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Tipulidae

Mosquito-like, fragile, large flies with a V-shaped suture on the mesothorax. No ocelli. Complete wing venation.

Ptychopteridae

Black and white banded (at least in the common genus Bittacomorpha). 1 anal vein reaching margin. No closed discal cell.

Psychodidae

Hairy flies. Pointed wings held roof-like over abdomen. Veins parallel, few crossveins. No ocelli.

Bibionidae

Often have pterostigma. Short antennae, low on head. Complete wing venation. Tibial spurs present. Legs often bristly. Ocelli present, clumped together.

Mycetophilidae

Mosquito-like, pale flies. Some have long antennae. Ocelli present but hard to see. Coxae very long, nearly as long as femora. Tibial spurs present.

Sciaridae

Small, mosquito-like flies with darkened wings. Ocelli present. "M" distinctly forked. Reduced venation, no discal cell. Eyes meet on top of head.

Cecidomyiidae

Small to very small fragile flies with long legs and antennae. Weak, very reduced wing venation. Eyes meet on top of head. Ocelli absent.

Culicidae

Slender, delicate flies with elongate mouthparts that form a beak. Scales on wings, body and legs. Long palpi, especially in males.

Simuliidae

Small, stout, dark, humpbacked flies. Short, moniliform antennae. Legs short and stout. Large anal area in wing.

Chironomidae

Mosquito-like flies, but without beak. Elongate front legs, narrow wings. Males with plumose antennae. No scales or hairs on wing. "M" unbranched.

Ceratopogonidae

Small to very small robust flies. Wings held horizontally, often patterned. Long antennae. Ocelli absent. 2 "M" branches.

Tabanidae

Medium to large flies. Terminal segment of antennae annulated. Empodia pulviliform. Large calypters. R4 & R5 divergent, enclosing wing tip.

Rhagionidae

Slender flies with pointed abdomen. Antennae with long style. Empodia puliviliform. Wing with 5 posterior cells.

Therevidae

Long-lived flies with bristle-like empodium. Rs 3-branched, 5 posterior cells. Eyes often holoptic. Antennae with short style, or annulated.

Stratiomyidae

Flies that are often mimics of bees or wasps. Prominent antennae with 3rd segment distinctly annulated. Small discal cell. R crowded to anterior margin. Empodia pulviliform.

Asilidae

Large, robust flies with elongate pointed abdomen. Top of head concave (sunken vertex). Hairy body, "moustache" present. Empodia bristle-like. Rs 3-branched.

Bombyliidae

Stout, hairy flies with outstretched wings, often patterned. Elongate mouthparts. R2 + R3 & R4 sinuate (s-shaped). 3-4 posterior cells. M-Cu present.

Bombyliidae

Stout, hairy flies with outstretched wings, often patterned. Elongate mouthparts. R2 + R3 & R4 sinuate (s-shaped). 3-4 posterior cells. M-Cu present.

Bombyliidae

Stout, hairy flies with outstretched wings, often patterned. Elongate mouthparts. R2 + R3 & R4 sinuate (s-shaped). 3-4 posterior cells. M-Cu present.

Bombyliidae

Stout, hairy flies with outstretched wings, often patterned. Elongate mouthparts. R2 + R3 & R4 sinuate (s-shaped). 3-4 posterior cells. M-Cu present.

Bombyliidae

Stout, hairy flies with outstretched wings, often patterned. Elongate mouthparts. R2 + R3 & R4 sinuate (s-shaped). 3-4 posterior cells. M-Cu present.

Bombyliidae

Stout, hairy flies with outstretched wings, often patterned. Elongate mouthparts. R2 + R3 & R4 sinuate (s-shaped). 3-4 posterior cells. M-Cu present.

Bombyliidae

Stout, hairy flies with outstretched wings, often patterned. Elongate mouthparts. R2 + R3 & R4 sinuate (s-shaped). 3-4 posterior cells. M-Cu present.

Bombyliidae

Stout, hairy flies with outstretched wings, often patterned. Elongate mouthparts. R2 + R3 & R4 sinuate (s-shaped). 3-4 posterior cells. M-Cu present.

Bombyliidae

Stout, hairy flies with outstretched wings, often patterned. Elongate mouthparts. R2 + R3 & R4 sinuate (s-shaped). 3-4 posterior cells. M-Cu present.

Bombyliidae

Stout, hairy flies with outstretched wings, often patterned. Elongate mouthparts. R2 + R3 & R4 sinuate (s-shaped). 3-4 posterior cells. M-Cu present.

Bombyliidae

Stout, hairy flies with outstretched wings, often patterned. Elongate mouthparts. R2 + R3 & R4 sinuate (s-shaped). 3-4 posterior cells. M-Cu present.

Bombyliidae

Stout, hairy flies with outstretched wings, often patterned. Elongate mouthparts. R2 + R3 & R4 sinuate (s-shaped). 3-4 posterior cells. M-Cu present.

Bombyliidae

Stout, hairy flies with outstretched wings, often patterned. Elongate mouthparts. R2 + R3 & R4 sinuate (s-shaped). 3-4 posterior cells. M-Cu present.

Bombyliidae

Stout, hairy flies with outstretched wings, often patterned. Elongate mouthparts. R2 + R3 & R4 sinuate (s-shaped). 3-4 posterior cells. M-Cu present.

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