Thread subject: Diptera.info :: BIG robberfly for ID

Posted by Isidro on 22-10-2007 19:13
#1
Yesterday I go to the field, between "Burgo de Ebro" and "Salada de Mediana", in the middle Ebro valley, Aragon, Spain. The habitat is dry steppe-land, dominated by Artemisia herba-alba, Lygeum spartum, Rosmarinus officinalis, Salsola vermiculata, Gypsophila hispanica and other xeric plants. The fly sizes about 45 mm. It lokks like Asilus in wing colour and size, but the abdomen is entirely black and very sharp-shaped.

Someone could get me an ID?

aycu17.webshots.com/image/30256/2002495160693366265_rs.jpg
aycu40.webshots.com/image/31839/2002482430240133139_rs.jpg
aycu17.webshots.com/image/30256/2002461840794645171_rs.jpg

Thanks ;)

Posted by amalia_raluca on 22-10-2007 19:27
#2
Asilus crabroniformis?

Posted by Isidro on 22-10-2007 20:57
#3
No... I said in the text "looks like Asilus but the abdomen is ENTIRELY BLACK (half yellow in Asilus crabroniformis) and very sharp-shaped (round-ended in Asilus crabroniformis).
Thanks...

Posted by Danny Wolff on 23-10-2007 20:06
#4
Hello,

female Asilus barbarus

Greetings, Danny Wolff

Posted by Isidro on 25-10-2007 00:37
#5
Sure? Asilus not had yellow in the abdomen?


Many thanks!!!!!!

Posted by Danny Wolff on 25-10-2007 19:52
#6
Hello,

yes, I'm sure. The last abdominal tergites are yellow in Asilus crabroniformis as you have already mentioned, but in barbarus these are completely dark. There are more differences, e.g. the colour of the thoracic plate.

Greetings, Danny Wolff