Forum Entomologi Italiani

So che sono complicati per cui ho tentato di evidenziare qualcosa degli apparati interni. mm 6. Grazie per i pareri.

We should see the whole pygophore to distinguish close species. Alsa a photo of pronotum from lateral view would be helpful.

Thanks Baris; i try the best. I also want to show a female, I think, collected in the same sample; it shows different aspect of the lateral view of pronotum, with a anterior lobe protruding toward ventral side, absent in this male: same or different species?

Here is a female I told above, lateral, underside and upperside view. In Italy there are 7 species:
- angustus (N?, S, Si, Sa)
- brachynotus (N)
- denticollis (N, S, Si, Sa)
- duplicatus (S, Si, Sa)
- griseus (N, S, Si)
- major (S)
- verbasci (N, S, Si, Sa)

Emblethis denticollis which has a dent in its collum ;)

There is also a 8. species known from Italy which is E. ciliatus.

So it is the same species but the male haven't the tooth or male is different species?
Anyway thanks in advance.

Male should also have a dent. Does the male not have a dent?

No, it hasn't: for lateral view please check last picture before female's ones, and below for underside and frontal view.
The image of pygophore actually shows the last two segments!

The male is a rare variant that does not have a dent. But it is still E. denticollis, the pygophore confirms the ID.