Simple predator fly

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Simple predator fly
Simple predator fly, female with a captured small butterfly from the Crambidae family.

Simple predator fly, female with a captured small butterfly from the Crambidae family .

Systematics
Class : Insects (Insecta)
Order : Fly (Diptera)
Subordination : Flies (Brachycera)
Family : Predator flies (Asilidae)
Genre : Machimus
Type : Simple predator fly
Scientific name
Machimus rusticus
( Meigen , 1820)

The simple predator fly ( Machimus rusticus ) is a fly from the family of predator flies (Asilidae).

features

The flies reach a body length of 15 to 25 millimeters. The anterior femora are only hairy and not bristled on the underside. All femora are black, the tibiae are red at the base. The leg bristles are black and yellow, the scutum has mostly yellow bristles. The second antennae ( postpedicellus ) is significantly longer than the first two antennae .

distribution and habitat

The distribution area is Palearctic and extends from England and Spain to the east to Kazakhstan . In Germany, the species is apparently absent in the north-west, the currently known north-west limit of distribution runs roughly in the extreme south of Mecklenburg-Western Pomerania through south-east and south Lower Saxony and through northern North Rhine-Westphalia.

The species inhabits open, dry and warm biotopes in Central Europe, especially poor and dry grasslands with a closed vegetation cover.

Way of life

The information on the flight time varies in the literature and ranges from May to August at the most, but the period June to August is usually given. As with many predator flies, the range of prey is very broad; beetles , two-winged birds , hymenoptera , butterflies and dragonflies have been identified as prey .

Eggs are laid on flowers. The larval development comprises seven larval stages and takes one to two years. The larvae live in the soil and feed entomophagus from the second larval stage , apparently mainly on the larvae of scarab beetles (Scarabaeidae).

swell

Individual evidence

  1. ↑ Fritz Geller-Grimm: Photo atlas and identification key for predatory flies in Germany (Diptera: Asilidae) - genus Machimus . 2003 (online, accessed June 13, 2011)
  2. ↑ a b c d Fritz Geller-Grimm: Autecological studies on robber flies (Diptera: Asilidae) on inland dunes of the Upper Rhine Valley Trench. Diploma thesis, Institute for Zoology at the Technical University of Darmstadt, 1995, pp. 56–58. (online as PDF)
  3. ↑ a b c D. Wolff: On the knowledge of predatory flies in Germany, Version: 4.12.0. - Machimus rusticus. (online, accessed June 13, 2011) .

literature

  • Fritz Geller-Grimm: Autecological studies on predatory flies (Diptera: Asilidae) on inland dunes of the Upper Rhine Valley Trench. Thesis. Institute for Zoology at the Technical University of Darmstadt, 1995, OCLC 918241826 . (online as PDF)

Web links

Commons : Machimus rusticus  - Collection of images, videos and audio files