CRYPTOCEPHALUS IN AMERICA NORTH OF MEXICO 43 



Prosternum: Anterior margin of prosternum in female produced 

 into a distinct, ventrally directed, pointed lobe. 



Length: 5.5 to 6.0 mm. 



Discussion.— A single female paratype of this species is in the 

 U.S. National Museum; the data is Lebec, California, VIII-1-36, 



B. E. White collector, Chrysothamnus nauseous moliavensis (Chryso- 

 thumnus nausesous mohavensis Hall). Another female paratype 

 with the same data as above and from the B. E. White collection has 

 been examined. 



C. c. cerium is very similar to the description and illustration of 



C. inconspicuus Jacoby (1880, p. 56). A specimen determined as the 

 latter by Monros (and which agrees well with its description and 

 illustration) differs from c. cerinus in that it is more orange; c. cerinus 

 is more creamy yellow. There is a possibility that the two may be 

 synonymous. 



One specimen is recorded from greasewood leaves and another from 

 Covillea tridentata Vail. 



Distribution. — The four specimens examined are from California, 

 Nevada, and Texas. 



Cryptocephalus cerinus nevadcnsis B. E. White 



FiGURK 89 



Cryptocephalus cerinus nevadensis B. E. White, 1937, p. 113. 



Pronotum : Light orange in most areas with darker orange speckling ; 

 with vague reddish markings at center of disk and basally on each 

 side; coloring lightest in two vague oblique basal spots, at sides, and 

 at apex. Punctation dual, larger punctures small, fine, and sparse, 

 smaller punctures minute, moderate in density. 



Elytra: Background color light orange, vittae brown to black. Each 

 elytron with three vittae as follows: on second interval, indistinct 

 apically; on fourth interval, sometimes indistinct basally; on sixth 

 interval. With seven rows of even, distinct punctures and a short 

 series beliind humerus, punctures distinct and dense, finer to apex as 

 usual; inner and outer rows distinct at apex and nearly or quite meet- 

 ing. 



Prosternum: Anterior margin in male produced ventrally into a 

 pointed lobe, in female produced ventrally into a broad, not distiactly 

 pointed lobe. 



Length: 5.0 to 6.3 mm. 



Discussion. — I have seen only the holotype and allotype of this 

 subspecies. Though they are superficially very similar to c. conHuentus, 

 they have the form and symmetry of c. cerinus. In the latter and c. 



