Thread subject: Diptera.info :: Gender determination T. grossa

Posted by cyprinoid on 24-07-2010 11:57
#1

How do I determine the gender of Tachina grossa?

Posted by ChrisR on 24-07-2010 16:31
#2

The usual things ... presence/absence of: large male genital capsule; long pulvilli/claws; and wide/narrows frons.

Posted by cyprinoid on 24-07-2010 21:03
#3

Ok, thank you.
I have one that is quite a bit smaller than the others and has a lighter colour on the head. I thought maybe it could be a male.

Posted by ChrisR on 24-07-2010 21:05
#4

It's impossible to go on size or colour really - just check the features I listed and it should tell you :)

Posted by cyprinoid on 24-07-2010 21:51
#5

Yes, I should have added that with your help I see they are all females ;)