1911] Cynipidce of California 369 



Synergus niger n. sp. 



Female. Black, antennas, ocelli, tips of mandibles, tegula?, legs 

 (except hind coxa? basally), abdomen on ventral and posterior margin, 

 and ovipositor brown, last segment of antenna? fuscous. Head broad, 

 smooth and shining, microscopically reticulate, face radiately striate 

 except in a circular smooth patch above mouth, antenna? 14-segmented, 

 rather stout, ,1st and 2nd segments stouter than those following, 3rd 

 segment longest, longer than 4th but not as long as 1 and 2 together, 

 following segments progressively shorter, except last, which is much 

 longer than penultimate. Thorax smooth and shining, • pronotum 

 broad in the middle, microscopically coriaceo-reticulate, pubescent, 

 mesonotum finely sculptured and punctate, each puncture bearing a 

 hair, parapsidal grooves incomplete, reaching about the middle, median 

 longitudinal groove coextensive, median longitudinal lines extending 

 less than half-way to posterior margin, smooth lines over base of wings 

 distinct, mesopleura smooth and shining, transversely aciculate in middle, 

 pubescent beneath, scutellum deeply rugose, fovea? large, subcircular 

 and shallow, with smooth, shining bottom, contiguous, separated by a 

 carina, metanotum smooth, punctate and pubescent. Abdomen 

 smooth and shining, 2nd tergite extending to apical margin and almost 

 wholly obscuring the following segments, nearly as long as head and 

 thorax together, but not wide, line of the tergum only slightly arcuate, 

 ovipositor sheath exserted. Wings hyaline, pubescent, veins brown, 

 only subcostal, radial and basal nervures distinct, radial cell closed, 

 vein at base slightly arcuate, areolet indistinct or absent, cubitus 

 indistinct. Length 1.75-2 mms. 



Male. Differs in having 15-segmented antenna? and the head 

 brown below base of antenna?, on cheeks and on orbital margin. 



Bred from a bud gall on Quercus lobata. 



Habitat. Stanford University, Cal. (R. W. Patterson.) 



Synergus splendidus n. sp. 

 Female. Reddish brown, the eyes, tips of mandibles, occiput 

 dorsally and front almost to base of antenna? except a narrow orbital 

 margin, antenna? basally, pronotum in the middle, pecten, mesopleura 

 basally, mesonotum, scutellum, metathorax, 1st abdominal segment 

 and dorsal ridge of 2nd tergite basally black. Head broad and thick, 

 eyes bulging, microscopically reticulate, face radiately striate, pubescent, 

 antenna 1 15-segmented, 1st and 2nd segments stout, obconic, touched 

 with black, 3rd segment longest, a little longer than 4th but not as long • 

 as 1 and 2 together, following segments progressively shorter, the last, 

 which is fuscous, not much longer than penultimate. Pronotum wide 

 in the middle, rugose and microscopically coriaceo-reticulate, covered 

 with short appressed hairs, mesonotum rugose and distinctly trans- 

 versely wrinkled, parapsidal grooves complete, median longitudinal 

 lines widely separated and not reaching the middle, smooth lines over 

 base of wings distinct, mesopleura transversely aciculate, pubescent 

 beneath, scutellum rugose, basal fovea? small, oval, smooth at bottom, 



