66 U.S. NATIONAL MUSEUM BULLETIN 29 



even or with rows six or seven somewhat irregular; rows of punctures 

 very feeble to nearly disappearing at apex ; punctures small and sparse ; 

 inner and outer rows of punctures at apex not clearly meeting. 



Ventral surface: Ventral surface and legs black, tarsi dark brown. 

 Prosternum in male with anterior margin produced backward into a 

 distinct, pointed process, or prosternum in female with median area 

 between coxae somewhat produced into a longitudinal carina. Fifth 

 abdominal segment of female with a deep, oval depression at center, 

 or in male somewhat depressed. 



Length: 4.7 to 5.4 mm. 



Type data. — This description is from four individuals, all taken at 

 Chisos Mountains, Texas, by D. J. and J. N. KnuU. The holotype, a 

 male taken on June 26, 1961, the allotype, taken on July 8, 1955, and 

 one male paratype, same data as allotype, are in the OSU collection. 

 One male paratype, taken June 26, 1961, is in the USNM collection. 



Discussion. — This species is most similar to mucoreus L. The two can 

 best be distinguished by the extent of the basal reddish spot of the 

 elytra. In mucoreus, the spot broadly attains the suture at the center 

 and at the side extends past the middle of the elytra; in lunatus, this 

 spot does not or just feebly attains the suture and at the side extends to 

 but not past the middle of the elytra. The specific name lunatus refers 

 to the crescent-like red elytral spot. 



Cryptocephalus luteoliis Newman 



Figure 66 



Cryptocephalus luteolus Newman, 1840, p. 250. 

 Cnjptocephalus sanfordi Blatchley, 1913, p. 23. 

 Cryptocephalus sanfordensis Blatchley, Clavareau, 1913, p. 182 [emendation]. 



Pronotum: Light red, with vague indication of lighter, paired, 

 oblique, basal spots; surface sculpture dual, larger punctures minute. 



Elytra : Creamy yellow with punctures and three incomplete vittae 

 dark brown. Each elytron with dark markings as follows: at basal 

 half and apical tip of second interval, at basal two-thirds and apical 

 tip of fourth interval, from humerus to before middle of sixth interval, 

 on sixth interval behind middle laterally to seventh stria, and at apex 

 of sixth interval; dark markings on intervals sharply delimited by 

 striae. With seven rows of punctures and a short series behind hum- 

 erus, no striae confused, fifth stria sinuate; punctures a little larger 

 than usual and as dense, finer apically as usual; inner and outer rows 

 distinct and clearly meeting at apex. 



Prosternum: Male with anterior margin produced ventrally into a 

 fairly distinct lobe; female not seen. 



Length: 2.8 mm. 



