Forum Entomologi Italiani

Biblio.
- Benson : RES - Handbooks ... Symphyta ... Vol. VI 2(b) - 1952
- Blank & Ritzau : Die Tenthredopsini Deutschlands p.234/238 (in Pflanzenwespen Deutschlands ... Edit. Goecke & Evers . 1998)
- Weiffenbach : Die mitteleuropäischen Arten der Blattwespengattung Tenthredopsis O. Costa p.38/61 (in Mitt. Münchner ent. Ges.- vol. 28 . 1968)
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Ciao,
n° 3045 (♀) captured at an altitude of about 740 m. in Cne : songieu (Dépt. Ain - France) - 17.06.1995

One uses the keys (which I already sent to the forum) here after :
download/file.php?id=47394&mode=view and download/file.php?id=47396&mode=view
One finds that it is a Tenthredininae .
According to Benson p.109/112 : one is in the presence of a Tenthredopsis, because :

The 1st tergite does not have a medial furrow (which I could not photo because of the poor quality of my camera)

Now I will take the keys of Blank & Ritzau :
One observes that :

- The clypeus is regularly emarginated (See the mediocre photo because clypeus and labre are same color) and not wrinkled .
- The antennae are not black

If not : T. tarsata or T. tischbeinii
- The hypopygium is not very large (See the mediocre photo)
- The ventral part of the abdomen has 2 black lateral bands (See the lateral photo of abdomen showing one of the bands)

T. nassata ♀ does not have lateral band

See also: Weiffenbach - fig. 6 p.41.

Thus :
Tenthredopsis sordida (Klug 1817) ♀ Che vive anche in Italia .
..... OK ?

Saluti.

D & JP Balmer