80 U.S. NATIONAL MUSEUM BULLETIN 290 



Elytra: Dark brown to black; each elytron usually with orange to 

 red markings as follows: a basal spot attaining suture and usually 

 attaining middle of elytron at side, an apical spot, a basal spot often 

 attaining apical spot at side of elytron, light markings infrequently 

 expanded and leaving only anteapical dark spot, or even with elytron 

 entirely light. With nine (sometimes evidently eight) rows of punc- 

 tures, rows five to eight crowded and sometimes confused, rows six 

 and seven usually confused, one or the other often much reduced; 

 punctures as large, dense as usual, finer at elytra! apex; inner and 

 outer rows distinct at apex, usually clearly uniting. 



Prosternum: Anterior margin in male strongly produced into a 

 pointed lobe; anterior margin in female produced into a broad, i)ointed 

 lobe. 



Length: 5.0 to 6.3 mm. 



Discussion. — The two cotypes are in the U.S. National Museum; 

 both bear the data "Huach Mts. VII.29 Ariz." and bear the type 

 number 42411. One is a male, the other a female; I hereby designate 

 the male as lectotype. 



In a single specimen, the light elytral markings are expanded, 

 leaving only a spot of black; in another individual, the elytra are 

 entirely light. These individuals may be deserving of subspecific 

 rank, but the small series on hand (10 individuals) does not provide a 

 reliable indication of the variation in this species. 



A series of specimens in the U.S. National Museum from Mexico 

 and Honduras determined as C. militaris Suffrian is very similar to 

 pubiventris. They differ in that the dorsal surface (except the orange 

 markings) is usually distinctly bluish or greenish, the orange markings 

 at the apex of the elytra are often reduced or absent, and the basal 

 orange spot never attains the apical spot when the latter is present. 



A single specimen from Mexico determined as C. smithi Jacoby is 

 quite similar to pubiventris except that the basal spot does not quite 

 attain the suture. 



Distribution. — The ten specimens I have examined are all from 

 Arizona. 



Cryptocephalus pumilus Ilaldeiuan 



Figure 69 



Cryptocephalus pumilus Haldeman, 1849, p. 249. 

 Cryptocephalus pseudolus Suffrian, 1858, p. 373. 



Pronotum: Dull yellowish to (usually) dull orange, disk usually 

 more or less clouded with light to dark brown; punctation dual, larger 

 punctures moderate to rather large in size, often coarse. 



Elytra: Dull yellowish to (usually) dull orange, humerus more or 

 less dark, often Avith vague to distinct brown markings at middle of 



