272 PROCEEDINGS OF THE ACADEMY OF [1897. 



middle segment rounded, convex, covered with cinereous pile,scarcely 

 impressed ; legs not strongly spinose, the serration of hind tibiae not 

 strongly marked, their longer spur equal to not more than one-quar- 

 ter of the length of first hind tarsal joint ; apical margin of abdom- 

 inal segment narrowly testaceous, the apical ventral segments with 

 short, stiff yellowish hairs ; wings pale yellow, paler apically, tips 

 and a spot in third discoidal cell, light fuscous, second submarginal 

 receiving the first recurrent near apex, rhomboidal, third submar- 

 ginal three or four times larger than the second, receiving the recur- 

 rent vein before the middle. Length 16-17 mm. 

 Santarem. Two specimens. 



Salius (Priocnemis) auratus n. sp. 



9 • — Black, abdomen slightly bluish, shining ; head and thorax 

 opaque; sides of scutellum, the postscutellum and middle segment 

 covered with golden pile ; face and clypeus and thorax beneath with 

 sparse silvery pile ; antennal joints 6-8, or 9, fulvous ; clypeus large, 

 somewhat hexagonal, strongly punctured anteriorly, fore margin 

 broadly subtruncate or a little incurved ; eyes not reaching base of 

 mandibles, converging somewhat above, separated at the top by a 

 distance about equal to or slightly greater than the combined length 

 of antennal joints 2 and 3 ; space between hind ocelli equal to more 

 than half that between them and eyes ; first joint of flagellum not 

 quite one-third longer than second ; pronotum almost arcuate be- 

 hind, longer than in hexagonus, strongly convex or swollen especially 

 at the sides ; middle segment short, rounded, broadly and shallowly 

 channelled down middle, with strong, transverse stride or folds, which 

 are indistinct or absent at base and apex ; tarsi tolerably spinose, 

 the tibiae poorly so, hind tibiae indistinctly serrated, longer spur of 

 hind tibiae equal to more than one-third of the length of first hind 

 tarsal joint ; abdomen with last segment with rather dense brown 

 hair, ventral segments more or less clothed with tolerably dense 

 fuscous hair ; fore wings as far as base of second submarginal yellow, 

 then as far as middle of third submarginal fuscous, beyond this 

 whitish with tips fuscous, hind wings yellow with broad fuscous 

 apex, second submarginal oblong, receiving first recurrent vein just 

 beyond middle, third submarginal large, narrowed nearly one-third 

 to marginal, receiving second recurrent vein at about middle. Length 

 15-19 mm. 



Chapada (March). Two specimens. The color of the wings gives 

 the insect a striking appearance. 



