| Dioctria bicincta | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Diptera |
| Family: | Asilidae |
| Genus: | Dioctria |
| Species: | D. bicincta |
| Binomial name | |
| Dioctria bicincta Meigen, 1820 | |
| Synonyms [1] | |
Dioctria infuscataMeigen, 1820 | |
Dioctria bicincta is a species of robber fly classified in the subfamily Dasypogoninae of the family Asilidae. [2] [ unreliable source? ]
This species can be found in most of Europe (Austria, Belgium, Croatia, France, Germany, Greece, Italy, Poland, Spain, Switzerland, Netherlands and former Yugoslavia). It is not present in the British Islands. [3] [4]
Dioctria bicincta can reach a body length of about 7–9 mm (0.28–0.35 in). [4] These robber flies have a more or less shiny black thorax. Also the abdomen is usually black, sometimes with partly reddish marks on the middle tergites. In males the hind metatarsi are very swollen. [5] The front and middle tibia and femora are mainly yellowish. This species is rather similar to Dioctria linearis (drawing of the abdomen and color of the legs are almost identical) [5] and to Dioctria gracilis (females of these two species cannot be easily separated). [6] [7]
Adults can be found from the end of May to mid-July. [5] These insects are predators on other insects that they hunt from leaves of bushes and trees. [5]
Flies are insects of the order Diptera, the name being derived from the Greek δι- di- "two", and πτερόν pteron "wing". Insects of this order use only a single pair of wings to fly, the hindwings having evolved into advanced mechanosensory organs known as halteres, which act as high-speed sensors of rotational movement and allow dipterans to perform advanced aerobatics. Diptera is a large order containing an estimated 1,000,000 species including horse-flies, crane flies, hoverflies and others, although only about 125,000 species have been described.
The Asilidae are the robber fly family, also called assassin flies. They are powerfully built, bristly flies with a short, stout proboscis enclosing the sharp, sucking hypopharynx. The name "robber flies" reflects their expert predatory habits; they feed mainly or exclusively on other insects and, as a rule, they wait in ambush and catch their prey in flight.
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