Forum Entomologi Italiani

Capture in Cne : Roussillon-en-Morvan (Dépt. Saône-et-Loire, at an altitude of 815 m) - 08 IV 2009
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Biblio (main) :
- Benson 1952 : RES - Handbooks ... Symphyta ... Vol. VI 2(b)

http://www.royensoc.co.uk/sites/default ... art02b.pdf

- Berland 1947 : Faune de France ... Hymenoptera Tenthredoïdes

http://www.faunedefrance.org/bibliotheq ... doides.pdf

- Haris 2000 : in “Folia Entomologica Hungarica, LXI - p.95/148", Study on the Palaearctic Dolerus ...
- Lacourt 1999 : in “Ann. Sté Ent. de France NS.- 35(2) - p.173/181", Remarque sur les groupes … du genre Dolerus …
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Drawing from Berland.
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* Determination of sub-Family Dolerinae, see :

viewtopic.php?f=370&t=21257&hilit=tenthredinidae

Our capture has the Tegulae & the Legs entirely black.
Thus, it is a Dolerus.
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* Determination of species

I excluded the species captured only in Russia and farther in the East, & those endemic of Spain,
and D. phalipi (Length. ?), endemic of the south of French Massif Central & of Pyrenees, the Larva parasite Festukia eskia (graminaceous which is known only in these 2 regions)

Characteristics of our capture :

The length of Insect is < 8 mm (that of our capture is 6.5/6.6 mm).
Body entirely black, except : the Tergit 1 with a clear membraneous triangle, the Tergit 8 partially clear & the Cenchri.
Head with whitish hairs.
Wings hyaline (not infuscate).
The Tergit 8 without, on its apical margin, a vertical clear membrane in the shape, of triangle(s) (as the drawing of a sp. ♂) or of lunula

A single species has these characteristics, namely : aeneus (Body slender & elongated, the Head is narrowed behind Eyes).

[We could confuse this species with the sp. altivolus, but this one has a length ≥ 7.5 mm and its Body is more stout.]

Of where the determination.
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aeneus was also captured in Italy