British Insects: the Families of Diptera
Adult insects. Slender-bodied; stilt-legged. The legs readily shed. Antennae 8–16 segmented; simple. The maxillary palps 3–5 segmented; drooping. Thorax with the dorsal suture continuous across the middle (and V-shaped). The dorsal suture neither V-shaped nor U-shaped. Wings with a discal cell; without a sub-apical cell; without a closed anal cell. Wing vein 6 present; reaching the wing margin. Wing vein 7 present; reaching the wing margin. Wings with the lower calypter much reduced or absent.
Larvae and pupae. The larvae aquatic, or terrestrial; phytophagous; eucephalic (caterpillar-like). The pupae without a puparium.
Classification. Suborder Nematocera; Division Tipulomorpha; Superfamily Tipuloidea.
British representation. 4 species in Britain. Genera 4; Cylindrotoma, Diogma, Phalacrocera, Triogma.
Illustrations. • Cylindrotoma and Diogma (from Walker).
To view the illustrations with detailed captions, go to the interactive key. This also offers full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting or lacking specified attributes, and distributions of character states within any set of taxa.
Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2003 onwards. British insects: the families of Diptera. Version: 1st January 2012. http://delta-intkey.com’.