166 HYMENOPTEKA. 



segments bearing long black hairs; pygidium broad, shining, without pubescence. 

 Wings : the first cloud is at the basal nervure, the second is twice the width of the 

 first, commences a little behind it, and ends a little before the apex of the radial 

 cellule ; the second cubital cellule is subquadrate, at the top about one-fourth longer 

 than the third at the top, at the bottom not so much longer; the first transverse 

 cubital nervure is straight, the second curved ; the third cubital cellule is not half so 

 long at the top as at the bottom ; the second cubital cellule receives the recurrent 

 nervure a little beyond the middle, the cubital nervure being angled where it joins it; 

 the second recurrent nervure is broadly curved. The legs are short and stout ; the 

 coxae, tibiae, and tarsi are densely fulvous-pubescent ; the femora are sparsely haired ; 

 the long spur of the hinder tibiae does not reach the middle of the metatarsus. 



P. nubifer, Cress., agrees closely with this species in coloration ; but it has the head 

 and thorax clothed with golden pile, the sides of the pronotum rufous, and the edge of 

 the clypeus truncated. 



13. Pseudagenia championi. (Tab. x. fig. 12, $ .) 



Nigra, capite thoraceque dense aureo-pilosis, abdomine pedibusque fere caeruleis ; alis flavo-hyalinis, f usco- 



bifasciatis. $ . 

 Long. 12 millim. 



Sab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion). 



Black, the head and thorax with a bluish tinge ; the head above hidden by golden 

 pubescence ; the pro- and mesonotum with golden, the pleurae and the apex of the 

 median segment with silvery, pubescence ; the abdomen from the second segment 

 thickly pruinose. Face and clypeus finely punctured ; eyes slightly converging 

 beneath ; ocelli small, forming a triangle, the hinder ones separated from the eyes 

 by a slightly greater distance than they are from each other ; clypeus broadly rounded 

 at the apex ; occiput transverse behind, the sides rounded ; the mandibles bearing a 

 few long white hairs. Pronotum arcuate, forming a neck at the base. The scutellum 

 broad, hardly narrowed behind. Median segment with a gradual rounded slope, 

 granular. Abdomen petiolated ; the pygidium granular, densely covered with silvery 

 pubescence and with long silvery hair, at the apex with golden-fulvous hairs. Wings : 

 radial cellule lanceolate ; the second cubital cellule at the top four times longer, at the 

 bottom shorter, than the third; the third cellule at the top much narrowed, about 

 half the length of the space bounded by the second recurrent and the second transverse 

 cubital nervures ; the first transverse cubital nervure elbowed ; the first recurrent nervure 

 received before, the second in front of, the middle. Legs long, slender, covered with 

 a silvery pubescence, which is especially thick on the coxae ; the tibiae and tarsi with a 

 few short spines ; the long spur of the hind tibiae does not reach the middle of the 

 metatarsus; the femora have a bluish tinge. The small first band on the wings 



