70 



hidiana University Studies 



A part of the material from Pullman, Washington, matches 

 this Utah material very closely, but until I can examine fur- 

 ther collections I should hesitate to state that the range 

 extends into Washington. Beutenmuller's 1907 description of 

 utahensis was made from this Washington material, which is 

 at least in part another variety, diver gens. 



Diplolepis radiciim variety plana, new variety 



FEMALE. — Shows the following- characters in addition to those 

 common to all varieties of the species: First two segments of the an- 

 tennae bright piceo-rutous ; mesonotum obscurely punctate; parapsidal 

 grooves not as broad posteriorly as in utahensis, only gradually con- 

 vergent posteriorly, wide apart at the scutellum; median groove dis- 

 continuously evident for half the mesonotal length; anterior parallel 

 lines fine, raised, distinct, especially posteriorly; scutellum broader than 

 in utahensis, median raised region broader anteriorly; second segment 

 of the abdomen covering hardly more than one half the area (at least 

 in the available material) ; abdomen somewhat more elongate than in 

 utahensis; legs, especially the femora, much darker piceo-brown than in 

 utahensis; areolet large or very large; first abscissa of the radius slightly 

 heavier than in utahensis. 



MALE. — Not available for description, 



GALL. — Does not differ particularly from the galls of other va- 

 rieties; averaging large. 



RANGE. — Oregon : La Grande. Probably confined to an area in 

 Oregon and Idaho east of the highest elevations in Oregon. 



TYPES. — 3 females, 3 galls. Holotype female, paratype gall at 

 The American Museum of Natural History; paratype adults and galls 

 with the author. Laballed La Grande, Oregon; April 12, 1920; Kinsey 

 collector. 



Except for three females, the insects had all emerged be- 

 fore collection on April 12, 1920. 



This insect is closely related to utahensis and divergens', 

 it ranges between those two varieties but is the most distinct 

 of the three. 



Diplolepis radicum variety divergens, new variety 



Rhodites utahensis Beutenmuller, 1907 (in large part). Bull. Amer. Mus. 

 Nat. Hist., XXIII, p. 649 (and pi. XLVII, fig. 6?). 



FEMALE. — Shows the following characters in addition to those 

 common to all varieties of the species: First two segments of the an- 

 tennae bright piceo-rufous; mesonotum relatively smooth; parapsidal 

 grooves rather broad posteriorly, hardly more than gradually convergent 

 posteriorly, wider apart at the scutellum than in utahensis, not as wide 

 as in jjlana; median groove rather long, more continuous posteriorly; 



