Kinsey: Studies of Cynipidas 



125 



to be preoccupied, and substituted bassettianus, as Beuten- 

 muller pointed out in 1907. Unfortunately this is not the 

 only instance of the catalog method which has muddled 

 cynipid taxonomy. Coxii, for instance, has been mentioned 

 in the literature at least fourteen times. In not a single in- 

 stance have any data been given beyond that of the original 

 description. Ashmead's guess (1887), copied by Dalla Torre 

 and Kieffer (1910), that the species occurs on the Calif ornian 

 oak, Quercus agrifolia, is of course wrong. Some museum 

 material from California is labelled coxii; it is suttonii instead. 



Plagiotrichus coxii variety translatus, new variety 



FEMALE. — Differs from the female of variety co:cii as follows: 

 Two basal segments of the antennae bright rufous, brighter than the 

 third and fourth segments; parapsidal grooves not as closely convergent, 

 sometimes considerably further apart at the scutellum; areolet averaging 

 rather large, sometimes considerably larger. 



GALL. — Very similar to the gall of coxii, differing in being more 

 regularly cylindrical, elongate, up to 15. mm. in diameter and 65. mm. 

 long. On Quercus hypoleuca. 



RANGE.— Santa Catalina Mountains (Sabino Trail, 5000-8000 ft.). 

 Probably also occurs on Q. hyiioleuca in the neighboring mountain ranges. 



TYPES. — 18 females, 14 galls. Holotype female, paratype females, 

 and galls at The American Museum of Natural History; paratype fe- 

 males and galls at the U.S. National Museum, Stanford University, and 

 with the author. Labelled Santa Catalina Mountains, Arizona; .January 

 1, 1920; Q. hyi^oleuca; Kinsey collector. 



The majority but not all of the adults had emerged from 

 the type galls before January 1, 1920 ; young galls w^ere de- 

 veloping at the same time. 



This variety is very closely related to coxii, but averages 

 distinct as described; even tho individuals of one variety 

 may vary in regard to a single character toward individuals of 

 the other variety, other characters will be distinct. The host, 

 hypoleuca, occurs in a distinct zone above the altitudes occu- 

 pied by Emoryi. 



Plagiotrichus elongatus, new species 



FEMALE. — Shows the following characters in addition to those 

 common to all species of the genus : Color largely rich rufous and black, 

 in large part dark rufous; apical half of antenna darker or not; meso- 

 notum closely, finely puncto-ru^ose, entirely and rather closely hairy; 

 parapsidal grooves not continuous to the pronotum; median groove very 

 short or wanting; mesopleurae in part or largely puncto-rugose and 



