103 
rounded, crest slightly broken; fovea shallow (antenna 1 wanting); vena- 
tion normal, except that the second recurrent is interstitial with the 
second cubital; stigma broad, rounded beneath, somewhat acuminately 
pointed; claws with minute inner tooth. Color black, including mouth 
parts, pronotum, and tegulae; tips of coxa 1 , trochanters, tips of femora, 
the anterior tibia 1 , and the tarsi pallid, strongly infuscated; veins, in- 
cluding costa and stigma, dark brown; wings nearly hyaline, slightly 
smoky. 
One female, MoGillivray's type. Olympia, Wash. Trevor Kincaid, 
collector. (Coll. Cornell Univ.) 
17. Pachynematus nigropectus Cressqn. 
1SS0. Xematus nigropectus Cresson. Trans. Am. Ent. Soc, vin. p. 6. 
Female. — Length 8 mm. : moderately robust, glistening; clypeus very 
gently eniarginatc ; frontal crest and lateral margins of ocellar basin 
distinctly but not strongly developed, former unbroken; antenna! fovea 
deep, expanding broadly posteriorly; antenna 1 slender, filiform, joint 4 
longest, 5 longer than 3; venation normal; stigma very broad, ovate, 
somewhat acuminate at apex ; sheath narrow, regularly rounded at apex; 
cerci very narrow, not tapering; inner claw tooth rather large, sharp. 
Color for the most part luteous; face and upper and posterior orbits 
pallid; antenna 1 , vertex and occiput, prosternum, mesonotum, metano- 
tum, broad stripe on dorsal sclerites of abdomen except last, basal half 
of inesepimera (pectus), and the metepisterna black; tip of sheath and 
tips of posterior tibia 1 , the posterior tarsi, and the anterior tarsi to a 
less extent, infuscated ; veins, including stigma and the costa nearly 
to base, brown; wings slightly infuscated, almost hyaline. 
One female. Nevada. (Coll. Am. Ent. Soc.) 
18. Pachynematus punctulatus new species. 
Female. — Length 6.5 mm. ; rather robust, head and thorax strongly 
punctured and somewhat opaque; clypeus, labrum, and pleurae with 
rather long and dense yellowish hairs; clypeus shallowly emarginate, 
lobes broad and rounded; frontal crest and elevated ridges about ante- 
rior ocellus prominent, former unbroken: antcnnal fovea broad, oval; 
second recurrent interstitial or received in third cubital cell; second 
cubital cross vein two-thirds as long as third ; upper middle cell of hind 
wings very little exceeding lower; stigma broad, rounded on lower 
margin, widest at center; sheath broad, truncate; cerci moderately 
slender, tapering; inner tooth of claw short, obtuse. Head and thorax 
for most part, basal plates, base of first dorsal segment, sheath, and 
extreme bases of coxa* brownish black ; upper orbits and some marks on 
dorsum of thorax, including most of scutellum, reddish; triangle below 
antenna 1 , tips of clypeus, labrum, pronotum, tegulae, legs, and abdomen 
including cerci reddish yellow ; extreme tips of posterior tibiae and the 
