Baissobius minutus Olmi, Rasnitsyn & Guglielmino

Olmi, Massimo, Rasnitsyn, Alexander P. & Guglielmino, Adalgisa, 2010, Revision of rock fossils of Dryinidae and Embolemidae (Hymenoptera: Chrysidoidea), Zootaxa 2499, pp. 21-38 : 23

publication ID	https://doi.org/10.5281/zenodo.293341
DOI	https://doi.org/10.5281/zenodo.6199427
persistent identifier	https://treatment.plazi.org/id/03F087B2-FF89-FF8F-FF72-7F4F57E5F8A1
treatment provided by	Plazi
scientific name	Baissobius minutus Olmi, Rasnitsyn & Guglielmino
status	sp. nov.

Treatment

Baissobius minutus Olmi, Rasnitsyn & Guglielmino , n. sp.

Material examined: male holotype, PIN no. 4210/1203 from Central Siberia, West Transbaikalia, left bank of Vitim River, 3 km downstream from the former lodge Baissa, marls of Zaza formation, earlier Early Cretaceous (Neocomian stage) (130–140 mybp).

FEMALE: unknown.

MALE ( Fig. 2 View FIGURE 2 ): fully winged; length 1.7 mm. Antennae and head missing. Pronotum not distinctly visible. Notauli present, not distinctly visible, apparently incomplete. Forewing with 3 basal cells completely enclosed by pigmented veins; 1DC and 1 SDC cells not enclosed by pigmented veins. Length/breadth ratio of pterostigma: 24:12 (2.0). Ratios between body regions: scutum (14): scutellum (8): metanotum (2): propodeum (18): gaster (57): forewing (70). Legs almost completely invisible (only a hind leg is partly visible). Maxillary palpi and tibial spurs not visible.

Remarks: because of the characters of the forewing, Baissobius minutus n. sp. is similar to B. carolianus Rasnitsyn, 1996 . However, the pterostigma has a different shape and the 2r-rs vein is shorter. Unluckily, the antennae of B. minutus are missing, so that it is impossible to compare them with the very characteristic antenna of B. carolianus .