Sussaba pulchella ( Holmgren 1858, Bassus

Klopfstein, Seraina, 2014, Revision of the Western Palaearctic Diplazontinae (Hymenoptera, Ichneumonidae), Zootaxa 3801 (1), pp. 1-143 : 91-92

Sussaba pulchella ( Holmgren 1858, Bassus )

Bassus elongatus Provancher 1874

Bassus monticola Vollenhoven 1880

Promethus laticarpus Thomson 1890

Otoblastus erodens Davis 1897

Promethes unicinctus Ashmead 1902

Promethes albicoxis Ashmead 1906 (nomen nudum)

Promethes ruthei Roman 1931

Diagnosis. Fore wing length 3.7–4.5 mm. Antenna in females with 20–22 flagellomeres, with ventral area of median to apical flagellomeres with conspicuous areas bearing a short velvety pile and lacking multiporous plate sensilla; in males with 21–24 flagellomeres, with two-coloured tyloids on flagellomeres 5/6 to 10/11. Face mainly smooth and shining, impunctate, with some irregular sculpture centrally and along inner orbits. Mesoscutum with central area coriaceous, weakly punctate. Mesopleuron entirely smooth and shining, impunctate, at most with some irregular sculpture on lower half. Hind coxa with outer hind surface mostly smooth and shining, without any sculpture apart from around seta roots. Propodeum with a full set of carinae enclosing basal, lateral and petiolar areas, the areas with rugose sculpture. Metasoma evenly tapered towards apex, tergite 1 1.3–1.6 times longer than wide in female, 1.4–1.8 times in males.

Colouration of females. Antenna dark brown, sometimes paler below. Head and mesosoma black, face often with a yellow central face patch, clypeus black, yellow on mouthparts, hind corner of pronotum, tegula, subtegular ridge, usually at least small shoulder mark, upper mesepimeron; scutellum black. Legs orange, coxae black, fore coxa with a yellow apex, trochanters all marked with black; femora orange, marked with black below; hind tibia and tarsus orange to brown. Metasoma variously marked with orange, usually at least on hind margin of tergite 2 and entire tergite 3; this colouration can be darkened, especially in high altitude or northern specimens.

Colouration of males. As in females but with yellow ventrally on scape and pedicel, usually entire antenna ventrally, entire face, and epicnemium. Fore and mid coxae only black at extreme base, hind coxa with a yellow apex. Metasoma sometimes as in females but usually with third tergite black centrally with two yellow spots on anterolateral corners and orange hind margin and tergites 4 and 5 similarly coloured or black.

Material examined. Lectotype of Bassus pulchella Holmgren : Sweden, Lapland, leg. Boheman. 1♀, at NRM . Lectotype and paralectotype of Promethus laticarpus Thomson : Sweden, Skåne, Lund. 1♂, 1♀, at ZIL.

Bulgaria (1), Finland (5), France (1), Germany (1), Hungary (1), Iceland (1), Norway (2), Russia (1), Sweden (>200), Switzerland (>200), United Kingdom (>100).

Distribution. Holarctic and Oriental.

Figures. Metasoma ♀ ( Fig. 23 D), habitus ( Fig. 34 B), male terminal sclerites ( Fig. 38 B).

Figures

FIGURE 23. Metasoma of Sussaba species viewed from above. A. Sussaba erigator. B. Sussaba roberti. C. Sussaba dorsalis. D. Sussaba pulchella. Scale bars represent 500 µm.

FIGURE 34. Habitus of Diplazontinae species. A. Sussaba montana. B. Sussaba pulchella. C. Sussaba roberti sp. nov. D. Syrphoctonus desvignesii. E. Syrphoctonus fissorius. F. Syrphoctonus tarsatorius.

FIGURE 38. Ninth sternite and ninth and tenth tergites of male Diplazontinae species. A. Sussaba erigator. B. Sussaba pulchella. C. Sussaba roberti. D. Syrphophilus asperatus. E. Tymmophorus erythrozonus. F. Tymmophorus obscuripes. G. Woldstedtius bauri. H. Woldstedtius citropectoralis. I. Woldstedtius holarcticus. J. Xestopelta gracillima.