190 BTMENOPTERA. 



pale testaceous at the base ; the tibiae with a few long spines ; the long spur of the 

 hind tibiae reaches nearly to the middle of the metatarsus. The fore wings with only 

 two cubital cellules ; the second cubital cellule receiving both the recurrent nervures, 

 the first at a slightly greater distance from the base than the second is from the apex. 

 The wings are short. 



^ 16. Pompilus (Aporus) decorus. 



Long. 12 millira. 



Hob. Mexico, Xucumanatlan in Guerrero 7000 feet (E. E. Smith). 



Dark blue, pruinose. Head shagreened, above bearing long black hairs, the cheeks 

 and clypeus with a silvery pubescence, transverse behind ; eyes converging at the top ; 

 the hinder ocelli separated from each other by a greater distance than they are from 

 the eyes ; clypeus transverse at the apex ; there is an indistinct furrow on the front. 

 Thorax alutaceous, velvety ; the prothorax broader than long, behind arcuate, and 

 bearing some longish black hairs. Scutellum becoming gradually narrowed to the 

 apex. The median segment with a gradually rounded slope to the apex, distinctly 

 furrowed down the centre. Abdomen subsessile, a little longer than the head and 

 thorax united ; the pygidium and ventral surface with some long black hairs. Tibial 

 spines long, pale ; the long spur of the hind tibiae reaches to the middle of the meta- 

 tarsus. Wings dark fuscous, with lighter shades ; the second cubital cellule large, the 

 first recurrent nervure received near the basal third, the second beyond the apical 

 fourth ; both the transverse cubital nervures are curved, thus narrowing the second 

 cubital cellule at the top ; the basal nervure is interstitial ; the anal nervure in hind 

 wings is received beyond the cubital. 



J 17. Pompilus monticola. 



Long. 7 millim. S ■ 



Eab. Mexico, Xucumanatlan in Guerrero 7000 feet (E. E. Smith). 



Black, pruinose, with bluish tinges. Head covered thickly with long pale fuscous 

 hairs; antennas short, thick, inserted free from the top of the clypeus, the third joint, 

 if anything, shorter than the fourth ; eyes distinctly converging beneath ; the hinder 

 ocelli separated from the eyes by about the same distance they are from each other ; 

 apex of the clypeus transverse. Prothorax shorter than the head, narrowed towards the 

 base, the apex rounded. Median segment gradually rounded towards the apex, the 

 extreme apex in the middle faintly hollowed. The entire thorax densely covered with 

 longish silvery hair. Abdomen shorter than the thorax, closely covered with a silvery 

 pile, sessile, compressed. Legs moderately long and stout, covered with a silvery pile ; 

 the base of the fore tarsus curved ; the tibiae almost without spines ; the long spur of 



