40 



MISIC. PUBLICATION 470, U. S. DEPT. OF AGRICULTURE 



states that it is rare, and probably breeds in the twigs of yellow pine, 

 but he (1926) simply gives the host as mesquite. 



The sculpture on the dorsal surface of the body is somewhat 

 variable, some specimens being more densely punctured than others, 

 and the smooth callosities on the pronotum being sometimes absent. 

 Some specimens have the longitudinal costae on the elytra more dis- 

 tinct, and the first costa extending to the base of the elytron. In 

 most females examined the tip of the last visible sternite is trans- 

 versely sinuate, with a broadly rounded median lobe, but in a few 

 specimens it is subtruncate or slightly rounded. The prosternal lobe 

 is also slightly variable in length. Horn (1886) mentions that one 

 specimen before him has the body beneath entirely green, but this 

 specimen was not seen by the writer and may have been erroneously 

 identified. 



This species resembles deserta Horn and the two species are con- 

 fused in most collections. In deleta the form is more subcylinclrical, 

 the longitudinal costae on the elytra are elevated and interrupted by 

 the foveae, and the abdominal sternites have smooth, lateral callosities, 

 whereas in deserta the body is more depressed, the smooth longi- 

 tudinal lines on the elytra are not elevated or interrupted, and the 

 abdominal sternites are without smooth, lateral callosities. 



Chamberlin (1926) gives the type locality as Owens Valley, Calif., 

 but LeConte described the species from a unique female collected by 

 A. Murray, and the holotype is simply labeled "Calif." LeConte 

 does not mention Owens Valley in his description. 



Horn (1886) places subcylindrica Motschulsky as a synonym of 

 deleta and this has been followed by all later authors. The type of 

 subcylindrica has not been seen by the writer and this synonymy 

 must be accepted until the type can be studied. 



(6) Chrysobothkis chambeeuni, new name 

 (Fig. 6 ; fig. Ill, F) 



CJirysobothris calcarata Chamberlin (not Melsheimer), 1938, 

 14 : 12, figs. 9-11 ; Beer, 1940, Pan-Pacific Ent. 16 : 16. 



Pan-Pacific Ent. 



£ 



Figure 6. — Anterior tibia of male (A), clypens (B), and last visible abdominal 

 sternite of male (C) of Chrysobothris chamberlini. 



