446 



vertex very narrow and centrally emarginate, \vith the ocelli 

 approximate ; face transverse and nitidulous, strongly and evenly 

 punctate, with the epistoma a little elevated ; clypeus subconvex, 

 apically margined, and broadly rounded, laterally foveate; mandibles 

 stout and apically equidentate, basally punctate and broader than 

 the cheeks. Antenna? stout and filiform, with the basal flagellar 

 joints not discrete. Thorax dull, evenly and distinctly punctate, 

 with no notauli ; metanotum not 

 elongate, with no basal area?, but 

 with the apices of the costulae and 

 sides of the excavate and trans- 

 aciculate petiokr area somewhat 

 strong; spiracles linear. Scutcllum 

 nitidulous and sparsely though dis- 

 tinctly punctate, convex and laterally 

 striate. Abdomen strongly com- 

 pressed throughout and obsoletely 

 punctate ; basal segment linear to 

 a little beyond its centre, and thence 

 abruptly and exactly fusiform to apex ; 

 second a little longer than the faintly 

 trans-impressed third ; anus of d 

 abruptly truncate, with the valvulae 

 not exserted, of $ strongly obtuse, 

 with the terebra shorter than the 

 basal segment. Leys of normal 



length ; hind tibiae with strong and elongate discal spines through- 

 out ; claws closely pectinate. Wings hyaline, with the nervures and 

 narrow stigma black ; radial cell narrow and hardly angled above 

 the minute areolet, which is oblique and occupies hardly the 

 lower external third of the submarginal nervure ; basal nervure 

 not quite continuous ; lower wing with the basal abscissa of the 

 radius as long as the second recurrent; nervellus straight and 

 simple. 



Length 8-10 millim. 



SIKKJM, iv. 91 and iv.-vi. 00 (Col. Bingliani). 

 Type in the British Museum. 



This is a bright flavous species with the mandibular apices, 

 interocellar space contiguous with occiput below, flagellum, three 

 mesonotal vittae (the external ones confluent at the scutellar fovea), 

 two basal metanotal spots, variable small meso- and sometimes 

 meta-pleural marks, discal and lateral and ventral apices of 

 abdominal segments, and the hind legs with coxaland trochanteral 

 spots, base and apex of tibiae, external lines on femora and most 

 of their tarsi, black. 



I have seen three specimens, representing both sexes, of this 

 species. 



Fig. 128. 



_Ya >i t It oca mjxtptrx or ten ta //.*, 

 Mori. 



