32 
in general resinous; base of antenna 1 , space about ocelli, stripe on each 
lobe of mesonotum, apex ot scutelluin, metanotum, dorsal segments of 
abdomen, except last, extending over sides to ventral arc, large spot 
on pectus, and sheath, especially dorsally, brownish black; outer two- 
thirds of antennae reddish brown; tips of posterior tibiae and all the 
tarsi, slightly darker; wings hyaline; veins light yellowish brown; 
base of stigma hyaline. 
One female. Algonquin, 111. (Coll. Cornell Univ.) 
11. Pontania acuminata new species. 
Female. — Length 5.5 mm.; rather robust; abdomen strongly taper- 
ing from just beyond middle; clypeus rather shallowly, somewhat 
angularly, notched; vertex coarsely punctured and roughened; frontal 
crest prominent, broadly curved, almost straight; sides of ocellar 
basin low, but well defined; antenna! fovea shallow, indistinct, 
expanding apical ly; antennal joints, 3 and 4 subequal; intercostal 
vein at right angles with costa; stigma very elongate, narrow, dis- 
tinctly acuminate; sheath broad, slightly concave on upper margin, 
and decidedly produced at tip, which is obtusely pointed, and with 
rather dense tuft of hairs; cerci robust, but slightly tapering; claws 
deeply cleft, rays subequal. Color: Antennae, spot on head back of 
ocelli and extending over occiput, center of lobes of mesonotum, apical 
halt of scutelluin, metanotum and basal plates, more or less of abdo- 
men basally and centrally to apex, sheath, and sides of the metatho- 
ra.x black: mesepimera reddish brown; posterior tibiae and tarsi 
strongly infuscated, anterior tarsi less so; body generally otherwise 
reddish ferruginous, somewhat infuscated; mouth parts, angles of pro- 
notum, tegulae and anterior legs and base of all legs, yellowish; veins, 
including stigma and costa nearly to base, dark brown. 
One female. Michigan. (Coll. U. S. Nat, Mus.) 
12. Pontania robusta new species. 
Female. — Length 4.5 mm. ; very robust ; clypeus not very deeply emar- 
ginate, lobes broad, rounded; ocellar basin with not very distinct lat- 
eral walls, Inxmdly uniting with very large, shallow antennal fovea, the 
two depressions appearing almost as one; antennae short, joint 4 a 
little longer than 3; sheath short, broad, rounded at tip, emarginate 
beneath; venation normal, except that outer veins of posterior discal 
cells are interstitial; claws rather deeply cleft, rays parallel. Color in 
general resinous yellow, shining; antennae above, quadrate spot on 
vertex, including ocelli and extending over occiput, quadrate spot on the 
center of mesonotum, line down center and the tip of the scutellum, 
together with the dorsum of the abdomen, except lateral margins, 
brownish black; antennae fulvous beneath; mouth parts whitish, with 
the tips of the mandibles reddish brown; wings hyaline; veins brown, 
