DESCRIPTION OF SPECIES OF HYMENOPTERA. 1007 



widely depressed ; the apex of the depression has an oblique slope ; the 

 segments are fringed with white pubescence, which is interrupted in the 

 middle on the basal segments. The basal ventral segment is broadly, some- 

 what triangularly, raised in the middle ; the middle segments are thickly 

 covered with white pubescence. 



DlPLOPTERA. 



Odynerus deesanus, sp. nov. 



Pale yellow with the following black markings : a broad mark covering the 

 ocelli, broadly rounded behind and with 2 short curved lines on the inner side 

 of the hinder ocelli running obliquely beyond the apical, the mark continue^ 

 laterally as a broad line to each antenna, a mark in centre of occiput obliquely 

 narrowed in the middle behind, a short oblique line behind the top of the 

 eyes, a narrow line round the base and sides of the mesonotum, the line 

 dilated on the base, a broad line, about 4 times longer than wide, narrowed 

 at the apex, nearer the base than the apex, a curved broad line on the 

 sides, triangularly dilated at the base, extending to the scutellum where 

 it unites with a transverse apical line, which is narrowed at the sides, dilated in 

 the centre, a line, roundly narrowed, at the base of scutellum, a line of equal 

 width at the base of post-scutellum, 2 large oblique oval marks on the top of 

 basal slope of 1st abdominal segment, narrowed on the inner side, a broad line 

 on the base of the 2nd, broadly, roundly dilated laterally and with a longer 

 narrower line issuing from the centre, and small obscure spots in the centre of 

 the other segments, as well as a transverse line at the base of the 3rd ventral. 

 Antennal scape yellow, with a black line above, the flagellum rufous. Four 

 hinder femora and tibiae broadly lined with black above. Wings clear hyaline 

 the nervures and stigma black. $ 



Total length 12 mm. 



Habitat. — Deesa (May). 



Closely punctured, the abdomen distinctly, but less strongly than the 

 thorax ; on basal half of the centre of the 2nd ventral segment is a distinct, 

 clearly defined furrow of equal width. Clypeus clearly wider than long, not 

 quite so strongly or so closely punctured as the vertex ; the apex broad, trans- 

 verse. Base of thorax not quite transverse. Apex of post-scutellum broadly 

 narrowed. Sides of metanotum broadly rounded, the centre not much 

 c epressed, transversely striated. First abdominal segment cup-shaped, short, 

 clearly shorter than it is wide at the apex ; the 2nd is longer than wide, its 

 apex slightly, narrowly depressed. 



Odynerus xanthus, sp. nov. 



Yellow, an irregular mark, wider than long, covering the ocelli, the sides 

 behind projecting, the centre with a a- shaped mark between the ocelli, a 

 narrow curved line on the top of the occiput, a triangular mark on the base of 

 mesonotum, an irregular transverse one on the sides, before the tegulse, its 

 inside wider than the outer, a line at the base of scutellum, dilated laterally, 

 the base of 1st abdominal segment narrowly, a mark, rounded and dilated at 



