34 Journal New 'S'ork Entomological Society, t^'o'- xxix. 



veins, costa, and distal half of stigma pale, proximal half of stigma fuscous; 

 saw-guides with dorsal and ventral margins slightly convex, strongly converg- 

 ing, pointed. Length, 4 mm. 



Habitat: Ithaca, New York. No. 7-6. 



This species is similar to Jiyalina Nort. from which it can be 

 distinguished by the color of the pronotnm. 



Pontania devincta new species. 



Female. — Body black with the following parts yellowish white : margin of 

 clypeus, labrum, mandibles, mouth-parts, dot on supraclypeal area, pronotum, 

 tegulae, legs except greater part of metacoxae ; clypeus broadly, deeply, roundly 

 emarginate ; median fovea broad, round, shallow: frontal crest narrow, not 

 sharply defined, slightly broken ; ocellar basin indistinct, lateral walls rounded, 

 indefinite ; antennae with third segment longer than fourth, fourth slightly 

 longer than fifth ; head and thorax dull, setaceous ; wings hyaline ; veins, 

 stigma, and costa luteous ; saw-guides with dorsal and ventral margins straight, 

 strongly converging, distal end sharply pointed. Length, 4 mm. 



Male. — Body black with following parts yellowish white : antennae, supra- 

 clypeal area, between antenna, clypeus, labrum, mandibles, mouth-parts, genal 

 orbits, ventral half of frontal orbits, occipital orbits, vertical orbits, collar, 

 tegulae, legs, and venter of abdomen : procidentia broad, rounded, not strongly 

 convex ; other structures as in female. Length, 3.5 mm. 



Habitat: Orono, Maine. Subs. 9, 226. 



This species can be separated from horcalis Marl, by the differ- 

 ence in the frontal crest. 



Pontania derosa new species. 



Female. — Body black with the following parts yellowish white: supra- 

 clypeal area, clypeus, labrum, mandibles, collar, tegulae, and legs except proxi- 

 mal two-thirds of coxae : occipital and vertical orbits narrowly rufous : an- 

 tennae with third, fourth, and fifth segments subequal ; clypeus broadly, rather 

 deeply emarginate ; median fovea circular, concave depression extending 

 dorsad from it to frontal crest : frontal crest indistinct, rounded, broken ; 

 ocellar basin comparatively distinct, depressed, lateral walls linear, not strongly 

 elevated ; head and thorax not polished ; wings hyaline ; veins brownish, costa 

 and proximal half of stigma pale, distal half strongly infuscated ; saw-guides 

 with dorsal margin straight, ventral margin convex, distal portion concave, 

 distal end pointed. Length, 4 mm. 



Habitat: Ithaca, New York. No. 142-1-1. 



This species differs from nigrita Marl, in the color of its orbits. 



Pontania dotata new species. 



Male. — Body black with the following parts yellowish white : clypeus, 

 labrum, mandibles, supraclypeal area, between antennae to frontal crest, mouth- 



