55 
to limbatus Cresson and harringtoni n. sp., yet differs sufficiently, par- 
ticularly in the male sex, to warrant the creation of a new species. It 
is possible that this is an introduced species, but if so it seems not to 
have been described abroad. It was found abundantly on Russian 
willow introduced into Canada by the late Charles Gibbs. 
13. Pteronus kincaidi new species. 
Female. — Length 6.5 mm.; rather robust; abdomen broad, scarcely 
tapering until near tip; clypeus distinctly emarginate, lobes broad and 
rounded; walls about ocellar basin nearly obsolete; frontal crest 
strongly developed, slightly broken by backward extension of elongate 
antennal fovea; antenme short, scarcely tapering, joint 4 a little longer 
than 3; venation normal; stigma broad, rounded on lower margin; 
claws deeply and evenly cleft; sheath very broad, robust, scarcely 
tapering, rounded at apex; cerci short, tapering. Color black; space 
between antenme and face beneath including narrow orbits, pronotum, 
tegulae, venter of abdomen extending over onto the sides of dorsum, 
especially on the posterior margin of the segments, and the legs rather 
dark resin yellow; extreme bases of coxae and the hind tarsi particu- 
larly, with extreme tips of hind tibiae infuscated; sheath dark brown; 
wings hyaline; veins, including costa and stigma, dark brown. 
Male. — Males agree with the females in general characteristics; proci- 
dentia short, narrow, and rounded apically, rather broad basally ; hind 
tibia3 rather strongly infuscated, especially toward tip; dorsal arcs of 
abdomen entirely black ; antenme more elongate and somewhat more 
robust. 
Nine females and five males collected in April and May by Trevor 
Kincaid, Olympia, Wash. (Coll. Cornell Univ.) 
14. Pteronus foveatus new species. 
Female. — Length5.5mm. ; moderately robust, shining; clypeus broadly 
emarginate, lobes sharp pointed; ridges about ocellar basin strongly 
and sharply defined ; frontal crest unbroken ; antennal fovea large, cir- 
cular, deeply and sharply excavated ; antennae a little longer than head 
and thorax, scarcely tapering, joints slender, 3 and 4 subequal; sheath 
narrow, tapering, upper edge straight, tip rounded, hairs minute; claws 
not very deeply cleft, rays equal; venation about normal; third cubital 
cell more than twice as Wide at apex as at base; stigma narrow, elon- 
gate, subacuminate. Color of antenna, large spot extending back from 
occiput including ocelli with branches running down in front of eyes, 
base of the head, thorax, bases of first six dorsal segments of abdomen 
except on outer edges, and the epimera except anterior upper angles 
of the mesepimera black; antennae slightly rufous toward tip; sheath 
brownish; body otherwise yellowish ferruginous, including spot below 
antennas, mouth parts, angles of pronotuin, tegukaj, lateral edges and 
