120 CTXTrTDOrS calls AXr> r,AL.L.WASr>-—.\SinMEAD. VOI..XIX. 



One female, reared from a gall found on Quercus chrysolepis, at 

 Colfax, Placer County, California, October 8, 1885, by ]\Ir. Albert Koe- 

 bele; and two specimens reared January 18 and 1*9, 188(5, from same 

 galls. Other of the galls are No. 381G, U.S.N.M. 



12. ANDRICUS APICALIS, new species. 



(hiUs. — Irregular, brownish blark globular ^i\\U of a dense ])itliy 

 substance, growing on the roots of Qutrrn.s wislicrnii sometimes three 

 or four togetlun-, pressing each otlier into irregular shaix's. Diameter 

 usually about half an inch. 



Gallfly. — Female. Length, .5.8 to 7 mm. r>right brick red, the man- 

 dibles black at tii»s. Head and thorax finely punctate with some larger, 

 coarser punctures scattered over the surface, and almost free from 

 pubescence. Cheeks full, bulging. Antenna' ll-jointed, filiform, the 

 third joint slightly longer than fourth and juirrowed toward base, the 

 apical joint twice as long as the preceding, fusiform. 



Parapsidal grooves distinct, a more or less distinct medial groove and 

 distinct grooved lines on the shoulders. Scutellum rugose, with two 

 large fovejTB at base, separated by a carina; pleura anteriorly slightly 

 rugose, posteriorly nearly smooth, with some very delicate stria*. Ab- 

 domen smooth, with a few hairs on the side of second segment; the 

 terminal segments show a fine, delicate punctuation; the spine of the 

 ventral Aalve is long. Wings hyaline, except the entire apical third, 

 which is smokj^ or <lark brown, the veins stout, black, the angular pro- 

 jection in marginal cell at base being very distinct. 



Type.—:^o. 30()7, U.S.N.M. 



Three specimens, reared by Mr. Albert Koebele, from galls collecte<l 

 in Sacramento (^^ounty, California, but the year of (!ollecting and the 

 date of rearing are not given. A single specimen (Xo. o714) was reared 

 February 17. 188(5. The bright red color and smoky apices of wings 

 will readily distinguish the species. 



i:;. ANDRICUS CONGREGATUS, new species. 



GolJ. — An irr(\gular. rugose, yellowish brown woody swelling, con- 

 taining nunu'i'ous cells growing apparently from the extreme tips of 

 very slender twigs of (^)uercns clii'ysolepis, the gall api)earing to have 

 a long peduncle, or it maybe at the apex of the petiole of a leaf, the 

 leaf in conse(pu'nce l)eing aborted. The gall is more or less contracted 

 inthemiddle and varies in length fi-om l* to4 cm., and in diameter fntin 

 1 to 2 cm. 



GaUjJy. — Female. Length, L* mm. Pale ])rown or brownisii yellow, the 

 eight terminal antennal joints, the middle and posterior tibias metatho- 

 rax, abdomen dorsally, and wing veins brown. 



Head and thorax closely, uniformly punctate. Antenna' 14 or ir> 

 jointed, depending ui)on •wfiether the terminal joint, which ])resents a 

 rather distinct suture, is counted as one or two joints. The terminal 



