84 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 7& 



only a twelfth broader than pronotum, and as broad as mesothorax; 

 umbilicate impressions of pronotum and mesonotiim shallow and in- 

 distinct, these nota rather sparsely hairy, anterior half of meso- 

 pleura shagreened, posterior portion feebly aciculate and minutely 

 and sparsely punctate; about 12 setae on submarginal vein; propo- 

 deal surface rather feebly and variously rugose, the groove broad, 

 moderately concave transversely, and not prominently sculptured, 

 limited in front by V-shaped carina, apex of V acute, more so than 

 in other species studied; abdomen highly polished, smooth, and bare, 

 except posterior face around ovipositor sheath, which is conspicu- 

 ously hairy. 



Male. — Length 2 mm., slenderer and legs blacker than female, color 

 otherwise more variable; only oral area yellowish as on the female, 

 or face almost up to antennal fossae, circumocular band broadly be- 

 low and narrowly above, and a stripe from each eye obliquely toward 

 scrobe, ochreous-yellow ; lateral surfaces and hind edge of pronotum, 

 and a pair of subparallel lines on lateral thirds converging toward 

 front margin, yellow; mesothorax black, sometimes upper part of 

 mesopleura and lower edges of scapulae, axillae and scutel, yellow 

 brown; legs as on female but the brown black of middle legs both 

 more extensive and intense; propodeum, peduncle, and abdomen 

 brown black. 



Head not so robust as on female, not quite two-thirds as long as 

 broad, sculpture of head, mesopleura, and abdomen as on female, but 

 carina limiting front of propodeal groove with rounded apex on one 

 specimen; 12 or 13 setae on submarginal vein; ratio of scape and 

 pedicel as in female, Fl a third longer than thick, F2 a fifth longer 

 than wide, rest of antennae lacking, but F3 to F4 probably only 

 slightly longer than wide. 



Type locality. — Paso Robles, Calif. 



ry/?e.— Female, U.S.N.M. No. 42247. 



Remarks. — Described from the type, the allotype, and two male 

 paratypes. The allotype is placed with the type in the National 

 Museum and the paratypes are in my collection. All these were 

 reared by Dr. A. C. Kinsey at the type locality from the galls of 

 Andricus wiltzae Fullaway on Quercus lohata. The cynipid gall 

 makers issued on March 7, 1920. 



Later I find six females (Hopk. U. S. 15608") reared by L. H. 

 Weld on June 5 and 17, 1918, from undetermined galls on Q. svber, 

 at San Jose, Calif. They range from 1.6 to 2.3 mm. in length, the 

 head dimensions vary from five-ninths to two-thirds as long as broad, 

 head rounded, subglobose, and the setae on the submarginal vein 

 number from 11 to 13, mostly 12. This lot agrees with the types also 

 in the following essential respects : F2 to F5 subequal, all about as 

 broad as long, but becoming gradually larger toward club, face and 



