rnOCEEDIXGS OF THE NATIONAL MUSEIW. 11<) 



10. ANDRICUS WISLICENI, new species. 



Gdll. — .V suuill, (ilobiiliir gull, with a .slight projection at base where 

 it is attached to the twig; it varies in color from a yellow brown to 

 (lark brown, and some are mottled with i^nrple and brown. It is hard, 

 and contains in the center a small larval cell; diameter, 3 to 4 mm. 



(Jalljhj. — Female. Length, 3 to 3.4 mm. Pale brownish yellow, 

 almost devoid of i)ubescence, the abdomen polished and discolored 

 with brown, eyes dark brown, the mandibles black. 



Head and thorax finely ])nnctate, shining; in front of the anterior 

 ocellus is a deep transverse fovea, and there are some coarse scat- 

 tered punctures on the mesonotum. Antenna' 14 jointed, the third 

 joint about one-fourth longer than the fourth, the Joints, from seventh 

 to apex, short, about twice as long as wide, dusky, and delicately 

 fluted. Parapsidal grooves distinct, the groove on the shoulders very 

 long, distinct, and a little b«'nt anteriorly. Scutellum cushion-shaped, 

 rugose, the foveas at base hirge and distinct, separated only by a 

 slight carina; pleura smooth, l)ut under a high power, showing iaint 

 delicate striip. AVings hyaline, the pubescence short, veins, except the 

 submarginal vein from the portion extending from the basal vein to 

 apex, and the angulated cross vein at base of marginal cell, which are 

 brownish or piceous, yellowish. 



Typc—^o. 30G5, U.S.KM. 



Nine female specimens, reared October 14, ISSO, from the galls sent to 

 the National Museum by ]\rr. Albert Koebele, collected in Sacramento 

 County, California, on (^uercus nihlieeni. 



11. ANDRICUS CHRYSOLEPIDIS, new species. 



Gall. — A very hard, ovate, or globular gall, with a nii)|ile at apex 

 and a centrally embedded larval cell; exterimlly it is covered with a 

 dense, tine, short pul>escence like the pubescence on a peach, although 

 sometimes this is rubbed off. Diameter, 5 to 8 mm. 



GaUfiii. — Female. Length, 3 to 5 mm. Eeddish brown, antenna) 

 and legs brownish yellow, eyes and abdomen dark, reddish brown. 



Head and thorax closely punctate, sparsely pubescent. Antenna; 

 14-Joiuted, very slightly thickened at tips. The thorax, besides the 

 two parapsidal grooves which are obsolete anteriorly, has a median 

 groove extending anteriorly for more than half the length of the meso- 

 notum, two short median grooves anteriorly on each side of this, and 

 the usual groove on the shoulders. Scutellum cushion-shaiied, rugose, 

 the fovea' distinct; j)leura finely, minutely rugose, slightly striated at 

 base. Abdomen polished, the short apical segments under a high ])ower 

 show a fine, delicate punctuation, while the ventral valve projects but 

 slightly. Wings glassy hyaline, veins yellowish, arcolet sniall: luMther 

 the a])ex of the submarginal nor the radial vein reach the margin. 



TijiHs.—^o. 30G0, U.S.N.M. 



