Thread subject: Diptera.info :: Tachinidae?
Posted by thomas@HK on 16-10-2007 15:15
#1
Would anyone help me to idenitify this fly?is it an Anthomyiddae spp.? it was caught on 16 Oct 2007 morning at rural area in Hong Kong. larva was hatched immediately after the eggs laid by the fly. it is about 20mm long. thx!
Edited by thomas@HK on 18-10-2007 18:20
Posted by Paul Beuk on 16-10-2007 15:34
#2
No, should be a tachinid.
Posted by crex on 16-10-2007 16:55
#3
Interesting to see some HK flies, thanks! :D
Unusual bend in M vein, I think.
Posted by Xespok on 16-10-2007 17:42
#4
Looks like one of the Dexiini, let us here also the more experienced people. Attract them by renaming your title to Tachinidae.
Posted by thomas@HK on 18-10-2007 18:19
#5
Thx all!!
how can we identify Tachinid spp. easily ? any obvious outlook feature? it that unusual M vein? i just know that its post-scutellum is prominently convexly developed and can only be examined under microscope!! any suggestion?
Xespok, any more information to show that it looks like Dexiini? hope to know more about that!! thx!!
Posted by ChrisR on 18-10-2007 19:40
#6
Tachinids are calyptrate flies with a bend in vein m (but not always) and with large, strong abdomenal bristles (but not always) and with a subscutellum (99%) which can't usually be seen in photos. :) The dexiines tend to be longer-legged than other subfamilies but again this isn't a rule - just a rule of thumb. ;)
Often tachinids lay eggs that immediately hatch - the emerged larvae then go looking for a host or lay on the food waiting for a host to come by.
I'm not sure about the oriental region but tachinids are often hard to identify outside Europe :( Theo will know more.
Posted by thomas@HK on 18-10-2007 20:00
#7
OH!! THX!! Raper!
Posted by Zeegers on 19-10-2007 11:12
#8
IN Europe, this would be Dexia vacua.
There are many Oriental species of Dexia.
SO I guess it's one of those.
Theo