March, .9-M.] MacGii-livray: Xkw Spf.cies of Xkmatinak. 33 



This species differs from pullicarnis Xort. in the coloration of 

 the head. 



Pontania decrepita luw species. 



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

 labruni, mandibles, mouth-parts, line on collar. teK'ul.e. and legs; abdomen, 

 particularly the caudal portion, rufous; clypeus broadly shallowly cmarginate ; 

 median fovea shallow, broad, continuous with ocellar basin ; frontal crest 

 except at sides, obsolete ; ocellar basin distinct, concave, lateral walls distinct, 

 rounded, polished, open between ocelli; antenna: with third segment slightly 

 longer than fourth and fourth slightly longer than fifth ; head and thorax pol- 

 ished ; wings hyaline: veins, stigma, and costa concolorous and pale; saw- 

 guides stout, dorsal margin concave, ventral margin convex, distal portion 

 strongly obli(|uo, pointed above. Length, 3 mm. 



Habitat: Ithaca. Xew York. Xo. 3S-~-5- 



This species differs from tcrniiiialis Marl, in the form of its saw- 

 ffuides. 



Pontania demissa new species. 



Female. — Body black with the following parts yellowish rufous: clypeus, 

 labrum, supraclypeal area, mandibles, mouth-parts, genal orbits, occipital and 

 vertical orbits broadly, frontal orbits narrowly, collar, tegulje, legs except 

 proximal portions of coxx, venter of abdomen, and caudal abdominal tcrgum ; 

 clypeus shallowly narrowly emarginate : median fovea an elongate, shallow 

 depression continuous with ocellar basin : frontal crest represented only as an 

 indefinite portion of lateral boundary of ocellar basin ; ocellar basin flat, de- 

 pressed, lateral walls distinct, rounded, open between ocelli : antennx with 

 third segment slightly longer than either of the subequal fourth and fifth seg- 

 ments ; wings hyaline; veins, costa, and stigma concolorous and pale; saw- 

 guides with dorsal margin straight, ventral and distal margins obli<iuely. con- 

 vexly rounded, bluntly pointed above. Length, 4 mm. 



Habitat: Ithaca. Xew York. Xo. 191-1-1. 



This species can be recojirnized throucfh the ah.sencc of the frontal 

 crest. 



Pontania dsedala new species. 



Female. — Body black with the following parts yellowish white : labrum, 

 mandibles, mouth-parts, gcnal orbits, tegul.-c, and legs except proximal por- 

 tions of coxx ; clypeus broadly slightly emarginate ; median fovea broad, cir- 

 cular, sloping sides, deep at center; frontal crest not prominent, transverse, 

 not broken, linear between ocellar basin and median fovea : ocellar basin, an 

 oval area surrounding median ocellus, deep, longer than broad, lateral walls 

 rounded, indistinct; third segment of antenn.x longer than fourth, fourth 

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



