AO 
obsolete; antennal fovea shallow, uniting more or less with the slight 
depression about anterior ocellus; antenn very slender, rather elon- 
gate for the genus, joints 3 to 5 subequal; sheath long, narrow, regu- 
larly tapering to rather acute tip; venation normal; claws deeply cleft, 
rays subequal. Color black, shining; mouth parts, angles of pro- 
notum, tegule, and legs, including tips of coxe, whitish; upper and 
lower margins of femora are narrowly dark brown and the tips of the 
tibize and tarsi, particularly posterior pair, brownish; the posterior 
orbits are reddish yellow; wings hyaline; veins light brown, costa and 
stigma hyaline. 
One female. Mount Hood, Oreg. (Coll. Am. Ent. Soc.) 
25. Pontania desmodioides Walsh. 
1866. Nematus salicis desmodioides Walsh. Proc. Ent. Soc. Phila., vi, p. 257. 
1866. Nematus inquilinus Walsh. Proc. Ent. Soc. Phila., v1, p. 260. 
1867. Nematus salicis desmodioides Norton. Trans. Am. Ent. Soc., 1, p.211. (Cat., 
ete., p. 73.) 
1867. Nematus inquilinus Norton. Trans. Am. Ent. Soc., 1, p. 213. (Cat., etc., 
p. 1d.) 
1878. Nematus inquilinus Provancher. Can. Nat., X, p. 57. 
883. Nematus inquilinus Provancher. Faun. Ent. Can. Hym., p. 190. 
1895. Pontania inquilina Marlatt. Proc. Ent. Soc. Wash., 111, p. 266. 
Female.—Length 5 mm.; rather robust; head and thorax strongly 
punctured, somewhat opaque; clypeus deeply and narrowly emargi- 
nate, lobes rounded; ocellar basin well defined, side walls thick; frontal 
erest large, slightly notched; antennal fovea elongate, deeply exca- 
vated; claws rather deeply and evenly cleft; sheath narrow, long, reg- 
ularly tapering, scarcely excavated beneath; cerci slender, tapering; 
wings with normal venation, except that the third cubital cell is nearly 
quadrangular. Color of antenne, large spot including ocelli, stripe on 
anterior lobe of mesonotum, band in front of scutellum, most of meta- 
notum, and abdomen dorsally except sides and apex dark brown, 
approaching black (mesonotum sometimes nearly altogether black, 
except scutel) ; occiput, balance of mesonotum, and the mesepimera 
reddish brown, inclined to resinous; face, orbits, pronotum, scutellum, 
abdomen beneath, and legs yellowish ferruginous; veins and stigma 
yellowish brown, the former scarcely lighter basally. 
Male.—Length 4 mmn.; structurally about as in female; vertex with 
numerous yellowish hairs; the ocellar basin less distinctly defined and 
the antennal fovea more triangular and deepening anteriorly; venation 
as in female, except that the intercostal vein is posterior to basal. 
Color brownish black; spot beneath antenni, clypeus, mouth parts, 
lower and inner orbits, pronotum, tegulz, legs for the most part, broad 
stripe on venter of abdomen and dorsal apex of same, yellowish; 
posterior tarsi infuscated; posterior orbits reddish yellow, fuscous; 
veins yellowish brown; stigma unicolorous. 
Gall.—The gallis found on S. humilis. It is smooth, flattish, fleshy, sessile, yellow- 
ish green, monothalamous, semicircular in general shape like the seed of a Desmodium 
