352 Annals Entomological Society of America [Vol. IV, 



Andricus quercus-flocci (Wal 



mps quercus lana, A. Fitch. 5th Rep. Ins. X. York i 1859), p. 34. 



? Cvnips quercus lanae, i a, Proi En1 Soc. Philad., vol. 1 (1861), 



p. 62. 



Cvnips quercus flocci, B. D. Walsh, Proc. Ent. Soc. Philad., vol. 2 (1864), 

 p. 482. 



Cvnips (Amlricus) flocci listen Sacken, Proc. Ent. Sue Philad., vi 1. 1 (1865), 

 p. 352 



Andricus Socci, G. Mayr, Gen. d. Cynip. (1881), p. 28. 



? Andricus lana, Ashmead, Tr. Am. Ent. Soc, vol. 12 (1885), p. 295. 



Female. Black, ocelli, antennas, legs distally from the coxa', 

 teguhe and ovipositor sheath brownish. Head reticulately ru 

 shining, face with whitish pubescence, antennas 13-segmented, 3rd 

 ien1 longest, not as long as 1 and 2 together and only a little longer 

 than 4th, following segments progn horter except last, which is 



one and one-half times the length of penultimate, distal segments 

 fuscous. Pronotum narrow in the middle, rugose and pubescent, 

 mesonotum smooth and shining, or more or less shagreened, ; arapsidal 



es deeply impressed, complete, the median longitudinal lines 

 reaching more than half-way to posterior margin, smooth lines over 

 base of wings distinct and reaching anterior margin, pleura aciculate, 

 scutellum rugose, slightly pubescent, basal foveas large, shallow, with 

 smooth bottom, approximate. Abdomen smooth, shining, greatly 

 compressed apically, 2nd segment occupying more than half its length, 



cent at base, 3rd and follow in ventral valve 



perpendicular, reaching tergal line, ovipositor exserted and curving 

 upward, ovipositor sheath pale, pubescent. Wings hyaline, pubescent, 

 veins brown, radial cell long, open at the margin, vein at bast arcuate, 

 areolet small, cubitus not reaching basal vein. Length 2.25 mm. 



Gall. A mass of twenty or mon , brown, elliptical or loaf- 



shaped galls, 2mm. high and 1 mm. in diameter, on under side of leaves 

 of Quercus lobata, covered with reddish or yellowish wool. Monothal- 

 amous. 



Habitat. Palo Alto, Cal. (Miss Bertha Wiltz.) 



Andricus pattersonas n. 



Female. Very similar to A. kingi, from which it can scarcely be 

 separated, excepl on the character of the gall. Some of the specimens 

 have the abdomen dorsally and the antenna: distally from 9th segment 

 more or less blackish, and dorsal and subdorsal vittas on mesonotum 

 concurrent with the median longitudinal lines and smooth lines over 

 base of wings. 



Gall (PI. XXIII, fig. 3). Thin, flat, disc-shaped galls from leaves 

 (presumably) of Quercus douglasi, about 6 mm. in diameter, greenish 

 gray with lilac center, the margin irregular; upper surface a trifle 

 wrinkled but otherwise smooth. 



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



