28 
which is oval and not deeply excavated; antennz short, scarcely 
tapering; sheath rather broad, acuminate, but not very sharply pointed, 
hairsrather long and abundant; cerci pointed; claws very large, deeply 
cleft; venation about normal; intercostal vein nearly at right angles 
with costa, and outer veins of discal cells of hind wings interstitial, or 
nearly so. Color black, shining; face below antennae, orbits, mouth 
parts, angles of pronotum, tegule, and legs, except extreme bases of 
coxe, yellowish ferruginous; antennie ferruginous beneath, especially 
toward apex; veins light brown; base of stigma and base of costa pale; 
abdomen inclined to rufous beneath. 
Male.—Length 4.5mm.; antenne much longer and antennal fovea 
somewhat narrower than in female; tip of abdomen strongly recurved ; 
color as in female, except that bases of posterior coxie only are black, 
and the abdomen ventrally with more or less of the apex of the last 
dorsal segment is yellowish ferruginous. The antenne also are almost 
altogether yellowish, except scape and basal joints of the flagellum 
above. 
Five females and five males. Illinois, Texas, and New Hampshire. 
(Colls. Am. Ent. Soc. and U. 8. Nat. Mus.) 
5. Pontania agilis Cresson. 
1880. Nematus agilis Cresson. Trans. Am. Ent. Soc., vit, p. 9. 
Female.x—Length 5mm.; very robust; clypeus broadly and shallowly 
excavated; lobes minute, rounded; vertex elevated, but with ocellar 
basin not very distinctly limited; ridges rounded; frontal crest not dis- 
tinctly raised; antennal fovea circular, shallow; claws very minutely 
and microscopically cleft at extreme apex; sheath strongly acuminate, 
broad basally; cerci tapering; venation normal. Color yellowish ferru- 
ginous, resinous, shining; antenns, spot including ocelli, small cireu- 
lar spot on occiput, stripe on each of the lobes of mesothorax, base of 
seutellum, metathorax, more or less of first segment of abdomen, black ; 
veins yellowish brown; stigma and costa yellow, the former edged with 
brown at tip. 
Male.—Length 4 to 4.5 min.; very slender, graceful; head and mouth 
parts about as in female; antenne very long, slender, longer than entire 
body; claws cleft as in female. Color: Large spot on vertex, extending 
considerably beyond ocelli and backward over occiput, mesothorax, 
metathorax, abdomen, dorsaliy except sides of the terminal segments, 
seape and flagellum above, black; balance of insect, including venter, 
legs, lower surface of antennie, except extreme tip, yellowish ferrugi- 
nous; veins brown; stigma yellow, edged with brown. 
One female and five males. Nevada and Washington. (Coll. Am. 
Ent. Soc.) 
