78 
4. Amauronematus gracilis new species. 
Female. — Length 8 mm.; 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 autennal fovea; fourth joint of antennae 
longer than third; upper discal cell of hind wings very elongate and 
considerably exceeding lower; sheath somewhat elongate, rounded at 
apex; cerci very long and filiform. Color dull brownish black; tri- 
angle between bases of antenna 4 , orbits and oral region, angles of pro- 
notum, more or less of apical ventral segments, joints of legs, includ- 
ing most of the anterior tibiae, yellowish; stigma and wing veins dark 
brown; wings slightly infnscated; labium and palpi brown. 
Two females. Ithaca, N. Y., May 8, and Natick, Mass., April 19. 
(Coll. Cornell Univ.) 
5. Amauronematus rap ax (J res son. 
1880. Nematus rapax Cresson. Trans. Am. Ent. Soc, VIII, p. 4. 
Male. — Length 7 mm.; exp. al. 17 mm.; clypeus circularly but not 
deeply eniarginate; frontal crest and sides of ocellar basin subobso- 
lete; antennal fovea broad, shallow, not sharply limited, and extending 
indistinctly into ocellar basin; antenna' robust, flattened, not longer 
than head and thorax, joints 3 to 5 Bubequal, 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 eniarginate; outer ray of 
claw distinctly longer than inner. Color black, with hoary pubescence, 
particularly on thorax and legs; tips of femora, tibia', and two anterior 
pairs of tarsi, fulvous ; outer orbits tinged with rufous; wings distinctly 
but not strongly infnscated. 
One male. Nevada. (Coll. Am. Ent. Soc.) 
(J. Amauronematus rufipes new species. 
Male. — Length 1) mm.; very slender, elongate; clypeus very broadly 
eniarginate; ocellar basin distinctly defined but not deeply excavated; 
frontal crest not strongly developed, fovea triangular; antennae 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 imsterior tibia?, reddish; tarsi 
inclined to yellowish, more or less infuscated, particularly posterior 
pair; wings hyaline; veins dark brown ; costa, including tegulae, some- 
what paler. 
• 
One male. Indiana. (Coll. Cornell Univ.) 
