Common Caddisflies

Leptoceridae Leach in Brewster, 1815

Type genus: Leptocerus Leach in Brewster, 1815

(after Neboiss 1977): Ocelli absent. Anterior wings long, narrow, venation sometimes irregular in males; discoidal cell closed; median cell always absent. Posterior wings either narrow or wide, depending on species; discoidal cell closed in subfamily Triplectidinae, open in subfamily Leptocerinae; one or two short rows of curved  macrotrichia or hamuli at about the middle of the costal margin. Antennae long and slender. Maxillary palpi slender, 5-segmented in both  sexes, covered with dense hairs, segment 5 flexible. Mesoscutum and scutellum without warts.