168 HYMENOPTEKA. 



not very convex, the apex almost transverse. Head narrow, closely punctured, the face 

 with a close white pubescence, the other part with the pubescence shorter and sparser ; 

 occiput transverse, rounded at the sides. Prothorax not quite so long as the head, the 

 sides rounded, almost transverse behind. Median segment a little shorter than the 

 mesothorax, having a gradual rounded slope ; the oblique furrow in the mesopleurse 

 distinct, narrow. The pro- and mesothorax are finely and very closely punctured ; the 

 median segment is granular, covered with a white pubescence, and has two rounded 

 spots of pubescence at the apex. Antennae rather long, filiform, pruinose. Abdomen 

 shining, petiolate, pruinose towards the apex ; the pygidium finely punctured, and 

 bearing on the apical three-fourths a dull fulvous depressed pile. The fore wings 

 have a narrow fascia along the basal nervure ; the apex is clouded from the base of 

 the radial cellule ; the second cubital cellule at the top is nearly one-fourth longer 

 than the third, at the bottom it is shorter ; the first transverse cubital nervure is 

 elbowed, the second straight and oblique, the third curved ; the radial cellule in the 

 middle is as wide as the length of the second cubital cellule at the top. Legs elongate, 

 pruinose, the femora with a bluish tinge; the long spur of the hinder tibiae reaches 

 the middle of the metatarsus. 



19. Pseudagenia levipes. 



Pompilus levipes, Cresson, Proc. Bost. Soc. Nat. Hist. xii. p. 374 \ 

 Hob. Mexico, Orizaba (Sumichrast 1 ). 



-J 20. Pseudagenia perdita. (Tab. X. fig. 16, wing.) 



Nigra, longe pilosa ; alis fuscis. $ . 

 Long. 9 millim. 



Hob. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith). 



Eyes distinctly converging beneath. Ocelli in a triangle, the hinder ones separated 

 from each other by half the distance they are from the eyes. Clypeus convex, 

 depressed at the base, broadly rounded at the apex. Occiput transverse. Head stout, 

 broad, finely punctured, not much developed behind the eyes. Antennae moderately 

 stout, obscurely pruinose. The cheeks and clypeus densely, the rest of the head more 

 sparsely, covered with a silvery pubescence and with long blackish hair. Thorax 

 alutaceous; the median segment granular, furrowed down the middle. Prothorax 

 short, roundly narrowed towards the head ; median segment gradually rounded at the 

 apex; mesopleural furrow distinct. The thorax is covered with long pale fulvous 

 hair, which is especially long on the sternum. Abdomen shorter than the thorax, 

 shining, subpetiolate, pruinose, the apical segments bearing long fuscous hair; the 

 pygidium shining, impunctate, without pubescence. Wings : radial cellule wide, 

 angled where the nervures are received; the second cubital cellule at the top and 



