Mesoleptus stygius Walker, 1874

Shimizu, So & Broad, Gavin R., 2020, Photographic catalogue of the oldest primary types of Japanese Ichneumonoidea (Hymenoptera), those described by Frederick Smith and Francis Walker in 1874, Journal of Natural History 54 (17), pp. 1115-1198 : 1185

Mesoleptus stygius Walker, 1874

( Figure 45 )

Taxonomic history. Morley (1913b) transferred this species to Perilissus Förster, 1855 and Townes et al. (1965) then treated Mesoleptus stygius as a subspecies of P. rufoniger ( Gravenhorst, 1820) . Finally, Aubert (2000) synonymised it under P. rufoniger .

Current taxonomy. Junior synonym of Perilissus rufoniger ( Gravenhorst, 1820) ( Ichneumonidae : Ctenopelmatinae : Perilissini ).

Type number. Type 3b.1106. Specimen # NHMUK010881031

Type status. Holotype.

Sex. Male.

Type locality. Japan.

Label data. First label, ‘Type’ (round label, with red margin; printed); second label, ‘B.M. TYPE /HYM./3.b.1106’ (square label; first and second lines printed and third line handwriting); third label, ‘ Japan./Coll.F. Walker./ 1913–71.’ (square label; printed); fourth label, ‘262’ (square label; handwriting); fifth label, ‘ Mesoleptus /stygius’ (square label; handwriting); sixth label, ‘ Perilissus sp./Morley det.’ (square label; first line handwriting and second line printed).

Condition. Rather good; apical few flagellomeres of right antenna lost; left hind wing glued to card.

Figures

Figure 45. Holotype male of Mesoleptus stygius Walker, 1874 (= Perilissus rufoniger (Gravenhorst, 1820)): (a) labels (b) lateral habitus (c) head, frontal view (d) head, dorsal view (e) head, lateral view (f) mesosoma, lateral view (g) mesoscutum and scutellum, dorsal view (h) propodeum, dorsolateral view (i) metasoma, dorsal view.