1897.] NATURAL SCIENCES OF PHILADELPHIA. 273 



Salius (Priocnemis) fuscomarginatus n. sp. 



9- — Black; abdomen steel-blue; antennas from base of sixth 

 joint to base of ninth, orange-yellow; clypeus somewhat hexagonal, 

 fore margin distinctly incurved ; eyes converging above, not reach- 

 ing base of mandibles, separated at top by a distance about equal to 

 length of first joint of flagellum ; antennas longer than in auratus 

 fully as long as head, thorax and first abdominal segment ; space be- 

 tween hind ocelli equal to more than half that between them and 

 eyes; pronotum angulate behind; middle segment with a broad, 

 shallow furrow down middle, with coarse transverse striae, becoming 

 obsolete basally ; legs tolerably spinose, hind tibia? hardly serrated, 

 their longer spur hardly equal to one-third the length of first hind 

 tarsal joint ; abdomen subpetiolate, the apical segment punctured 

 and clothed with brownish hairs ; wings bright yellow, apical mar- 

 gin of anteriors narrowly fuscous ; second submarginal cell rhom- 

 boidal, not much more than one-third as large as the third, the latter 

 narrowed about one-third above and receives the recurrent vein in 

 the middle. Length 18 mm. 



$ . — Colored like 9 , but abdomen black, and the entire insect 

 has pale sericeous pile ; clypeus more quadrate, its fore margin much 

 broader and the emargination triangular ; striation of middle segment 

 more irregular and not so strong ; longer spur of hind tibia? equal to 

 more than one-third of the length of first hind tarsal joint; third 

 submarginal cell shorter than in the 9 . receiving the recurrent vein 

 before middle. Length 15 mm. 



Two specimens ( 9 $ ). Chapada (December) ; Santarem (Feb- 

 ruary). 



Salius (Priocnemis) convergens n. sp. 



9 . — Black somewhat velutinous with brownish pile ; dorsulum 

 and scutellum with golden-brown pile ; flagellum beneath from 

 second joint, five last joints entirely, inner orbits obscurely, yellow- 

 testaceous ; apical margins of abdominal segments testaceous; clypeus 

 transverse, its fore margin broadly subtruncate; eyes almost reach- 

 ing base of mandibles, strongly converging above, separated at top 

 by a distance about equal to length of scape ; ocelli large, space be- 

 tween hind pair fully twice as great as that between them and eyes; 

 first joint of flagellum more than one-third longer than second; 

 pronotum angulate behind, antero-laterally not swollen, but evenly 

 convex ; middle segment rounded, parted by a feeble longitudinal 

 furrow, and with a few transverse striae at extreme apex ; legs 



