Loew-1873
Guides
Rivellia conjuncta
Rivellia conjuncta is a species of signal fly in the family Platystomatidae, first described by Loew in 1873. Signal flies are recognized for their distinctive wing-waving behavior, which serves as intraspecific communication for mate recruitment. The genus Rivellia includes species associated with leguminous plants, with larvae typically feeding on root nodules containing nitrogen-fixing bacteria. Specific biological details for R. conjuncta remain poorly documented in available literature.
Tetanops luridipennis
Tetanops luridipennis is a picture-winged fly in the family Ulidiidae, originally described by Loew in 1873. The genus Tetanops comprises approximately six species, with larvae that develop in the roots of living plants—a trait unusual among ulidiids, which are typically associated with decaying organic matter rather than living plant tissue. The specific epithet "luridipennis" refers to the yellowish or sallow coloration of the wings.
Tritoxa
Tritoxa is a genus of picture-winged flies in the family Ulidiidae, established by Loew in 1873. The genus contains seven described species distributed in the Nearctic region, with two species described in 2021. Species identification relies primarily on wing pattern differences, though examination of male genitalia is necessary for confident identification of certain sympatric species. One undescribed species based on female specimens is known from California and Nevada.
Tritoxa incurva
Tritoxa incurva is a species of picture-winged fly in the family Ulidiidae, originally described by Loew in 1873. It is one of seven recognized species in the Nearctic genus Tritoxa, distinguished by its bold wing patterns. The species occurs in the eastern United States, where adults are active from May through October in grassy meadow habitats.