Callopistromyia annulipes
Peacock fly ( Callopistromyia annulipes ) on Buchenholzklafter
The peacocks fly ( Callopistromyia annulipes ) is a jewelry fly of the subfamily Otitinae. The specific epithet annulipes means "with ringed legs ", the common name is the translation of the English name " pea -cock fly" and refers to the striking wing movements of the male.
The genus Callopistromyia is originally represented by two species only in the Nearctic fauna. The peacocks fly ( Callopistromyia annulipes ) but has since been found in Europe, where it was introduced as neozoon and is undergoing expansion. The genus was named by Loew 1873 Callopistria, but this name was already assigned to a genus of butterflies and therefore had to be changed.
Features of the Imago
The fly reaches a height of 3.5 to 5.5 millimeters. The body is dull gray with numerous brown Tomentflecken.
The head is slightly higher than long and about 1.5 times as wide as high. He narrows forward. The eyes are only very slightly higher than wide. The forehead is flat with no center keel and viewed from the side curved inwards. The head shield is moderately strongly developed, from the side, slightly curved outwards. The sensors are of medium length and away from each other at the base, the sensor bristle is bald. The cheeks take up less than half the eye level.
The chest is longer than wide. The oval leaves are 2.1 times as long as wide. The wing vein radius 1 is provided with bristles short, in the central region ( Diskalzellen ) occupied the wings with numerous small dark spots and transparent, in the area of the front edge there is a larger spots. The spots are loosely distributed and do not form transverse bands. The gray and continuous matte top of the chest is covered with tiny black hairs.
The abdomen is also mottled dark. The abdomen pages are hairy. The rails are ringed yellow and dark three times at the base and near the tarsi.
Biology
The animals were found dead or dying wood of various trees (Acer negundo, Populus deltoides, Robinia pseudacacia ). The larvae eat the excrement holzbohrender insects. The males beat the wings like a peacock to top
Dissemination
The species is native to North America and reported from Canada and the United States. Let Numerous discoveries suggest that it is also understood there to spread. The first published report from Europe dates from 2007 and refers to the discovery of a female in a vineyard in southern Switzerland. Are the first reports of 2006 Hanhofen, 2008 in Bonn and present in Rottenburg and Gelsenkirchen in 2009 from Germany. The determination of the request Taxobildes was classified by the dipteran forum as initial reports from France (15 July 2011)