4/2 Mr. Cameron on 



shorter than the head, the sides rounded. Head and thorax 

 alutaceous, pruinose. Petiole without a neck, gradually 

 enlarged towards the apex. Antennae elongate, moderately- 

 stout. The radial cellule moderately wide, the apex sharply 

 lanceolate ; the first cubital cellule hardly twice longer than 

 the second, the first transverse cubital nervure broadly 

 curved, the second straight ; the third elbowed sharply at 

 the middle; the top of the cellule being thus much narrowed ; 

 the first recurrent nervure is received in the apical third ; 

 the second almost in the middle of the cellule. Legs 

 elongate, pruinose, the tibial spines few ; the long spur of 

 the hind tibia3 reaches to the middle of the metatarsus. 

 Claws with a short stout sub-basal tooth. 

 Length 7-8 mm. 



POMPILUS ZEUS, sp. nov. (PL III. f 2l). 



Black ; the basal three abdominal segments, the hind 

 femora and tibiae, the middle femora, except at the base,, 

 red ; the spines glistening white, wings fusco-hyaline, with 

 fuscous nervures, tegulse yellowish. Head a little wider 

 than the thorax ; eyes very slightly arcuate above, con- 

 verging beneath ; ocelli separated from each other by a 

 distinctly greater distance than they are from the eyes. 

 Clypeus gaping, the sides rounded, the apex almost trans- 

 verse. Antennae stout, brownish beneath, the third and 

 fourth joints subequal. Prothorax scarcely so long as the 

 head, the sides straight to the base, behind almost trans- 

 verse. Median segment somewhat longer than the pro- 

 thorax ; the base with a very gradual slope, the apex much 

 more abrupt ; the surface hid by a short close white 

 pubescence. Abdomen longer than the head and thorax 

 united, subsessile ; the apical segment impunctate. Legs 

 densely covered with a silvery pile ; moderate, the tibiae 

 and tarsi sparsely spined. The long spur of the hind 



