Thread subject: Diptera.info :: Siphona geniculata
Posted by Roger Thomason on 16-10-2009 18:26
#1
About the only fly seen in the garden today, other than the odd Anthomyiidae and Bluebottles :|.
It is the only species of Tachinidae recorded in Shetland. Correct ID??
Edited by ChrisR on 16-10-2009 21:25
Posted by Roger Thomason on 16-10-2009 18:27
#2
2
Posted by lagura on 16-10-2009 19:01
#3
Well, it's definitely a Siphona :)
Edit: And it could very well be geniculata
Edited by lagura on 16-10-2009 19:16
Posted by Roger Thomason on 16-10-2009 19:18
#4
Well spotted Lars....you
are getting good at this. What is your secret. :P
Roger
B)
Posted by lagura on 16-10-2009 19:20
#5
If I told you that it would no longer be a secret :D
Posted by ChrisR on 16-10-2009 21:25
#6
Hmm, certainly
Siphona ... but can you see median marginal bristles on T1+2? Most
S.geniculata (and some
cristata) have them. The main problem is that in the north you get quite a few very interesting/rare species and the situation isn't as clear-cut as it is in the south :)
Posted by Roger Thomason on 16-10-2009 23:09
#7
Thanks Chris
I wouldn't know a median marginal bristle if it poked me in the eye, sorry mate...:| I'll never get into the terminology used for flies,,,,:@
Regards nevertheless, Roger
Posted by ChrisR on 16-10-2009 23:16
#8
Don't worry Roger - the median marginals on T1+2 are easy ... it's the ones that this fly doesn't have :D ;) T1+2 is the first segment of the abdomen (closest to the thorax) that has that funny excavation in the middle - very clear in the first photo. I don't think it has these bristles but I am still left not much the wiser ... even with a specimen I am very bad at identifying
Siphona :(