MACKOGASTEK. 



Tahle of Species. 



1 (6) Central luesonotal lobe higher than 



the lateral ; metauotum more or less 

 transversely strigose or reticulate. 



2 (5) Body black. 



3 (4) Legs nearly entirely black ; antennte 



not white-banded iiicjricans, Cam., p. '27. 



4 (3) Legs mainW pale ; antennte white- 



banded varipes, Cam., p. 28. 



5 (2) Abdomen and anterior legs red, hind 



legs black ferriKjineus, Cam., p. 29. 



6 (1) Central mesonotal lobe not higher than 



the lateral ; metanotum not reticu- 

 late or transversely strigose htteus, Cam., p. 30. 



1. Macrogaster nigricans, Cam. 



Macrogastev iiiyricans, Cameron,* Manch. Mem. 1899, p. 194 (5). 



5 . Head black, with the facial orbits broadly, and the frontal 

 narrowly, testaceous-flavous ; face strongly punctate, becoming 

 irregularly reticulate ; epistoma prominent and in S carinafe 



above ; clypeus iui punctate, 

 with the sides straight and 

 oblique : mandibles w ith elon- 

 gate white pilosit}-, their basal 

 half deeply punctate and centre 

 bicarinate ; palpi infuscate. 

 Antenna' shortly pubescent 

 throughout. Thora.v immacu- 

 late ; mesouotum strongly and 

 deeply punctate, its apex trans- 

 verse, with the central lobe 

 distinctly elevated ; metanotum 

 apically deplanate, transversely 

 striolate, laterally at the base 

 and before the spiracles irregu- 

 larly reticulate, with a small, 

 transverse and apically emar- 

 ginate basal area ; pro- and 

 meso-pleurse punctate-strigose, 

 with the latter centrally gla- 

 brous and plumbeous ; metapleura? reticulate and white-pilose. 

 Scutellum nitidulous and apically plumbeous, with large and 

 sparse punctures ; basal fovea large, deeply im]nessed and 

 as broad as the scutellum, transverselv tricarinate with the 



Fig. 4. — Macrogaster nigricans. Cam. 



* An asterisk against the name of a species in the synonymy indicates tliat 

 a type or cotype has been examined by the author. 



