Posted by
eklans on 23-12-2019 12:09
#2
Hi Kacper, vespertinus has smaller teeth ventrally on the first tibia, is a bit smaller as pyri and the eyes are less protruding. I fear that the teeth are hidden and it's hard to decide about the size and the eyes - pyri seems to be more frequently so that I would save it as P. cf. pyri.
Eric
Posted by
eklans on 23-12-2019 14:17
#4
You will see these teeth on the tibiae of the forelegs on this image from wikipedia:
https://commons.wikimedia.org/wiki/File

hyllobius_pyri_(Linn%C3%A9,_1758)_female_(10570851896).png
It's on the ventral side - you cannot see it from above if the beetle is standing on it's feet.
Happy Holidays to you!