A photographic catalog of Ceraphronoidea types at the Muséum national d’Histoire naturelle, Paris (MNHN), with comments on unpublished notes from Paul Dessart Author Trietsch, Carolyn Author Mikó, István Author Deans, Andrew R. text European Journal of Taxonomy 2019 2019-02-28 502 1 60 journal article 28498 10.5852/ejt.2019.502 0ff4f2ea-dc22-4d23-aa8d-12be8542e9aa 2581898 90DC9D26-DAF0-4C88-9800-4FB10B7CBE9F Dendrocerus omostenus Dessart, 1979 Fig. 23 Dendrocerus omostenus Dessart, 1979b : 34 , ♀ . MNHN. Dendrocerus omostenus – Fergusson 1980 : 301 . Possibly a species of Conostigmus . Material examined Holotype ALGERIA • ♀ ; “« Oran , 7-4-1958 / J. Bar- bier», «1069», «Prép. mictoscopiques N° 7707 /081»” ( Dessart 1979b: 38 ); MNHN EY25348 , EY22455 , EY22456 . Distribution Palearctic. Fig. 23. Dendrocerus omostenus Dessart, 1979 , holotype, ♀. A . Dorsal habitus (MNHN EY25348). B . Lateral habitus. C . Right antenna (MNHN EY22455). Comments Dessart (1979b) described this species from a single female specimen. In his publication, he explains that he placed the species in the genus Dendrocerus mainly because of the ocellar triangle, which is an isosceles triangle and has a broad base in this species, whereas in species of Conostigmus the ocellar triangle is more equilateral. He notes that the species also lacks a sternaulus, which is sometimes present in Conostigmus but always absent in Dendrocerus . However, he does admit that the species bears similarities to the genus Conostigmus , notably in the scape, the presence of the supraclypeal depression, and the slim appearance of the noutalices and the mesosoma ( Dessart 1979b ). The single female specimen is card mounted (MNHN EY25348), with two slide preparations (prép. no. 7707/081) of the right antenna (MNHN EY22455) and the right fore and hind wings (MNHN EY22456).