Barichneumon sensu Perkins--> Coelichneumon M impressor CThi

Barichneumon sensu Perkins--> Coelichneumon M impressor CThi

Postby rafael_carbonell on 02 Sep 2017, 01:15

I have problems to separate Protichneumonini to Ichneumonini, but this one looks to me as Barichneumonsensu Perkins, The problem is to go further. Looking at the book of Ceballos (1924) the smooth superomedia area is typical in Coelichneumon impressor, but this is not enough to be sure of what it is.

Adult found drowned on 2007 [IBERIAN PENIINSULA. CATALONIA: Girona: Beuda, 395 m a.s.l.] Sex uncertain as there are six visible sternites, no ovipositor visible (may be the apex is missing?), but a scate or 7th tergite present. Total length 14 mm. HEAD: Antenna with the flagellum black above, with 44 flagellomeres. Antenna widened in the middle, narrowed apically. Mandible bidentate, not twisted, narrowed apically. Genal carina meeting the hypostomal carina at least at a short distance from the base of the mandible. Face with only the orbits ivory. Clypeus truncated. MESOSOMA: Transverse groove of pronotum without an interruption, with some yellow spots. Scutellum convex, with a transverse ivory spot in the middle. Propodeum: Area basalis with a median tubercle or carina projecting into the basal groove. Area superomedia transverse, subcordiform (19/40 mm long, 27/40 mm wide), rounded anteriorly, centrally smooth. Lateral carina of the petiolar area longer than the costula. Lateral and posterior edges of area dentipara with raised keels. METASOMA: Basal third of petiole as high as broad. Postpetiole with lateral and middle area differentiated; medially striate-punctate and laterally punctuated. Gastrocoelus transverse and conspicuously impressed. Thyridiae more widely separated (33/40 mm) than a thyridia breadth (15/40 mm). Base of tergite 2 both rugose-striated, with some isolated punctures. Thyridia transverse and conspicuously near the base of tergite 2. Sternites 2 to 4 medially folded, ventrally carinated. Gaster not elongated but widened centrally. LEGS: Middle and hind femora distinctly thickened. Claws not pectinated. NOTE: Description following Ceballos (1924) and Perkins (1959, 1960). Following the first we get to the old genus Pterocormus. It looks like Coelichneumon impressor as the superomedia area is more smooth than other propodeum areas. As area basalis has a median tubercle pointing anteriorly we can conclude is Barichneumon s.l., sensu Perkins, but this genus has separated in some other genus.
Attachments
Coelichneumon impressor 20070626 m MT1M.jpg
Coelichneumon impressor 20070626 m MT2M.jpg
Last edited by rafael_carbonell on 03 Sep 2017, 20:22, edited 1 time in total.
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Re: Barichneumon sensu Perkins

Postby Camille Thirion on 02 Sep 2017, 16:48

Coelichneumon Impressor perhaps?
Attention to the old authors: MEYER has reported it from Belgium, never seen in the collections and Zwakhals does not quote it either!
Last edited by Camille Thirion on 05 Sep 2017, 14:37, edited 1 time in total.
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Re: Barichneumon sensu Perkins

Postby rafael_carbonell on 03 Sep 2017, 20:19

Thank you very much, Camille!
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