115 
2. Pristiphora labradoris Norton. 
1867. Nematus labradoris Norton. Trans. Am. Ent. Sue, I, p. 190. (Cat., etc., 
p. 58.) 
1878. Nematus labradoris Provancher. Nat. Can., x, p. 53. 
1883. Nematus labradoris Provancher. Faun. Ent. Can. Hyni., p. 185. 
Female. — Length 5 mm.; short, robust; head and thorax densely 
granulate-punctate, with uiinnte hoary pubescence; abdomen smooth, 
shining; head narrow, not more than half as wide as thorax, strongly 
trilobed when viewed from above; clypeus broadly but very shallowly 
emargiuate, almost truncate; frontal crest and sides of ocellar basin 
indistinct, almost wanting; fovea indistinct; antennae short, slender, 
scarcely tapering, third to fifth joints subequal; intercostal cross 
vein nearly twice its length anterior to basal vein, inclined; third 
cubital cell not much more than twice as long as wide at base, venation 
otherwise normal; stigma tapering regularly to somewhat acuminate 
apex from rather broadly ovate base; sheath tapering on both edges 
to rounded extremity, and with very distinct and heavy scopa; cerci 
strongly tapering; inner tooth of claw minute. Color black; margin 
of labrum, bases of mandibles and palpi, tibia 1 and tarsi, apical half of 
anterior pair and extreme tips of two posterior pairs of femora, fulvous, 
more or less infuscated; veins light yellowish brown, including stigma 
and costa; wings hyaline, or but slightly infuscated. 
One female, Norton's type ( ?). Labrador. (Coll. Am. Ent. Soc.) 
3. Pristiphora sycophanta Walsh. 
1866. Pristiphora sycophanta Walsh. Proc. Ent. Soc. Phil.. VI, p. 263. 
1867. Pristiphora sycophanta Norton. Trans. Am. Ent. Soc, I, p. 76. (Cat., etc., 
p. 46). 
1867. Pristiphora tibialis Norton. Trans. Am. Ent. Soc, I, p. 76. (Cat., etc., p. 46). 
1878. Pristiphora tibialis Provancher. Nat. Can., X, p. 50. 
1881. Pristiphora sycophanta Packard. Bull. 7, U. S. Ent. Connn., p. 141. 
1882. Nematus sycophanta Kirhy. List Hym. Brit. Mns., i, p. 110. 
1882. Nematus tricialis Kirhy. List Hym. Brit. Mus., i, p. 140. 
1883. Pristiphora tibialis Provancher. Faun. Ent. Can. Hym., p. 182. 
1886. Pristiphora sycophanta Provancher. Add. Fanu. Can. Hym., p. 22. 
1890. Pristiphora sycophanta Packard. Filth Rept. U. 8. Ent. Coram., p. 598. 
1894. Nematus tibialis Dalla Torre. Cat. Hym., I, p. 266. 
1895. Pristiphora sycophanta Marlatt. Proc. Ent. Soc, Wash., in, p. 267. 
1895. Pristiphora tibialis Dyar. Trans. Am. Ent. Soc, xxu, p. 301 (larva). 
Female. — Length 5 mm.; moderately robust; head small, narrow, 
not much more than half the width of thorax; clypeus nearly truncate; 
vertex smooth, ridges rounded, subobsolete; fovea very minute, circu- 
lar; antenna? slender, slightly tapering, third joint much longer than 
fourth; claw with very minute inner tooth; venation normal, except 
that the second cubital is wanting. Color black, shining, including 
mouth parts and teguhe; anterior and middle tibia' and tarsi yellowish; 
posterior tibia 1 , except apical third, whitish; wings nearly hyaline; 
veins and stigma brown. 
