British Insects: the Families of Diptera


L. Watson and M. J. Dallwitz


Cf. Periscelididae.

Life style non-parasitic.

Adult insects. Antennae 2–6 segmented; ‘modified’; aristate (the arista often plumose). The second antennal segment not grooved. The third segment not elongated. Ptilinal suture clearly defined. Post-vertical orbital bristles present; divergent. Mouthparts functional. The maxillary palps 1 segmented; porrect. Vibrissae absent. Thorax without a continuous dorsal suture; without well defined posterior calli. Wings without a closed anal cell (the cell not complete). The costa unbroken. Sub-costa apparent; joining vein 1 more or less where it joins the costa. Wing vein 6 falling short of the wing margin. Media-cubitus and radius-media cross-veins not both present, media and radius being fused. Tibiae without a dorsal pre-apical bristle. Hind tibiae without strong bristles in the basal 4/5.

Larvae and pupae. The larvae acephalic. The pupae enclosed within a puparium.

Comments. This description contains too much information derived via extrapolation from an assumed similarity to Periscelididae.

Classification. Suborder Brachycera; Division Muscomorpha Schizophora Acalyptratae; Superfamily Opomyzoidea.

British representation. 2 species in Britain. Genera 1; Stenomicra.

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.’.