HYMENOPTERA. 147 



139. POMPILUS PEDESTRIS. B.M. 



Female. Length 7 lines. Black : the head covered with cine- 

 reous pile, that on the face and clypeus very dense and silvery- 

 white. Thorax thinly covered with cinereous pile ; the anterior 

 and posterior margins of the prothorax have bands of dense cine- 

 reous pile ; that on the metathorax, sides of the thorax, and on 

 the coxae is very dense and silvery ; the metathorax truncate 

 posteriorly, the lateral angles slightly produced, forming obtuse 

 tubercles ; the wings fusco-hyaline, their apical margins having 

 a darker fuscous cloud, the third submarginal cell subtriangular ; 

 the legs covered with scattered long sharp spines ; the posterior 

 tibiae and femora ferruginous, the latter black at their base. 

 Abdomen : the base, of all the segments, has a broad cinereous 

 band. 



Hab. Sumatra. 



140. POMPILUS PERPLEXUS. B.M. 



Female. Length 6 lines. Black : the head and thorax 

 opake ; the posterior margin of the prothorax angulated, the 

 metathorax smooth and impunctate ; the wings deep fuscous, 

 with a violet iridescence ; the second and third submarginal cells 

 of about equal length, the former receiving the first recurrent 

 nervure near its apex ; the legs sparingly spinose. Abdomen 

 smooth and shining, and having an obscure chalybeous tinge. 



Hab. Sumatra. 



141. POMPILUS C^ERULEUS. B.M. 



Female. Length 5-7 lines. Bright shining blue : the an- 

 tennae, mandibles and palpi black ; the face covered with fine 

 silvery pile, the head having a thin scattered hoary pubescence; 

 the thorax has a similar pubescence to that on the head ; the 

 pro- and meso-thorax finely rugose, the metathorax coarsely so, 

 and having a central deeply impressed line, extending from the 

 base to the apex ; wings subhyaline, the nervures black ; a fus- 

 cous cloud traversing the externo-medial nervure, a faint cloud 

 also occupies the second submarginal cell ; legs obscurely blue, 

 without spines, the posterior femora bright red. Abdomen sub- 

 petiolate, smooth and shining. 



Hab. Northern India ; Sumatra. 



This species resembles P. blandus, Guerin, but differs in the 

 sculpture of the thorax, colour of the legs, and also materially 

 in size. 



H2 



