Forum Entomologi Italiani

Biblio :
Benson - RES - Handbooks ... Symphyta ... Vol. VI 2(b) - 1952
For the other bibliographical references and the keys of determination, see : viewtopic.php?f=11&t=25189
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Ciao,

# 2732 ♂ captured at an altitude of 1310/1320 m. in Cne : Pontarlier (Dépt. Doubs - France) - 13.06.1993
# 3769 ♀ captured in Cne : St-Germer-de-Fly (Dépt. Oise - France) - 01.08.2004

These captures are Tenthredo s.l..
- The abdomen is black & red and there is a white spot on each side of 1st tergite (see the photos)
- The antennae are black & white.
It thus acts of sub-genus Tenthredella.
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♂
- The tegulae are red-orange (see the photo)
♀
- The tegulae are red-orange (see the photo), This peculiar colouring is not always present.
- The scutellum is not marked with white (see photo)
- The stigma of forewings is unicolorous.

It can perhaps be bordered by a narrow band, dirty white, along the costal vein (I did not saw it on the ♀, but seen on the ♂)

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Finally :
Tenthredo (Tenthredella) colon ♂ & ♀ Che vivono in Italia

Saluti.

D & JP Balmer