Posted by Carlo Monari on 14-02-2017 10:05
#1
With reference to this post in FNM (Forum Natura Mediterraneo):
http://www.natura..._ID=281235
which is correct?
Edited by Carlo Monari on 14-02-2017 10:07
Posted by Nosferatumyia on 14-02-2017 10:55
#2
No doubts,
Trypeta immaculata and certainly
not Rhagoletis alternata, even from details of wing pattern.
Posted by Carlo Monari on 14-02-2017 14:28
#3
Thank you Valery. I agree about
not Rhagoletis alternata; my doubt was about
Rhagoletis meigenii, whose wing patter should match better. Can you tell me where to find a good key for the two genera?
Posted by Nosferatumyia on 17-02-2017 23:16
#4
In fact, the best is the key by Merz (1994) -- Swiss Keys, which covers N Italy as well. The easiest characters to tell
immaculata vs
meigenii is the rounded / sharp antennal flagellomere 1 and stigmatal crossband very wide at posterior wing margin and fused with the next one to form a "hook" / not so, not reaching posterior margin and separated from the preapical band.
Let me know if you need a pdf of Merz (1994).
Edited by Nosferatumyia on 17-02-2017 23:37