78 
4. Amauronematus gracilis new species. 
Female.—Length 8 min.; elongate, slender; clypeus rather broadly 
and shallowly emarginate, lobes triangular; walls of ocellar basin dis- 
tinctly defined; crest narrow, not extending laterally, slightly broken 
by deeply excavated, elongate antennal fovea; fourth joint of antennz 
longer than third; upper discal cell of hind wings very elongate and 
considerably exceeding lower; sheath somewhat elongate, rounded at 
apex; cereci very long and filiform. Color dull brownish black; tri- 
angle between bases of antennie, orbits and oral region, angles of pro- 
notum, more or less of apical ventral segments, joints of legs, includ- 
ing most of the anterior tibie, yellowish; stigma and wing veins dark 
brown; wings slightly infuscated; labium and palpi brown. 
Two females. Ithaca, N. Y., May 8, and Natick, Mass., April 19. 
(Coll. Cornell Univ.) 
5, Amauronematus rapax Cresson. 
1880. Nematus rapax Cresson. Trans. Am. Ent. Soc., viii, p. 4. 
Male.—Length 7 mm.; exp. al. 17 mm.; clypeus circularly but not 
deeply emarginate; frontal crest and sides of ocellar basin subobso- 
lete; antennal fovea broad, shallow, not sharply limited, and extending 
indistinctly into ocellar basin; antennie robust, flattened, not longer 
than head and thorax, joints 3 to 5 subequal, fourth and fifth slightly 
longer than third; venation normal; stigma broadest near base, taper- 
ing uniformly to attenuated apex; procidentia small, strongly keeled, 
truncate; hypopygium narrow at tip, slightly emarginate; outer ray of 
claw distinetly longer than inner. Color black, with hoary pubescence, 
particularly on thorax and legs; tips of femora, tibixe, and two anterior 
pairs of tarsi, fulvous; outer orbits tinged with rufous; wings distinctly 
but not strongly infuscated. 
One male. Nevada. (Coll. Am. Ent. Soc.) 
6. Amauronematus rufipes new species. 
Male.—Length 9 mm.; very slender, elongate; clypeus very broadly 
emarginate; ocellar basin distinetly defined but not deeply excavated ; 
frontal crest not strongly developed, fovea triangular; antenne very 
long and slender, fourth joint longest, nearly a third longer than third 
joint; first cubital cross vein wanting; stigma very elongate, narrow, 
acuminate; upper cell of lower wings exceeding lower by one-third its 
length; procidentia short, more than twice as broad as long, truncate; 
claws coarsely notched. Color black, shining; basal joint of maxillary 
palpi, all of legs except apical half of posterior tibiz, reddish; tarsi 
inchned to yellowish, more or less infuscated, particularly posterior 
pair; wings hyaline; veins dark brown; costa, including tegule, some- 
what paler. 
One male. Indiana. (Coll, Cornell Univ.) 
