Capture in Cne Roussillon-en-Morvan (Dépt. Saône-et-Loire - France) on 23 IX 2016
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Biblio. used :
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Berthoumieu 1894/1897 : Ichneumonides d'Europe et des pays limitrophes
[The keys of Valemberg 1983 are abstruse - Those of Constantineanu 1959 improve those of Berthoumieu but
I. extensorius is badly described (coloring of Legs)]
Attention : The names of Families, Tribes, Genera & other groups are here sensu Berthoumieu
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This Insect is an
Ichneumoninae ♂ (because its habitus) .
Then we follow the keys of
Berthoumieu since the p. 38 (pagination of the off-print)
Characteristics of our capture used for the identification :
A - The Petiole is not wider than thick (this exclude the
Platyuri Wesmael)
B - The Pronotum has no central tuber (this exclude in particular :
Anisobas)
C - The 3rd Sternite is wrinkled (this exclude :
Catadelphus arrogator, Trogus, Limerodes, etc)
D - The Tergites are not separated by a deep furrow (this exclude in particular :
Dinotomus)
E - Only Tergites 1 & 2 are yellow, the other black (this exclude :
Amblyteles excultus, A. gravenhorsti, etc)
F - The Antennae have not clear rings (this exclude in particular :
A. sputator)
G - The Face is black excepted the yellow internal Orbits (this exclude in particular :
A. armatorius)
H - The Mandibles are mainly yellow (this exclude in particular :
A. nonagriae)
Thus the capture is an
Oxypygi Wesmael .
Another characteristic useful for the identification is : the internal apex of the Tibiae 2 stained with black (see the photo).
Only 2 species have this peculiarity, namely :
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Ichneumon albicollis of which the Face is yellow, thus it is not our capture .
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I. extensoriusOf where the determination .
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extensorius è stato catturato anche in Italia
