101 
9 
4 and 5 subequal, longer than 3; sheath short, tapering, obtusely 
pointed; claws with minute inner tooth; venation normal, except that 
the second recurrent is interstitial with the second cubital; stigma very 
narrow and acuminate. Color black; tips of elypeus, mouth parts, 
extreme angles of pronotum, tegulie, tip of abdomen except sheath, and 
outer half of femora reddish yellow; tibize pale yellowish; tarsi slightly 
infuseated; sides of mesepimera slightly reddish; wings hyaline, veins 
dark brown; costa and stigma hyaline. 
Two females. Mount Washington, N. H. One labeled as having 
been taken at an elevation of about 6,000 feet, July 9, 1891. (Coll. 
Cornell Univ.) 
12. Pachynematus montivagus new species. 
Female.—Length 8 mm.; robust; head dilated back of eyes; head and 
thorax opaque from rather fine and dense puncturing, together with very 
short and inconspicuous pubescence; clypeus broadly and shallowly 
emarginate; pentagonal area distinctly defined, lateral walls sharp, 
minute; erest unbroken, not prominent; fovea oval; antenne short, 
slender, tapering, joints 3 and 4 subequal; sheath short, tapering; claw 
with short inner tooth; venation normal, except that second recurrent 
is interstitial with second cubital; stigma broad, rounded beneath, 
searcely tapering. Color black; labrum, angles of pronotum, tegulie, 
extreme tip of abdomen, venter for the most part, and Jegs yellowish, 
inelined to reddish on femora; cox except tips and extreme bases of 
femora intuseated; tips of posterior tibiee and their tarsi: brownish; 
abdomen with brownish spots beneath, noticeably at base; wings 
hyaline, or nearly so; veins brown; stigma and costa light yellowish, 
almost hyaline. 
One female. Mount Washington, N. H. (Coll. Cornell Univ., 
This species resembles the preceding in size and general characteris- 
ties, but diverges notably in the character of the stigina and pubescence 
of head and thorax. 
15. Pachynematus coloradensis new species. 
Female.—Length 6 mm.; moderately robust, shining; head dilated 
back of eyes; clypeus broadly, circularly emarginate; pentagonal area 
distinctly defined, but walls rounded; crest low, unbroken; fovea 
shallow, extending over bases of antennwe; antennw slender, tapering, 
joint 4 slightly longer than 3; venation normal, except that the second 
recurrent is nearly interstitial with second cubital; stigma rounded, 
seareely tapering; sheath obliquely tapering on lower margin, pointed; 
claws with minute inner tooth. Color black, shining; posterior orbits, 
mouth parts including tips of clypeus, angles of pronotum, teguke, 
tip of abdomen except sheath, outer third of femora, and the tibice 
and tarsi pallid more or less infuscated, particularly tarsi and orbits; 
