1911] CynipidcB of California 377 



Rhodites bicolor (W. Harr.) 



Cvnips bicolor, T. W. Harris, Treat. Ins. N. Engl. (1842), p. 399. 

 Rhodites bicolor, Osten-Sacken, Proc. Ent. Soc. Philad., vol. 2 (1S62), p. 

 43. 48. 



Rhodites spinosellus, Cockerell. Entomol., vol. 23 (1S90), p. 7.Y 



Female. Black, tips of mandibles, palpi, ocelli, legs (except coxae, 

 trochanters and tips of tarsi), tegula? and abdomen reddish brown. 

 Head faintly punctate on occiput, vertex and front to insertion of 

 antenna?, face and gena? coarsely punctate and clothed with silvery 

 pubescence, antenna; 14-segmented, 1st and 2nd segments stout, 2nd 

 globose, 3rd segment longest, much longer than 4th and nearly twice as 

 long as 1 and 2 together, succeeding segments to 9th progressively 

 shorter, 9th and following segments subequal, except the last, which 

 is much longer than penultimate; all the segments rather thick. Prono- 

 tum narrow in the middle, punctate and pubescent, mesonotum elevated, 

 rugoso-punctate, faintly pubescent, parapsidal grooves reaching more 

 than half-way to anterior margin, median groove from posterior margin 

 shorter, not extending beyond the middle, median longitudinal lines 

 and smooth lines over base of wings distinct, mesopleura rugose and 

 faintly pubescent, smooth, bare patches in the middle and beneath, 

 scutellum deeply rugose, basal fovea? wanting, sharp declivity on either 

 side at base smooth and shining, metanotum rugose and pubescent. 

 Abdomen compressed, smooth and shining, 2nd tergite reaching half- wax- 

 to apex, 3rd and following tergites fairly wide, valves touched with 

 black. Wings subhyalinc, pubescent, iridescent, veins brownish, radial 

 cell short, closed, vein at base angulatc, arcolct distinct, cubitus reaching 

 basal vein. Length 5 mm. 



Male. Similar to female but antenna 1 and abdomen piceous black, 

 legs more or less fuscous, wings hyaline, nervures black. 



Gall. Spiny galls occurring in clusters on the wild rose (Rosa 

 calif omica) \ yellowish brown, body spherical, the spines as long as or 

 longer, sometimes shorter than the diameter of the body. Monothal- 

 amous. 



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

 Patterson.) 



Rhodites politus Ashm. 



Rhodites polita, Ashmead, Bull. 1, Colo. Biol. Assoc. (1890), p. 14. 38. 

 Rhodites politus, Beutenmuller, Bull. Am. Mus. Nat. Hist., vol. 23 (1907). 

 P. 644. 



Female. Black, the legs reddish brown outwardly from base of 

 femora. Head faintly punctate, face pubescent, antennas 14-segmented, 

 filiform, 3rd segment longest, nearly twice as long as 4th or 1 and 2 

 together, following segments progressively shorter, except the last, 

 which is nearly twice penultimate. Pronotum narrow in the middle, 

 closely punctate and pubescent, mesonotum sparsely and shallowly 

 punctate, each puncture bearing a short hair, parapsidal grooves com- 

 plete, median longitudinal lines rather short, mesopleura finely rugoso- 

 punctate, the disc bare and highly polished, scutellum rugoso-punctate 



