Posted by Renko on 31-01-2020 22:54
#1
Hello,
I found galls on ferns, at Bonningues-lès-Ardres, in North of France, the 22 May 2018, in a deciduous forest mainly composed of
Fagus sylvatica, in an undergrowth with lots of
Rubus sp. and Ferns, which seemed very similar to the one of Chirosia betuleti. But sadly, I lost my pictures of the galls, and I don't remember the color of the larva.
The adults have emerged the 10 april 2019 (Maybe a bit too soon in the season ?)
I first thought this was the female and the male
Chirosia betuleti, but could it also be
Chirosia crassiseta ?
Thanks in advance for any help !
Best regards,
Renko
Posted by John Carr on 01-02-2020 00:27
#5
If you have a more lateral picture check for discal bristles on tergites 3-5.
Posted by Renko on 02-02-2020 13:47
#6
Thanks you John for your reply ! :)
Sadly, I didn't take any more lateral pictures at that time and I don't see well the discal bristles on tergites 3-5 :o