CRYPTOCEPHALUS IN AMERICA NORTH OF MEXICO H 



with eight rows of punctures, usually two rows at side confused, 

 punctures sometimes finer than usual; ground color of dorsal surface 

 yelloAvish to orange; anterior margin of prosternum in both sexes 

 evenly arcuate. 



Tindus group: implacidus, new species, lateritius Newman, ochraceus Fall, 

 schreibersii Suflfrian, striatulus Leconte, tindus Leconte. 



Pronotal punctures large and deep to longitudinally elongate and 

 producing a furrowed appearance; punctures at elytral apex 

 sometimes regular, but most often confused; elytral color pattern, 

 when present, consisting of three dark, transverse, indistinct, undulate 

 bands; usually with nine rows of small distinct punctures, sometimes 

 none confused, sometimes with two or three rows at side confused; 

 anterior margin of prosternum of male usually lobed, often lobed 

 and pointed, that of female evenly arcuate to somewhat lobed; 

 small to moderate in size. 



There may be a relationship between inserius of the calidiLS group 

 and the members of this group. 



Arizonensis group: arizonensis Schaeffer, nanus Fabricius, sanguinicollis 

 Suffrian, palUdicindus Fall. 



Pronotum red or orange (except black in sanguinicollis nigerrimus 

 Crotch) and elytra usually black, sometimes very dark with bluish 

 or greenish luster and occasionally with basal portion of elytra at side 

 yellowish or lighter than remainder; elytra with seven, eight, or nine 

 rows of punctures, often with rows six and seven confused; anterior 

 margin of prosternum of male produced into a lobe, that of female 

 more or less produced. 



I have seen no specimens of pallidicinctus, but by its description it 

 is clearly a member of this group. 



Amatus group: amatus Haldeman, mcrus Fall. 



Basic elytral pattern consisting of dark markings on sutural, first, 

 thu-d, and fifth to last intervals; pronotum predominantly dark, 

 usually with a median and two lateral, longitudinal dark markings, 

 lateral and apical margins narrowly lighter; with eight rows of fine, 

 distinct punctures, two or three rows at side confused or entwined; 

 male with anterior margin of prosternum lobed and with a short, 

 sharp, vertical spine just behind anterior margin or nearly half way 

 back on prosternum, female with anterior margin lobed but with no 

 spine; size moderate. 



Fall (1932, p. 23) described the prosternal spme of menis as a 

 unique structure; in comparison with amatus the spine is unique 

 only in its position. 



