Bittacidae Enderlein 1910
Bittacids can be recognized by their single raptorial tarsal claw and by their long legs and wings that give them a superficial resemblance to crane flies (Tipulidae: Diptera). In Ontario there is only one genus (Bittacus) and two species which can be separated without the use of genitalic characters.
The only three species of Bittacidae in Ontario are easily distinguished on the basis of wing colour, venation and pattern as shown in the photos here. All three species are predators found hanging from plants (never standing on vegetation like Panorpidae) in a variety of habitats, but especially in moist forests with patches of nettles.
Bittacus pilicornis Westwood 1846
Diagnosis: Wings yellow without margined crossveins. Anal crossvein present. Pterostigma yellow. Legs and abdomen yellow to light red. Antenna plumose.
B. pilicornis is the least common of the three Ontario Bittacus species. It has only been collected from southern Ontario in Essex Co., and Haldimand Co., though it is also known from several localities in Quebec.