with arid and semi-arid habitats, often exhibiting cryptic coloration and strong flight capabilities characteristic of Oedipodinae.
Vecturoides
Vecturoides is a genus of soft-winged flower beetles (family Melyridae) established by Fall in 1930. The genus is currently classified as doubtful in GBIF, indicating taxonomic uncertainty regarding its validity or circumscription. Very few observations exist, with only 10 records on iNaturalist. As a poorly documented genus, most aspects of its biology remain unknown.
Vespula intermedia
Northern Red-banded Yellowjacket, American red-banded yellowjacket
Vespula intermedia is a rare social wasp species in the family Vespidae, described by Robert du Buysson in 1905. Its taxonomic status remains uncertain; it was previously listed as a synonym of Vespula rufa, but entomologists are divided on this classification. The species is native to northern regions of North America, with records from northern Canada, Maine, and Alaska. It is poorly known compared to more common yellowjacket species, with only 47 observations documented on iNaturalist as of the source date.
Virbia marginata
Virbia marginata is a moth in the family Erebidae, subfamily Arctiinae. It was described by Herbert Druce in 1885. The species is considered a synonym of Virbia rubicundaria in some taxonomic treatments, though this status appears unresolved across sources. Records indicate presence in parts of North America and Central America.
Vrilletta laurentina
Vrilletta laurentina is a small beetle species described by Fall in 1905. It belongs to the family Ptinidae (deathwatch and spider beetles), a group known for wood-boring habits in larvae. The species has been recorded from eastern Canadian provinces.
Wallengrenia egeremet
northern broken dash
A small skipper butterfly (Hesperiidae) native to eastern and central North America. Adults fly in summer, with single or double broods depending on latitude. Larvae feed on Panicum grasses; adults visit flowers for nectar. Taxonomic placement remains uncertain, with some sources placing it in genus Polites or treating it as conspecific with Wallengrenia otho.
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.
Xestia plebeia
Xestia plebeia is a species of owlet moth in the family Noctuidae, described by Smith in 1898. The species was originally described under the genus Noctua before being transferred to Xestia. It has been recorded from Alberta, Canada. The genus placement has been subject to taxonomic discussion, with some treatments considering it related to or potentially synonymous with Hemigraphiphora.