336 Annals Entomological Society of America [Vol. IV, 



posteriorly on either side of median line, which is ridged, scutellum 

 rugose. Abdomen as broad as long, much compressed, ovipositor 

 exserted. Wings hyaline, pubescent, veins blackish, radial cell long, open, 

 vein at base slightly angulate, areolet present but two of the enclosing 

 veins indistinct, cubitus not reaching basal vein. Length 1.5 mm. 



Gall. Small, subglobular, 1.25-1.50 mm., pale reddish brown, with 

 a small nipple at either pole; slightly sculptured. 



Habitat. Stockton, Cal. (Hughes Ranch.) 



3 DIPLOLEPIS L. Geoffr. 



Cyn | , I. mill', Syst. Nat. ed. 10 (1758), p. 343. .353. 



I »i] [ol pi (part. . L. Geoffroy, Hist. Ins., vol. 2 1762 p. 309. 

 Dryophanta, A. Forster, Verh. Zool. Ges. Wien, vol. 19 Al.li. (1869), p. 331, 

 334. 335 



Cheeks not more than half the length of the eye. Parapsidal grooves 

 percurrent. Scutellum without foveae, an arcuate transverse groove 

 at base, rarely interrupted in the middle. Metanotal ridges curved. 

 Radial cell open at the margin. Tarsal claws usually bidentate. Abdo- 

 men longer than vertically broad, 2nd tergite produced caudally lingui- 

 form. Head and thorax in agamous generation densely pubescent, 

 antenna; 13-segmented and clothed with long, erect hairs. Body in 

 sexual generation for the most part glabrous, antennas of female 14-scg- 

 mented, without long erect hairs, of male 15-segmented. Mesonotum 

 smooth and shining. Abdomen in male petiolate. In galls on Quercus. 



Diplolepis discus (Bass.) 

 Dryophanta discus. H. F. Bassett, Tr. Am. Ent. Soc, vol. 26 (1900), p. 326. 

 Dipli Dalla Torre and Kieffer, Das Tierreich, lief. 24 Cynip 



1910 . i 362, 



"Head black. Antenna; thirteen jointed, joints one and two rather 

 i, subequal, third long, fourth two-thirds as long as the third, 

 m 1. r gradually all yellowish red. Thorax smooth, 



shining, with a few d hairs and deep parapsidal grooves. Scutel- 



lum slightly rugose. Fovea; not distinct. Abdomen dark, shining 

 brown. Legs dark brown. Wings rather large; veins very pale, almost 

 colorless. Areolet wanting. Cubitus nearly obsolete. Radial area 

 open. Body .06, antenna' .05, wings .07. 



"Galls. Among the galls sent me several years ago by Airs. E. H. 

 King, from Napa City, California, were a few specimens from which no 

 ts appeared, but from which I removed three dead but perfectly 

 developed individuals. The galls were circular, flat, sessile discs growing 

 in clusters on the under sides i if the leaves of some species of oak, closely 

 resembling Q. alba: but I am not sure this oak grows in that section. 

 The galls are hardly one-eighth of an inch in diameter, and except in 

 size and color might be taken for what is, I think, called the 'blue 

 spangle gall,' not uncommon on the white oak in the Atlantic States. 

 H is smaller and lacks the blue color." (H. F. Bassett). 



I have not seen examples of this species. 



