38 
Many specimens. New Hampshire, New York, Massachusetts, Penn- 
sylvania, New Jersey, and Canada. (Colls. Am. Ent. Soc. and U. S. 
Nat. Mus.) 
Galls: Boscawen, N. H., C. V. Riley, collector, July 16-25, 1883, "on 
Salix fragilis, a large tree, 50 to 70 feet high, with a rough bark and 
trunk, smooth branches, and galls very plentiful on younger leaves all 
over the tree." The adults were obtained between April 29 and May 
21, 1881 ; also chalcidid and other parasites. 
Magnolia, Mass., July 10, 1883; gallmaker not reared. Hymenop- 
terous parasites issued July 20, 1883. 
Richfield Springs, N. Y., Theo. Pergande, collector, February 8, 1880; 
adults issued March 3 to April 21, 1887; also chalcidid parasites and 
a dipterous guest fly. 
Pittsburg, Pa., J. C. Leach, collector, July 25, 1891. 
Pointe au Pic, Quebec, Canada, E. Corning, collector, August 28,1891. 
20. Pontania truncata new species. 
Female. — Length 1 mm.; moderately robust; clypeus almost squarely 
truncate, scarcely excavated; ridges about ocellar basin and frontal 
crest rounded, almost obsolete; antennal fovea large, circular; an tenure 
scarcely tapering, not longer than the head and thorax; claws not very 
deeply notched, inner ray considerably shorter than outer; sheath 
narrow, elongate, not acuminate, rounded at tip; venation normal. 
Color black, shining; clypeus, mouth parts, angles of pronotum, tegulae, 
venter of abdomen, and legs, except bases of posterior coxai, yellowish 
ferruginous; sheath brownish at apex and on margin; antenme fulvous 
beneath, except on scape and first joint of flagellum. 
One female. Southern California. (Coll. Am. Ent. Soc.) 
21. Pontania atriventris new species. 
Female. — Length 4.5 mm.; moderately robust; clypeus distinctly 
emarginate, lobes minute, pointed; frontal and lateral ridges of vertex 
rounded, subobsolete; antennae with joints 3 to 5 subequal, fourth joint 
slightly longest; sheath narrow, elongate, tapering; claws deeply cleft; 
venation normal. Color black, shining, including orbits and venter of 
thorax and abdomen ; legs beyond coxa} yellowish brown ; femora darker, 
with upper and lower edges and the tips of posterior tibhe and tarsi 
infuscated ; clypeus and mouth parts pale; wings hyaline; veins brown ; 
basal half of stigma hyaline. 
Three females. Mount Hood, Oreg. (Coll. Am. Ent. Soc.) 
22. Pontania californica new species. 
Female. — Length 4.5 mm.; moderately robust; clypeus rather deeply 
and not broadly excavated, lobes rounded; head rather strongly punc- 
tured ; ridges about ocellar basin not well defined ; antennal fovea Droad, 
