39 
circular, shallow, breaking through rudimentary frontal crest; antennz 
short, not as long as head and thorax, scarcely tapering; sheath very 
narrow, elongate, not acuminate, rounded at tip; inner ray of claw con- 
siderably shorter than outer; venation normal. Color black, shining; 
labrum, mouth parts, angles of pronotum, tegule, legs except bases of 
posterior coxie, abdomen beneath, except sheath, yellowish ferruginous ; 
sheath brownish rufous, smooth, shining; antenne with flagellum 
inclined torufous beneath; veins brown, stigma and costa paler basally ; 
tarsi somewhat infuscated. 
Male.—Length 4mm.; structurally agrees with female; also colora- 
tional characters, except that the pronotum is entirely black, cox:e alto- 
gether black, and the venter of abdomen yellowish brown centrally, 
including hypopygium. 
Gall.—Gall of the type desmodioides, not differing in the dried speci- 
mens in any noticeable manner from the latter. Length 8 to 12 mm. 
Normally but one gall occurs on a leaf. The galls were received from 
Mr. H. T. Turner, Eastlake, Cal., August 26, 1883, and the adults issued 
between September 18, 1885, and March 24, 1884. 
Nine females and 3 males, 8 of which—6 females and 2 males—were 
reared from willow-leaf galls collected by Mx. Turner in California. 
(Coll. U. S. Nat. Mus.) 
One male collected at Alameda, Cal., in March by Mr. Koebele, and 
the others collected in Southern California. (Colls. U. S. Nat. Mus. 
and Aim. Ent. Soc.) 
23. Pontania gracilis new species. —~ © 
Female.—Length 5 mm.; slender, elongate species; abdomen cen- 
trally considerably broader than thorax; head very much narrower 
than thorax; clypeus distinctly, circularly emarginate; ridges of vertex 
rounded, subobsolete; frontal crest broken; antenne with joints 3 to 6 
subequal, fourth slightly longest; sheath elongate, narrow, tapering; 
claws deeply cleft; venation normal. Color in general black, shining; 
orbits, face beneath antenne, pronotum, tegule, legs, and venter of 
abdomen reddish yellow; wings hyaline; veins, including all of stigma, 
dark brown. 
Gall.—Galls somewhat similar to desmodioides, but much more robust, 
nearly spherical, extending from midrib to considerably beyond edge of 
leaf; diameter 9 to 13 mm.; surface smooth. 
Galls collected in Virginia by Mr. Pergande September 29, 1885; 
adults issued April 19 and 29, 1886, 
Two females. Virginia. (Coll. U.S. Nat. Mus.) 
24, Pontania stigmatalis new species. 
Female.—Length 4 mm.; robust; clypeus distinctly but rather broadly 
and circularly emarginate, lobes small, pointed; ridges of vertex sub- 
