84 PEOCEEDINGS 'OF THE NATIONAL MUSEUM vol. n8 



tlie foliage of chrysolepis in California Kedwood Park on April 22, 

 1922. Partly grown galls may be found from early May on through 

 the summer and it seems probable that the insects do not emerge 

 from them until the second spring. 



ANDRICUS STELLARIS, new species 



Female. — Red, with tip of antenna, vertex, scutellum, propodeum, 

 and tip of abdomen infuscated, face slightly pubescent. Head finely 

 coriaceous; from above as broad as thorax, cheeks scarcely broad- 

 ened behind eyes, occiput not concave ; from in front malar space .35 

 eye without groove, antenna 14-segmented, filiform, lengths as 

 (scape) 9:6:11:8:7:7:0:6:6:5.5:5:5:5:6. Mesonotum finely 

 coriaceous with a few scattered setigerous punctures, shining, parap- 

 sidal grooves deep, narrow, smooth, percurrent, no median. Scutel- 

 lum with two large smooth pits at base, disk rugose, its sides 

 bounded by diverging lines. Carinae on propodeum diverging 

 below on to sides of the rugose neck. Hind tarsus shorter than 

 tibia, tarsal claws with a tooth. Wing hyaline, pubescent, ciliate, 

 veins very pale, cubitus and areolet scarcely visible. Abdomen 

 length to height to width as 62 : 55 : 33, lengths of tergites along dor- 

 sal margin as 50 : 15, ventral valves oblique, ventral spine slender, 

 7 times as long as broad in side view. Using width of head as a 

 base the length of mesonotum ratio is 1.4, antenna 2.8, ovipositor 

 4.3, wung 4.6. Length 1.6-1.85 mm. Average of 7 specimens, 

 1.74 mm. 



Type. — Cat. No. 27215, U.S.N.M. Type and 2 paratypes. Para- 

 types in American Museum, Field and Stanford. 



Host. — Quercus garryana. 



Gall (fig. 46). — ^A hemispherical gall, 3-4 mm in diameter and 2 

 mm. high, covered with short, blunt crystalline protuberances with a 

 circle of 12-15 longer, broad and flat projections at the base re- 

 sembling an open specimen of a many-rayed species of the fungus 

 Geaster^ attached singly or scattered in small numbers on the under 

 side of the leaf in the fall. The galls are yellowish-white, often 

 tinged with red. The larval cell lies transversely in the very base 

 of the gall and above it is a cavity above which the crystalline wall 

 of the upper part of the gall is very thick. 



Habitat. — The type material was collected September 8, 1922. in 

 Sequoia National Park, Calif., just above the Cedar Creek checking 

 station on the Giant Forest road. The flies were cut out of the galls 

 the next spring, having died inside, unable to chew their way out 

 of the hard preserved galls. Koebele collected galls in Sonoma 

 County. 



