Family Tipulidae | Order Diptera Genus Dictenidia Rank Species | |
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Similar Ctenophora (Ctenophora) pectinicornis, Tanyptera, Ctenophora, Tanyptera atrata, Nephrotoma quadrifaria | ||
Dictenidia bimaculata is a species of cranefly which is widespread throughout the Palaearctic.
In the genus Ctenidia the fourth and succeeding segments of the antennae bear a long basal process and a shorter subapical one. Female antennae with flagellar segments simple, and, apart from the first, short and roundish, broader than long. C. bimaculata Linnaeus is a shining, black species ; the thorax is black, with more or less extensive orange markings.The abdomen is entirely black in the male, black with anterior orange markings to segments,spreading laterally, in the female ; wings with two large dark brown spots, one extending down from stigmatic area to discal cell, the other, somewhat smaller, situated at apex ; legs orange, femora and tibiae black-tipped, tarsi blackish. The wing length is 10-15 mm.
C. bimaculata is found in damp woods from April to July