CRYPTOCEPHALTJS IN AMERICA NORTH OF MEXICO 45 



Distribution.— The 65 specimens in the USNM collection are 

 from Utah, California, Arizona, New Mexico, Colorado, Nevada, 

 Wyoming, Nebraska, Kansas, Montana, and Alberta, Canada! 

 Blatchley (1924, p. 53) recorded the species from Florida, but this is 

 probably an error. 



Cryptocephalus confluentus melanoscelus, new subspecies 



Figure 98 



General: Body 1.66 to 1.70 times as long as wide; widest behind 

 humeri, somewhat tapering posteriorly; dorsal surfaces shining, with- 

 out pubescence, most of ventral surface with short, sparse, whitish 

 pubescence, most dense (as usual) on metepisternum. 



Head: Creamy yellow, antenna! insertions and labrum reddish to 

 dark, vertex usually (in two of three specimens) light orange; front 

 with moderate-sized punctures, moderate in density; clypeus sharply 

 delimited at sides, less so at base, distinctly broadest apically, noticea- 

 bly concave. Antennae three-fourths length of body in male, or over 

 one-half length of body in female; antennae brown, first segment and 

 apical segments darkest. 



Pronotum: Predominantly light orange and speckled with darker 

 orange but with unspeckled cream yeUow in two oblique spots at base 

 and at lateral and apical margins. Punctation dual, smaller punctures 

 minute and dense, larger punctures very small, not coarse. 



Elytra: Creamy yellow to very light orange, each elytron with black, 

 sharply delimited vittae on intervals two, four, and six; vittae some- 

 times cloudy or not sharply delimited at bases or apices; first vitta 

 joining suture before apical fourth; second and third vittae narrowly 

 joining before apex. Each elytron with seven rows of fine, even punc- 

 tures and a short, sometimes confused series behind humerus; punc- 

 tures distinctly finer apically; inner and outer rows distinct to apex 

 and nearly or quite meeting. 



Ventral surface: Prosternum and mesosternum predominantly yel- 

 lowish; metasternum yellowish at middle, brownish to black at side; 

 metepisternum black. Abdomen mostly clouded brownish, yellowish 

 as follows: at center of first segment; usually at center of segments 

 two and three; entire fifth segment; in lateral spots at side of segments 

 two, three, and four. Legs brownish to black, each lighter or with 

 yellowish on femora above at base and below near apex; tibiae fighter 

 at their bases. Anterior margin of prosternum in male produced yen- 

 trally into a distinct, pointed lobe, in female produced ventrally into 

 a shorter, pointed lobe. Fifth abdominal segment faintly depressed at 

 center in male, with a deep, oval depression at center in female. 

 Pygidium yellowish thi'oughout to brownish at base, distmctly punc- 

 tate, punctures moderate in density and coarseness. 



313-144—68 4 



