Predatory-fly
Guides
Thereva diversa
Thereva diversa is a species of stiletto fly in the family Therevidae, described by Coquillett in 1894. Stiletto flies are predatory insects characterized by their slender bodies and distinctive elongated mouthparts. The genus Thereva is one of the larger genera within the family, though specific ecological and behavioral details for this particular species remain poorly documented in available literature.
Thereva flavipilosa
Thereva flavipilosa is a species of stiletto fly in the family Therevidae, first described by Cole in 1923. The specific epithet 'flavipilosa' refers to yellowish hair. It is a member of a diverse genus of predatory flies known for their distinctive elongated mouthparts and agile flight. Documentation of this species is sparse, with limited observational records.
Thereva frontalis
Thereva frontalis is a species of stiletto fly in the family Therevidae, first described by Thomas Say in 1824. It belongs to the order Diptera and is part of the diverse assemblage of predatory flies within the superfamily Asiloidea. The species has been recorded from the northeastern United States, specifically from Vermont. Like other therevids, it likely exhibits the characteristic stiletto fly morphology with an elongated, slender body and predatory habits, though detailed ecological studies for this particular species remain limited.
Thereva hirticeps
Thereva hirticeps is a species of stiletto fly in the family Therevidae, first described by Loew in 1874. Stiletto flies are predatory insects known for their distinctive elongated mouthparts and agile flight. The species epithet "hirticeps" refers to hairy head characteristics. Very few observations of this species have been documented.
Thereva smithae
Thereva smithae is a species of stiletto fly (family Therevidae) described in 2005 by Holston and Irwin. As a member of this family, it belongs to a group of predatory flies known for their distinctive elongated mouthparts and agile flight. The species is named in honor of an individual with the surname Smith. Very few observations of this species exist in public databases.
Tipulogaster glabrata
Shellac-backed Pixie
Tipulogaster glabrata is a species of robber fly in the family Asilidae, commonly known as the Shellac-backed Pixie. The species is characterized by its distinctive appearance and predatory behavior typical of robber flies. It has been recorded in the northeastern United States, including Vermont.
Townsendia albomacula
Townsendia albomacula is a species of robber fly in the family Asilidae, described by Martin in 1966. The genus Townsendia is a small group of asilid flies primarily found in the Neotropical region. As with other robber flies, this species is presumed to be a predatory insect, though specific details about its biology remain largely unreported in the scientific literature.
Townsendia nigra
Townsendia nigra is a species of robber fly in the family Asilidae, first described by Back in 1909. As a member of the Diptera order, this predatory fly belongs to a family known for aggressive hunting behavior and strong flight capabilities. The species is part of the genus Townsendia, which contains multiple robber fly species distributed across North America. Specific ecological details about this particular species remain limited in available literature.
Trigonomiminae
Trigonomiminae is a subfamily of robber flies (Asilidae), a diverse group of predatory dipterans. Members are characterized by their predatory lifestyle and are part of one of the largest families of flies. The subfamily is distinguished by specific morphological traits that separate it from other asilid subfamilies. They occur across multiple continents and are active during warmer months.
Triorla
Triorla is a genus of robber flies (family Asilidae) containing approximately five described species. The genus was segregated from Efferia and is now widely regarded as valid. Triorla interrupta is the only species occurring in North America; other species are distributed from Panama to Argentina. These flies are predatory and share the general characteristics of Asilidae, including a robust body and predatory habits.
Triorla interrupta
Triorla interrupta is a species of robber fly in the family Asilidae. It is the only North American species in the genus Triorla, with a second species occurring from Panama to Argentina. The species is considered the most common robber fly in Arkansas and is widely distributed across eastern North America.
Willistonina bilineata
Willistonina bilineata is a species of robber fly (family Asilidae) first described by Williston in 1883. The species was originally placed in the genus Habropogon as H. bilineatus before being transferred to Willistonina. Asilidae are predatory flies known for their aggressive hunting behavior and distinctive morphology.
Xanthochlorus helvinus
Xanthochlorus helvinus is a species of long-legged fly in the family Dolichopodidae, described by Loew in 1861. The genus Xanthochlorus is characterized by yellowish-green coloration, reflected in its name (from Greek xanthos 'yellow' and chloros 'green'). As a member of Dolichopodidae, it belongs to one of the largest families of Diptera, known for their elongated legs and predatory habits.
Zabrops tagax
Zabrops tagax is a species of robber fly (family Asilidae) described by Samuel Wendell Williston in 1883. The genus Zabrops is a small group within the diverse Asilidae family, which comprises predatory flies known for their aerial hunting behavior. This species is known from very few records, with limited documentation of its biology and ecology. Robber flies in this genus are generally associated with arid and semi-arid regions of western North America.
Zabrops wilcoxi
Zabrops wilcoxi is a species of robber fly (family Asilidae) described by Fisher in 1977. The genus Zabrops is a small group within the diverse robber fly family, which are predatory flies known for their aggressive hunting behavior. This species is documented from 18 iNaturalist observations, indicating it is encountered in the field but remains poorly known in terms of detailed biology.