49 
claws evenly but not very coarsely notched. Color black ; area about 
bases of antenna}, orbits, and mouth parts, pronotuin, tegular, legs for the 
most part, and venter of abdomen pale; femora, tips of hind tibiae and 
their tarsi, brown; veins and stigma brown, wings hyaline, slightly 
brownish beneath stigma. 
Two females. Massachusetts and Pennsylvania. (Coll. Am. Ent. 
Soc.) 
4. Pteronus pacificus new species. 
Female. -^-Length 6.5 mm.; robust, shining; clypeus broadly but dis- 
tinctly emarginate; walls of ocellar basin distinctly defined; frontal 
crest unbroken; fovea deep, oval; antennae short, slender, scarcely 
tapering, joints 3 to 5 subequal; venation normal, except that the third 
cubital cell is only about half as wide at base as at apex; stigma 
narrow, regularly rounded on lower margin, acuminate; sheath broad, 
tapering to obtuse tip; claws not very deeply notched. Color black; 
clypeus, mouth parts, extreme angles of pronotum, tegulae. terminal 
dorsal segment, more or less of venter of abdomen, together with legs 
except bases of coxa?, dull resinous; posterior orbits reddish; wings 
hyaline; stigma light yellow; veins otherwise light brown. 
Four females. Olympia, Wash. ,Trevor Kiucaid, collector. (Coll. 
Cornell Univ.) 
5. Pteronus limbatus Cresson. 
1880. Ncmatus limbatus Cresson. Trans. Am. Ent. Soc, vin, p. 8. 
Female. — Length 7 mm.; rather short and robust, finely punctured, 
but shining; clypeus very slightly and broadly notched; frontal crest 
very prominent, broadly curved, unbroken; sides of ocellar basin 
strongly and sharply raised; antennal fovea small, indistinct; antennae 
short, not much longer than head and thorax, tapering, third and fourth 
joints subequal; intercostal vein a little anterior to basal, not, or but 
slightly, inclined, second recurrent interstitial with second transverse 
cubital (in one specimen latter vein is wanting), and outer veins of mid- 
dle cells of hind wings also interstitial ; second and third transverse 
cubitals of nearly equal length; stigma elongate, narrow, terminating 
rather abruptly; sheath short, broad, obtusely pointed; cerci short, 
robust, scarcely tapering; claws deeply notched, rays about equal. 
Color of head, thorax, broad stripe along dorsal center of abdomen, 
sheath, cerci, and extreme tips of posterior tibia? and their tarsi 
brownish black; upper orbits and sides of mesonotum tinged with 
reddish; clypeus and mouth parts, most of pronotum, tegulae, lateral 
third of dorsum of abdomen, all of venter of abdomen, and legs yel- 
lowish ferruginous; tips of anterior tarsi slightly infuscated; veins, 
including costa nearly to base, and stigma brown. 
Two females, Cresson's types. Illinois. (Coll. Am. Ent. Soc.) 
13449—^0. 3 4 
