132 CTNIPIDOrS a ALLS AND (iALL-WASJ'S—ASHMEAD. vol.xix. 



brown, the cubitus and radius very slender, pale, the vein at base of 

 marginal cell arcuate, the areolet wanting. 

 Ttipr.—yo. ;wsn, U.S.N.M. 



Six female sixM-imens, reared Ai)ril ."», 1.S73. 



3."). CALEIRHYTIS RHIZOXENUS, new species. 



(iaJl. — A large, irregular, more or less globular, tieshy swelling, occur- 

 ring on the roots of an oak in Arizona, and containing numerous larval 

 cells; some galls measure about 1 cm. in length: others are imicli 

 smaller. 



Galljiij. — Female. Length, 3 to 3.4 mui. Head and thorax dark 

 brown or blackish, antenna' and legs pale brown, the posterior femora 

 and tibia' dark brown, or at least obfuscated, abdomen red or brownish 

 red. Head and thorax closely punctate or juinutely rugose, subpubes- 

 cent. Antenuie 14-jointed, filiform. Parapsidal grooves entire, two 

 median lines extending to middle of mesonotum anteriorly, and a verj- 

 distinct groove on the shoulders. Scutellum rugose, the fove;c contin- 

 ent. .Mesopleura punctate, hairy, with a smooth spot posteriorly and 

 an indented line. Abdomen smooth, polished, about as long as the head 

 and thorax combined, with some hairs at sides of second, third, and 

 fourth segments; the second segnumt occu])ics about half the length 

 of the abdomen, and the third and fourth segments about one-half of 

 the remaining portion; the spine of the ventral valve is as long as the 

 first tarsal joint of posterior legs. Wings hyaline, subpubescent, veins 

 brown, the areolet and cubital cell distinct, the basal vein of marginal 

 cell angulated. 



Typc—^o. 3090, U.S.N.M. 



Specimens reared June 24 and 28 and July 6, 1882, from galls received 

 from Mr. H. K. Morrison, collected on roots of a live oak at Fort 

 Grant, Arizona. 



•M\. CALLIRHYTIS LASIUS, new species. 



Gall. — A hemispherical, hard gall, occurring on the ui)per or lower 

 surface of the leaves of Q. chrysolcpis, and covered with a pale, yellow- 

 ish wool, more or less ringed with ferruginous, some being entirely 

 rust-red; it is polythalamous aiul in general appearance not unlike 

 ^1 Jlocci, Walsh, but the larval cells are held closely together, em- 

 bedded in the hard substance com])osing the gall. Diameter from 

 5 to 5) mm. 



<l((llfli/. — I'\'male. Length. 2 to 3.8 mm. I'ale brownish yellow, the 

 ocelli, eyes, and usually, but not always, the abdomen dorsally, brown. 



Head and thorax minutely, conflueutly punctate, pubescent. An 

 tenna* 14 jointed, moderately long and slender, the ti])s dusky and 

 the joints delicately fluted, sparsely covered with white })ile; some- 

 times all but the l)asal joints are dark brown. The parapsidal grooves 

 are delicate but distinct; there is a delicate median groove and 



