Picture-winged Flies (Ulidiidae) - 75 Species, Identification & Facts

Chaetopsis aenea

Identification: This species has red legs, three complete wing bands, and about five pairs of fronto-orbital bristles plus two small frontal bristles. It is one of two species found in salt marshes.

Chaetopsis apicalis

Identification: In most of its range the only member of the genus with only a single dark band, at the apex of the wing (hence the species name). In the northern part of its range, Massachusetts to Maine, the preapical band found in most other speci

Chaetopsis debilis

Identification: Wing with 3 bands, legs pale, base of abdomen orange. This species may end up being a synonym of C. massyla (based on unpublished work by Steyskal).

Chaetopsis massyla

Identification: Two apical wing bands broadly joined along wing margin, first band nearly complete, legs dark, inhabitant of fresh water wetlands.

Cornsilk Fly

Euxesta annonae

This is the form traditionally known as Euxesta annonae . The name has been misused. The type specimen of annonae is not the same as the traditional concept of the species. (It is the same as eluta Loew.) Specimens under this name in museum colle

Euxesta notata

Identification: Distinguished from other Euxesta by the combination of Apparently cell sc may be slightly darkened, giving the basal band an "L" shape, possibly only in males.

Euxesta pechumani

Identification: Wing pattern similar to notata , with the basal crossband longer (reaching or crossing R4+5). Abdomen entirely dark (vs. yellow tipped in female notata ).

Euxesta quaternaria

Identification: Four short wing bands, the third more or less triangular and usually not reaching vein dm-cu. Female abdomen mostly yellow, black at base.

Cornsilk fly

Euxesta stigmatias

· Internet References Representative Images Classification Kingdom Animalia (Animals) Phylum Arthropoda (Arthropods) Subphylum Hexapoda (Hexapods) Class Insecta (Insects) Order Diptera (Flies) No Taxon ("Acalyptratae")

Haigia nevadana

Identification: An unusual, but not unique, character is the approximation of the r-m and m-cu crossveins.

Herina frondescentiae

This is a very distinctive picture-winged fly. Its wings are patterned with wide dark bands. One of the smallest picture-winged flies, 3-3.5mm. Typically found in wet, rush-dominated habitats and brownfield sites. The larvae are belived to develop in

Herina nigrina

A relatively large picture-winged fly (to 6 mm) with a unique wing pattern comprised of a dark tip, and darkened outer crossvein and an L-shaped mark that occupies the costal cells but then extends at a right angle to encompass the inner crossvein. T

Melieria crassipennis

Length: 10mm. This species has spotted wings that help with identification. It also has a square-like head with a pale frons. Very similar to Melieria omissa but this species is usually only found in coastal areas. Unless identified by a recognised e

Notogramma purpuratum

Identification: Pale spot on edge of wing at end of R1; mesopleura at most thinly pruinose, without pattern of dark spots. (Steyskal, 1963)

Otites guttatus

A fly with brown mottled wings, a pale brown abdomen and greyer thorax. Unless identified by a recognised expert, a photo is required. If the photo doesn't show the key ID features then in the comments box describe the size and identifying characters

Physiphora alceae

One of two clear-winged Ulidiids in Britain (the other is Ulidia erythrophthalma ). Physiphora alceae usually has a metallic-green thorax, concave face profile and pale fore tarsi. The eyes can appear green and purple-banded in live specimens. Ulidia

Pseudotephritis approximata

Identification: Original description (Banks, 1914): Similar to P. vau Say, but larger and marks on the wings different. Head and thorax marked as in P. vau , the same large brown spots, but on thorax the minute brown marks are rather more numerous. O

Seioptera colon

Identification: Humeral cell and base of costal cell dark (Steyskal 1956)

Seioptera vibrans

Length 5 to 6 mm. This is a picture winged fly with a shiny bulbous body and two strong dark 'shades' on each wing with one at the wing tip the other on the top edge. Unless identified by a recognised expert, a photo is required. If the photo doesn't

Tetanops luridipennis

Identification: Frons with contrasting red central stripe and no black stripes (but with spotted sides), wing without or with very faint dark spots, femora mostly black, front and hind tibiae brown.