44 PROCEEDINGS OF THE NATIONAL MUSEUM vol.79 



finely punctate, occiput, face, and cheeks with rather coarser punc- 

 tures than thorax, or subreticulate ; antennae rather stout, scape as 

 long as pedicel, Fl, and half of F2, moderately dilated toward base, 

 pedicel and Fl about equal in length, latter one-fifth longer than each 

 of F2 to F5, latter each about one-fifth longer than its maximum 

 thickness, length of club equal to that of F3 to F5 combined; width 

 of head and mesothorax nearly equal, pronotum about six-sevenths 

 as wide as mesothorax, dorsal punctures of thorax coarsely 

 umbilicate, bearing small white hairs ; 13 to 16 setae on submarginal 

 vein ; abdomen mostly smooth and bare, segments beyond the second 

 with a few hairs, more around ovipositor sheath, latter also coria- 

 ceous, third and fourth more or less with fine wrinkles, especially on 

 lower lateral surface. 



Male. — Like the female in color, vestiture, and sculpturing, but in 

 general slightly smaller and slenderer, from 3.2 to 3.6 mm. long. 

 The ratio of head dimensions is the same in both sexes. Antennae 

 slenderer than in the female, scape gradually dilated toward base, 

 Fl slightly longer than pedicel and one-sixth longer than F2, F3, or 

 F4, latter about equally long or F2 slightly longer than F3 or F4, 

 and each nearly two-thirds as thick as long, club not much thicker 

 than f unicle, scarcely dilated, and as long as F3 and F4 combined. 



Type locality. — Jaspar Ridge, Stanford University campus, Calif. 



Type. — Described from one female from the gall of Disholcaspis 

 eldoradeiisis (Beutenmueller) on Quercus dumosa., Stanford Univer- 

 sity collection reared by Mrs. Rose Patterson Blakeman. 



Remarks. — The description of the male is based on one specimen 

 kindly sent me by Dr. Isabel McCracken, curator of the insect col- 

 lection at Stanford University, California. That collection con- 

 tains a few other specimens. These lots of material bear record 

 numbers L. S. Jr. U. Lot 508, Subs. 19, 45, and 508, and were reared 

 by Doctor McCracken and Mrs. Blakeman. 



Doctor Kinsey sent me the following reared from California galls : 

 2 females from D. cam.escens (Bassett) on blue oak {Q. douglasi) at 

 Merced Falls, and another from the same hosts at El Portal ; 1 female 

 from D. eldoradensis var. on California white oak {Q. lohata) at 

 Diablo ; 1 female from D. plumhella Kinsey at Upland, and another 

 from the same gall on Q. duniosa at Descanso ; and 2 females and a 

 male from B. corallina (Bassett) on Q. douglasi at Napa ; the cynipid 

 hosts of the Diablo lot were reared in November, 1923, and those of 

 the remaining series issued in February and March of 1920. The 

 collection of the United States National Museum contains 3 females 

 from the galls of D. eldoradensis (Beutenmueller) on Q. lohata taken 

 at Cottonwood, Calif., on January 22, presumably 1925 ; 3 males from 

 the same locality and oak, and probably the same gall, on January 1, 

 1925 ; a series of 4 of each sex from Placer County, Calif. (55°, which 



