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Urgleptes facetus
Urgleptes facetus is a species of longhorn beetle in the family Cerambycidae, described by Thomas Say in 1827. The species belongs to the subfamily Lamiinae and tribe Acanthocinini. It is distributed across parts of eastern North America, with records from Canada (Ontario, Québec) and the United States. Like other members of the genus Urgleptes, this is a small to medium-sized cerambycid beetle.
Vesiculaphis caricis
Vesicular Azalea-Sedge Aphid
Vesiculaphis caricis is a species of aphid in the family Aphididae, first described by Fullaway in 1910. Originally placed in the genus Toxoptera, it is now classified in the genus Vesiculaphis. The species has a known distribution in Hawaii and the continental United States.
Vespula infernalis
cuckoo yellowjacket, American cuckoo yellowjacket
Vespula infernalis is an obligate social parasite (inquiline) that invades and usurps colonies of other yellowjacket species, primarily Vespula acadica in North America. Unlike most parasitic wasps, it exhibits intensely aggressive behavior during colony takeover, using specialized morphological adaptations including a large, heavily curved stinger to subdue host workers. The species lacks a worker caste and cannot build nests or rear its own young, instead forcing host workers to feed and care for its brood through dominance behaviors including mauling and forced trophallaxis.
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chromolepida
Villa chromolepida is a species of bee fly in the family Bombyliidae, described by Cole in 1922. The species is known from the United States. As with other bee flies, adults likely feed on nectar and pollen, though specific behavioral and ecological details remain undocumented. The genus Villa contains numerous species of bee flies, many of which are parasitoids of other insects.
Villa hypomelas
Villa hypomelas is a species of bee fly in the family Bombyliidae, first described by Macquart in 1840. Originally described as Anthrax hypomelas, it was later transferred to the genus Villa. Bee flies in this family are characterized by their parasitic larval lifestyle and adult nectar-feeding behavior. The species has been documented in the United States with 27 observations recorded on iNaturalist.
Walckenaeria exigua
dwarf spider
Walckenaeria exigua is a species of dwarf spider in the family Linyphiidae, first described by Millidge in 1983. It belongs to a genus of small sheet-web weavers characterized by their diminutive size and specialized genital morphology. The species has been documented across much of North America, with confirmed records from both the United States and Canada. Like other members of Linyphiidae, it constructs flat sheet webs with a retreat area, though specific web architecture details for this species remain undocumented.
Willowsia neonigromaculata
Willowsia neonigromaculata is a cryptic springtail species described in 2021 from the United States. It was previously confused with the European species W. nigromaculata due to morphological similarity. Genetic and morphological analysis revealed it as distinct, with diagnostic characters including the number of inner appendages on the maxillary sublobal plate. The species belongs to the family Entomobryidae, one of the most diverse families of Collembola.
Wubana pacifica
Wubana pacifica is a species of sheetweb spider in the family Linyphiidae. It was described by Nathan Banks in 1896. The species is known from the United States. As a member of Linyphiidae, it constructs flat, horizontal sheet webs rather than orb webs.
Xanthonia furcata
Xanthonia furcata is a small leaf beetle in the family Chrysomelidae, described by Staines & Weisman in 2001. The species is found in the southern and eastern United States, with documented records from Illinois, Missouri, Texas, and Oklahoma. It is associated with wild cherry (Prunus spp.) and oaks (Quercus spp.) as host plants. The specific epithet 'furcata' derives from Latin 'furca,' meaning 'fork,' though the morphological feature this refers to is not explicitly described in available sources.
Xerophloea majesta
Xerophloea majesta is a species of leafhopper in the family Cicadellidae, described by Lawson in 1931. It belongs to the subfamily Ledrinae and tribe Xerophloeini, a group characterized by distinctive morphological adaptations. The species has been recorded across multiple states in the southeastern and central United States, with scattered observations extending to California. As a member of the Auchenorrhyncha, it is a piercing-sucking insect that feeds on plant vascular fluids.
Xylena thoracica
Acadian Swordgrass Moth
Xylena thoracica, commonly known as the Acadian Swordgrass Moth, is a species of cutworm moth in the family Noctuidae. It is found in North America, with records from Canada (Alberta, Manitoba, Saskatchewan) and the United States (Vermont). The species was first described by Putnam-Cramer in 1886 and is assigned Hodges number 9875.
Xylotrechus albonotatus
Xylotrechus albonotatus is a species of longhorn beetle in the family Cerambycidae, described by Thomas Lincoln Casey Jr. in 1912. It belongs to the genus Xylotrechus, a diverse group of wood-boring beetles commonly known as tiger beetles or wasp beetles due to their frequent yellow and black coloration. The specific epithet "albonotatus" refers to white markings, suggesting distinctive pale patterning on the elytra or pronotum. Like other members of the tribe Clytini, adults are likely diurnal and active on host tree trunks.
Ypsolopha barberella
Ypsolopha barberella is a moth of the family Ypsolophidae, first described by Busck in 1903. It is known from the southwestern United States, specifically Arizona, Nevada, and Utah. As a member of the Ypsolophidae family, it shares the group's characteristic resting posture and larval web-building behavior, though specific details for this species remain limited.
Ypsolopha frustella
Ypsolopha frustella is a species of moth in the family Ypsolophidae. The species is known from the United States, specifically California. Like other ypsolophid moths, adults are characterized by a distinctive resting posture with the body inverted and antennae extended forward. Larvae construct silken webs on plant foliage for feeding and shelter.
Ypsolopha gerdanella
Ypsolopha gerdanella is a small moth in the family Ypsolophidae, recorded from the southwestern United States. The species has a wingspan of approximately 18 mm. Adults display distinctive golden brown forewings marked with a prominent white longitudinal streak edged in black. The species belongs to a genus whose members are noted for their unusual resting posture—adults hang upside down with antennae extended forward.
Zapatella quercusphellos
Zapatella quercusphellos is a species of gall wasp in the family Cynipidae. It is known to induce galls on oaks (Quercus species). The species was described by Carl Robert Osten Sacken and has been documented in the northeastern United States. It belongs to a genus of cynipid wasps specialized on oak hosts.
Zaplous annulatus
Zaplous annulatus is a species of longhorn beetle in the family Cerambycidae. Originally described by Louis Alexandre Auguste Chevrolat in 1862 under the genus Ecyrus, it was later transferred to the genus Zaplous. The species is known from Cuba and the United States, with records from the Caribbean and North America. As a member of the subfamily Lamiinae, it belongs to a diverse group of wood-boring beetles commonly known as flat-faced longhorns.
Zelia ruficauda
Zelia ruficauda is a tachinid fly described by Reinhard in 1946. The species belongs to the genus Zelia within the subfamily Dexiinae. As with other tachinid flies, it is likely a parasitoid, though specific host records remain undocumented. The species is known from the United States with limited observational records.
Zelotes funestus
Zelotes funestus is a species of ground spider in the family Gnaphosidae, found in the United States. As a member of the genus Zelotes, it belongs to a diverse group of nocturnal hunting spiders commonly known as ground spiders. The species was first described by Keyserling in 1887.
Zora pumila
Zora pumila is a species of prowling spider in the family Miturgidae. The species was first described by Nicholas Marcellus Hentz in 1850. It is known from the United States, though specific details regarding its biology and ecology remain poorly documented in the scientific literature. As a member of Miturgidae, it belongs to a family of wandering spiders that actively hunt prey rather than building webs to capture them.
Zuphioides magnum
Zuphioides magnum is a ground beetle species in the family Carabidae, first described by Schaeffer in 1910. It belongs to the tribe Zuphiini within the subfamily Dryptinae. The species is recorded from the United States, though specific details about its biology and ecology remain poorly documented in the available literature.