Skeloceras cerebrosum Delucchi (Pteromalidae), 1955

Baur, Hannes, 2001, The Hymenoptera (Chalcidoidea, Ichneumonoidea, Platygastroidea) described by Vittorio Delucchi: an annotated catalogue, Journal of Natural History 35 (1), pp. 55-125 : 104

Skeloceras cerebrosum Delucchi (Pteromalidae)

Skeloceras cerebrosum Delucchi, 1955a: 21 , 24. Holotype m, Germany (NMW [examined]).

Material. HOLOTYPE m (cr, left pedicel with ¯agellum, right ¯agellum beyond ®rst segment, and left fore leg beyond trochanter lacking, body glued with original micro-pin to card rectangle) labelled`p. 232. o. Or. Ex. m.; [empty label]; Collect. G. Mayr; Lamp. sulcatulus FoÈrster , Type; [cp, yellow]; SKELOCERAS cerebrosum n. V. Delucchi det.; TYPE [red]’.

Remarks. Delucchi described the female and stated`Type deÂpose au MuseÂum d’Histoire Naturelle de Vienne.’ but did not specify the number of specimens he had. Holotype subsequently remounted from micro-pin by me. It is a specimen from the FoÈrster collection. One male (dp) in the NMW provided only with Delucchi’s identi®cation label is not considered as part of the type series, since the male was not described.

Delucchi (1955a: 21) separated cerebrosum from Lamprotatus truncatus (Fonscolombe) [sub Skeloceras mirabile Delucchi ] by diOEerences in the sculpture of the propodeum. Examination of 25 females and 16 males from Northern and Central Europe, Croatia, France, and Italy ( BMNH, MG, MHNG, MZL, NMBE, NMW, VD, ZB) showed that this character is quite variable. The sculpture consists of some oblique striae which sometimes may indicate an irregular median carina or a costula, though the latter is never as distinct as e.g. in L. novickyi (Delucchi) . With regard to this variation cerebrosum certainly lies within the range of variation of truncatus .

Status. Junior synonym of Lamprotatus (Skeloceras) truncatus (Fonscolombe) syn. n.