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Cratichneumon rufifrons (Grav. 1829) ♂ - Ichneumonidae - Ichneumoninae - Oxypygi (sensu Wesmael)

9.VII.2013 - FRANCIA - EE, Forest of St Prix (Dipart. Nièvre)


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MessaggioInviato: 09/05/2015, 21:18 
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Iscritto il: 22/11/2010, 18:16
Messaggi: 1089
Località: Donzy (Bourgogne : Dipart. Nièvre) - Francia
Nome: Jean-Pierre Balmer
Capture in “Forêt de St Prix” (Départ. Nièvre - France) - 09 VII 2013
At the place there is a cold micro-climate which is the same that the one who dominated 5000 years ago.
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Biblio:
- Berthoumieu 1894/1897 : Ichneumonides d'Europe et des pays limitrophes
- Constantineanu 1959 : in "Fauna RPR - Vol. IX - Fasc. 4", ... Tribul Ichneumoninae Stenopneusticae" (in Rumanian)
- Morley 1911-1914 : in "Ichneumonologia Britannica" - Vol. I
- Schmiedeknecht 1906/1908 : in "Opuscula Entomologica" - Part 1/6 (p.1/413)
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Our capture is a ♂, because there are 8 visible Sternits, the ♀ having only 6 visible Sternits.
(I was not able to make a good photo)
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The Genera are sensu Constantineanu.
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It is an Ichneumoninae, an Oxypygi Wesmael or an Amblypygi Wesmael.
No criterion, allowing to know to which sub-Tribe belongs a species, is decisive alone.
---
Let us see the characteristics allowing to find the sub-Tribe to which belongs our capture :
- The Sternits 2/4 are longitudinaly folded (I was not able to make a good photo).
    It excludes the Amblypygi : Amblyteles (Otherwise the coloring is different), Automalus, Catadelphus, Limerodes, Trogus
- The antennal Segments are not dilated of external side.
    It excludes the Amblypygi : Hypomecus
- The Clypeus has not an apical tuber.
    It excludes the Amblypygi : Acolobus, Listrodromus
- The Tergits are entirely black.
    It excludes the Amblypygi : Hybophorus, Neotypus
- The Pronotum is not interrupted by a tuber.
    It excludes the Amblypygi : Anisobas
- The Tergits are not separated by a deep furrow.
    It excludes the Amblypygi : Dinotomus
- The Legs 2 are not black & The Sternits 1-2 are not yellow.
    It excludes the Amblypygi : Hepiopelmus
Pïthotomus ♂ : I did not find his description, but the Genus was captured only in Armenia, Bulgaria, Romania and Turkey.

Thus our capture is not an Amblypygi, but an Oxypygi.
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The additional criteria allowing to identify the capture are :
- The Antennae are dorsally black
- The Thorax is dorsally black, excepted : Pronotum, Tegulae & Scutellum
- Femora 2 : the internal side is black-reddish, the external side is yellowish
- Femora 3 : black
- Tibiae 1-2 : yellowish
- Tibiae 3 : yellow, apicaly ringed with black

We obtain, after a lot (...) of stages, the identification.
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rufifrons was also captured in Italy


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