Dinarmus bifoveolatus Delucchi (Pteromalidae), 1956

Baur, Hannes, 2001, The Hymenoptera (Chalcidoidea, Ichneumonoidea, Platygastroidea) described by Vittorio Delucchi: an annotated catalogue, Journal of Natural History 35 (1), pp. 55-125 : 73

Dinarmus bifoveolatus Delucchi (Pteromalidae)

Dinarmus bifoveolatus Delucchi, 1956a: 243 , 246. Holotype, l France: Seine-et-Marne , Chartrettes (MNHN [examined]).

Material. HOLOTYPE l(mp, left clava lacking) labelled`Chartrettes, S.-M. 10.8.47; TYPE [red]; DINARMUS bifoveolatus n. V. Delucchi det.; ’l.

Remarks. Rasplus (1989: 143) who had no access to the holotype suggested that bifoveolatus may be an aberrant specimen of Dinarmus acutus Thomson. Re-examination of the holotype con®rms the proposed synonymy. The latter does in fact only diOEer from specimens of acutus by the pits on each lateral lobe of the mesoscutum as described by Delucchi. Though the pits are symmetrically placed they represent a deformation probably caused during ontogeny. In addition, some irregular impressions are situated between the notauli. I have observed a similar phenomenon in some specimens of Pteromalus puparum (Linnaeus) (MHNG) where the degree of development of the pits sometimes varied from one side to the other and between specimens.

Status. Junior synonym of Dinarmus acutus Thomson ( Rasplus, 1989: 141) .