Capture in Cne : Pontoise (Dépt. Val-d’Oise) - 08 VII 1992
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Biblio :-
Benson 1958 : RES - Handbooks ... Symphyta ... Vol. VI 2(c)
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Lacourt 2006 : Descriptions de 2 nouvelles espèces ... genres … in “Recent Sawflies Research ... - p.235/240 + pl.3”
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Muche 1970 : Nematinae ... in “Entomologische Abhandlungen - Band 36 Supplement IV - p.157/231"
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Muche 1974 : ... Nematus ... in “Deutsche Entomologische Zeitschrift - N.F. Band 21 - p.1/34”
[The interest of the works on Nematinae of Muche, is that all of the European species (at the date of the draftings) are quoted, besides those of Central Europe of whom it gives keys, but also those who are localized outside the Central Europe and whose it gives the geographical location.]
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Prous & ali 2014 : The genera of Nematinae ... in ” Journal of Hymenoptera Research 40 - 1-69”
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Zhelokhovtsev 1988 : in Medvedev (Ed.) - Keys ... USSR. III. Hym. Part 6 Symphyta (Translation in English 1994)
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[
The use of the Key of Berland 1947 leads to errors of determination]
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*
Determination of sub-Family Nematinae (with radial Cell not divided), see :
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Determination of Genus (
sensu Prous & ali) of West Palaearctic
A Genus created (after the work of Muche 1974) by Lacourt can be confused with a Nematus, that is Dinematus with apex of Clypeus truncated straight.
Our capture (see the photo of Clypeus) does not belong to this Genus.
- Other Characteristics of our capture :
Tibiae 3 with a longitudinal furrow (see photo).
Forewings with 3 radial Cells closed [if 2 radial Cells (Vein 2r-m absent) then Euura (pars)].
Thus
Nematus.
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Determination of species (with key of
Muche 1974)
- Characteristics of our capture :
Stigma of Forewings pale with a brownish spot.
Tibiae 3 blackish.
Thus
tibialis.[To help the determination, I added the photo of the apex of the Abdomen (the shape of the Sawsheat & the length of its hairs are important criteria for the Nematinae)].
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tibialis was also captured in Italy
