1911] Cynipid® of California 349 



about equal in length to head and thorax together, 2nd segment exten- 

 sive and succeeding segments, which are microscopically punctate, 

 telescoped, occupying only a fourth its length, valves conspicuous. 

 Wings glassy hyaline, pubescent, radial cell open at the margin, areolet 

 large, cubitus not reaching basal vein, vein at base of radial cell arcuate. 

 Length 2. 5-3. 5 mm. 



Gall. Dark greenish or yellowish brown, drupe-like galls, 2 cm. in 

 length and 1 cm. in width, arising from the leaf-buds of Quercus 

 chrysolepis, pointed at apex and with more or less obvious nipple, 

 surface rugose. Apparently monothalamous. The exit hole of the 

 mature insect is at the base. Internally the gall is of a hard, pithy 

 structure, and an elongated, cylindrical canal leads to the large cen- 

 trally imbedded larval cell. These galls are described by Ashmead as 

 smooth and sometimes polished. 



Habitat. Stevens Creek, above Cupertino, Cal. (R. W. 

 Patterson. ) Placer County, California. (Ashmead.) 



Andricus dasydactyli Ashm. 



Andricus dasydactyli, Ashmead, I'm, . U. S. Nat. Mus., vol. 19 (1896), p. 117. 



"Gall. This gall, in structure, is very peculiar, and consists of an 

 oblong or elongated, woody tube, in shape not unlike a date seed; it is 

 two centimeters long by from one-half to three-fourths of a centimeter 

 in diameter, one end being attached sessilly to the branch and covered 

 with long, brownish yellow wool. Internally there is a cylindrical 

 hollow, which, however, does not extend its entire length, 1 icing inter- 

 rupted or stopped up by the small larval cell which is situated near 

 its center. 



"Sometimes three or more of these galls occur close together on the 

 branch, and with their woolly covering present a curious appearance. 

 One of the specimens in the collection is almost globular, but all the 

 others are as described above. 



"Gall-fly. Female. Length 3.8 mm. Clear reddish brown; vertex 

 of head and the extreme tip of abdomen dusky; antennas and legs 

 brownish yellow. Head and thorax minutely, finely punctate, the 

 pleura with fine stria?. Antenna? 14-jointed, rather long, the 3rd joint 

 one-third longer than 4th, the following to 8th gradually shortening, 

 beyond this about equal, the terminal joint being slightly lengthened. 

 The parapsidal grooves are only distinct on the posterior half of the 

 mesonotum, entirely wanting anteriorly; anteriorly extending to about 

 the middle of the mesonotum are two median, glabrous lines ; posteriorly 

 there is a long median grooved line, while the line on the shoulders is 

 distinct; the scutellum is more coarsely rugose at the apex, the basal 

 fovea? large, ovate, oblique, approximate, glabrous at bottom. The 

 abdomen is slightly longer than the head and thorax together and of 

 the usual shape. Wings glassy hyaline, only slightly pubescent, the 

 veins pale yellowish, except the basal nervure and the vein at base of 

 marginal cell, which are brown; this last vein is arcuate but not angulate. 

 The areolet is large and the cubital cell is not quite closed. 



"Type. No. 3063, U. S. N. M. 



