368 Annals Entomological Society of America [Vol. IV, 



shorter, 10th and following segments subequal, except last, which is 

 longer than the penultimate, all longitudinally grooved or channeled 

 and pubescent. Pronotum broad in the middle, rugose, mesonotum 

 transversely wrinkled, folds rather shallow, parapsidal grooves reeaching 

 less than half-way to anterior margin, median longitudinal lines and 

 smooth lines over base of wings distinct, mesopleura aciculate, triangu- 

 lar patch beneath wings smooth and shining, scutcllum deeply rugose, 

 fovea? large, circular shallow, metathorax almost smooth. Abdomen 

 smooth and shining, 2nd tergite completely obscuring following seg- 

 ments, pubescent at base, posterior margin punctate, sheath of ovipos- 

 itor conspicuous, pubescent. Wings hyaline, pubescent, veins basally 

 heavy, black, radial cell closed, short, vein at base only slightly bent, 

 areolet subobsolete, onh' one of its enclosing veins distinct, cubitus not 

 reaching basal vein. Length 1.25 mm. 



Bred from galls of Holcaspis eldoradensis on Quercus lobata. 

 Habitat. Jasper Ridge, near Stanford University, Cal. 

 (R. W. Patterson.) 



Synergus ochreus n. sp. 



Female. Brown, the legs and face light brown, eyes, ocelli, tips of 

 mandibles, pecten, dorsal vitta on abdomen, ventral valve and tips of 

 tarsi black. Head rugose, face radiately striate, subdorsal stria? from 

 base of antennae to ocelli and continued around eyes, antennas 15-seg- 

 mented, 1st segment stout, obconic, 2nd narrowly ovate, half the length 

 of the 1st, 3rd-6th subequal, one-third longer than 1st, 7th-9th progres- 

 sively shorter, 10th and following segments subequal. Pronotum wide 

 in the middle, transversely rugose, pubescent, mesonotum transversely 

 wrinkled or folded, parapsidal grooves complete, widely separated, 

 obscured by transverse folds, a median longitudinal groove posteriorly 

 reaches half-way to anterior margin, median longitudinal lines short, 

 smooth lines over base of wings distinct, mesopleura transversely 

 aciculate and shining, pubescent above and below, scutellum cushion- 

 shaped, rounded posteriorly, faintly rugose and pixnetate, each puncture 

 bearing a hair, basal foveas large, circular or transversely oval and 

 shallow, bottom punctate, shining, pubescent. Abdomen compressed, 

 smooth and shining, 2nd tergite reaching apex and almost wholly 

 obscuring following segments, faintly but broadly punctate on posterior 

 margin, ventral valve reaching line of the tergum, black. Wings 

 hyaline, pubescent, veins, excepting anal and cubital, heavy, brown, 

 radial cell short, closed, vein at base slightly arcuate, areolet absent, 

 veins on two sides and basal abscissa of cubitus scarcely visible. 

 Length 3.5 mm. 



Bred from galls of Cynips nuilti punctata on Quercus lobata. 

 Habitat. Stevens- Creek Canyon, above Cupertino, Cal. 

 (R. W. Patterson.) 



