Forum Entomologi Italiani

I examined again the male which I had determined as Eutomostethus luteiventris.
The error which I committed was to use the presence or not of Prepectus (according to Benson, they are "not very clear").
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Capture in Cne : Châteauneuf-Val-de-Bargis (départ. Nièvre) - 01 VI 2011
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Biblio :
- Benson 1952 : RES - Handbooks ... Symphyta ... Vol. VI 2(a) & 2(b)

on the Net (see with http://www.royensoc.co.uk/content/out-print-handbooks )

- Enslin 1912/1918 : Die Tenthredinoidea Mitteleuropas
- Smith 1969 : Nearctic Sawflies ... Blennocampinae ... in” Technical Bulletin No. 1397 - U.S. Dept. of Agri.”

http://ageconsearch.umn.edu/bitstream/1 ... tb1397.pdf

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* Det. of sub-Family Blennocampinae (sensu Berland) , see :

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

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* Det. of Genus & species

Characteristics of our capture :

Vein A2 rectilinear.
The Veins M & 1m-cu do not converge the one on the other one.
Tergits marqued with orange-red.

I examined the descriptions of species ♀ which have the 3 characteristics above.
Namely : Pareophora pruni , Monophadnoides ruficruris , Monophadnus spinolae.
Pareophora pruni has :

The Tergit 1 & the last one black AND the black Femora (Except the knees yellow-reddish), our capture has no these colours.

Monophadnoides ruficruris has :

Antennae with 2nd segment at most as long as broad, longer for our capture.

Vein 2r interstitial with 3rm, our capture does not have the Vein 2r interstitial.

Monophadnus spinolae, our capture corresponds well to the descriptions of Enslin & Berland.

Of where the determination
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NB :
- The coloring of Thorax is variable : from completely black to almost totally red (var. ruberrima).
- Also, I observed on 3 other captures that the darkening of wings was variable (no always slightly as writes it Berland)
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spinolae was also captured in Italy mainland & Sicily