Kinsey: Studies of Cynipidie 



49 



Adults emerged from the Placerville material at some date 

 after March 30, 1920. 



Compsodryoxeniis brunneus variety atrior, new variety 



P'EMALE. — Differs from the female of the other variety as follows.- 

 Head darker brownish rufous ; thorax dark brownish rufous, very dark 

 laterally; anterior parallel lines very fine, in part not evident; abdomen 

 dark brownish rufous basally, largely very dark brown black; legs almost 

 wholly brown, fiont legs lighter, all tarsi yellow brown, middle and 

 hind tibi^ very dark brown black; shading on wings darker brown, 

 much more extensive, extending well beyond the veins. 



GALL. — None, or a slight swelling; the larval cells embedded in 

 the wood; quite as in the other variety. On Quercus loba.ta. 



RANGE. — California: Byron. Probably occurs thruout the range 

 of Quercus lobata (and not improbably Q. Douglasii) . 



TYPES. — 23 females, 2 infested stems. Holotype females, paratype 

 females, at The American Museum of Natural History; parat^^e fe- 

 males and galls with the author; paratype females at Stanford Uni- 

 versity, the Museum of Comparative Zoology, the Philadelphia Academy, 

 and the U.S. National Museum. Labelled Byron, California; March 19, 

 1920; Q. lobata; Kinsey collector. 



The adults emerged at some time after collecting near 

 Byron on March 19, 1920. The infestation is not to be dis- 

 covered except by widespread, haphazard cutting into young 

 twigs. 



Conipsodryoxenus pattersoni, new species 



FEMALE. — Head and thorax yellow rufous, abdomen largely black; 

 antennas with 13 segments; thorax shagreened, rugose on the scutellum; 

 parapsidal grooves not continuous to the pronotum; length about 1.-5 mm, 

 HEAD: As wide or v/ider than the thorax, distinctly widened behind 

 the eyes; yellow rufous, the tips of the mandibles darker; finely rugoso- 

 punctate to coriaceous on the front, finely rugose on the lower part of 

 the face, practically naked of hairs. Antennae brownish black, the first 

 four or five segments yellow rufous; pubescent; with 13 seg-ments, the 

 third segment hardly at all longer than the fourth, the last almost twice 

 as long as the preceding. THORAX: Mostly bright yellow or brownish 

 rufous; mesonotum regularly shagreened, practically naked of hairs; 

 parapsidal grooves distinct posteriorly, less so anteriorly, hardly reach- 

 ing the pronotum, not diverging greatly anteriorly; median groove ab- 

 sent; anterior parallel lines barely indicated for half the mesonotal 

 length; lateral lines fine, but distinct, smooth, diverging posteriorly; 

 scutellum, darker rufous, sometimes almost black on the edges, rather 

 finely but deeply rugose, naked of hairs, with two fove« indicated in the 

 longitudinally furrowed depression at the base; pronotum rufous, rough 

 and shagreened at the sides ; mesopleur^ darker rufous to black, roughly 

 shagreened, with some shallow, irregular furrows. ABDOMEN: Black, 

 rufo-piceous ventrally and on the hj-popygium; entirely naked of hairs; 



4—21784 



