of Fossorial Hymenoptera. 445 



markings ; abdomen red. The head and thorax covered with 

 short cinereous pile ; the scape of the antennae yellow in front, 

 and covered with cinereous pile ; the flagellum fulvous beneath 

 and fuscous above. Thorax : the tegulas and posterior margin 

 of the prothorax broadly yellow ; wings hyaline, and with a 

 dark fuscous cloud beyond the third submarginal cell, the 

 nervures dark fuscous ; the posterior tibia3, their apical cal- 

 caria and their tarsi, as well as the intermediate pair and the 

 spurs of the tibias, pale yellowish white ; the tips of the tarsal 

 joints and of the posterior tibiffi black, as are also their spines. 

 Abdomen ferruginous, with cinereous bands at the base of the 

 segments. 

 Ilab. Para. 



Pompilus conterminus. 



Female. Length of lines. Black, with a broad yellow fascia 

 on the abdomen, and hyaline wings. Head : a narrow line 

 behind the eyes and a broader one at their inner orbits yellowish 

 white ; the clypeus. covered with silvery pile. The thorax, 

 cox?e, and femora, as well as the base of the abdomen, with a 

 coating of silvery pile ; the posterior margin of the prothorax, 

 which is arcuate, with a narrow yellow fascia ; wings hyaline, 

 their nervures fuscous, and the anterior pair with a fuscous 

 cloud beyond the third submarginal cell, covering the apex of 

 the wing ; the intermediate femora at their apex, and the 

 posterior pair as well as the tibia3, ferruginous. Abdomen : 

 the basal segment covered with silvery pile ; a broad yellow 

 fascia at the base of the third segment, slightly narrowed in 

 the middle. 



Hob. Para. 



Genus Agenia, Schiodte. 

 Agenia agitata. 



Female. Length 3-4 lines. Black ; wings hyaline, with 

 a fuscous macula ; the abdomen petiolated. Covered with 

 a thin slate-coloured sericeous pile ; on the face, coxa3, and 

 posterior portion of the metathorax it is silvery. The man- 

 dibles ferruginous at their apex ; in small examples the 

 apical margin of the clypeus is testaceous ; the antennae fulvous 

 beneath, brightest in small examples. Thorax : the posterior 

 margin of the prothorax arcuate ; wings clear hyaline, with a 

 fuscous cloud occupying the second submarginal cell, and 

 usually extending more or less into the third discoidal cell ; 

 the third submarginal cell twice as long as the second and 

 slightly restricted towards the marginal one ; the anterior 

 tibiae and tarsi, and all the calcaria that arm the apex of the 



