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,
# 4524 ♀ captured at an altitude of about 415 m. in Cne : Anost (Dépt. Saône-et-Loire - France) - 05.06.2008
This capture is Tenthredo s.l..
- The abdomen is black & red and without white spot on each side of 1st tergite (see photo)
- The antennae are black & white.
It thus acts of sub-genus Tenthredella.
- The stigma is yellowish-brown (dark-brown for balteata Klug)
- There is nether whitish spot on metapleuron nor on coxa 3
- eburneifrons Kirby (= lichtwardti Konow) (unknown in France and Italy) has a whitish spot on coxa 3.
- The antennae with segments : 1/5 black - 6/7 white - 8/9 sometimes blackened (as our capture)
- the antennae of eburnifrons can have same colouring.
Finally :
Tenthredo (Tenthredella) ferruginea Schrank 1776 ♀ Che vive anche in Italia
Nota :
You remark (photo 4524) the spectacular round notch to the base of clypeus.
To compare I added the photos of 2 clypeus of the same species ♀
- - photo 4523 (of bad quality) : the notch is smaller.
- photo 4479 : only two black marks are present.
Although n° 4523 & 4524 are followed, the 2 captures were obtained neither at the same place nor at the same altitude (difference of 400 m.)
Saluti.
D & JP Balmer
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