Thread subject: Diptera.info :: Tachinidae - Dufouria chalybeata?

Posted by tim worfolk on 31-05-2010 20:54
#1

Seems to key out as Macquartia tenebricosa, can anyone confirm or correct?

31/5/2010; Devon, England

thanks

Tim

Edited by tim worfolk on 01-06-2010 07:00

Posted by ChrisR on 31-05-2010 21:48
#2

Was it really small? How about Dufouria? I am finding them all over the place recently :) The sloping head is quite distinctive.

Edited by ChrisR on 31-05-2010 21:53

Posted by tim worfolk on 31-05-2010 22:10
#3

Certainly small if it was a Macquartia, I see what you mean about Dufouria though, looks good. Here's another shot - poor quality though.

Tim

Posted by ChrisR on 31-05-2010 22:51
#4

Well, Macquartia & Dufouria are very close in the key and share the '3 scutellar bristles' feature. I haven't keyed any of mine yet but they look pretty identical to yours and I am calling mine Dufouria for now ... the only sticky bit is *which* Dufouria ... and there it gets more difficult but D.chalybeata is the commonest around here ;)

Posted by tim worfolk on 01-06-2010 06:59
#5

Tergite 2 appears to have a row of marginal bristles so must be Dufouria. As to which one; well mid tibia has at least 3 ad, there's a row of bristles on tergite 2, fore tibia seems to have 2 posterior bristles, costal spine doesn't appear to be shorter than r-m - all in all I'd the evidence points to chalybeata.

Tim