CRYPTOCEPHALUS IN AMERICA NORTH OF MEXICO 9 



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

 predominantly dark, usually with two indistinct light basal oblique 

 spots, and lateral and apical marguis vaguely lighter; size medium to 

 large. 



There is a similarity between the elytral pattern of atrofasciatus 

 and that of triundulatus, new species, that may indicate a relation- 

 ship between the members of this and the badius group. 



Badius group: badius Suffrian, cowaniae Schaeffer, conlextus, new species, 

 incertus Olivier, triundulatus, new species. 



Basic elytral pattern like that of triundulatus or badius, often some- 

 what expanded or reduced; pronotum predominantly dark, nearly 

 always with lateral and apical margins yellowish, usually with two 

 yellowish, obhque basal spots; with seven or eight rows of punctures, 

 often with two rows at side confused behind humerus or interrupted 

 and joining one another; anterior margin of prosternum somewhat 

 produced to evenly arcuate in both sexes; moderate in size. 



The elytral pattern of this group appears to me to have been pivotal 

 in the development of the patterns of other groups of species. I find 

 basic similarities that I interpret as indicating a relationship between 

 this group and the following groups: guttulatm, cupressi, calidus (com- 

 pare badius with the male of mutabilis), and trizonaius. 

 Guttulatus group: guttulatellus Schaeffer, guttidatus Olivier. 

 Each elytron with seven light (usually yeUo%\ash) spots on a darker 

 background, spots subequal in size and generally separated by theu- 

 diameters or less, number of complete spots from base to apex is 

 2-2-2-1 (also a partial spot present anteriorly at side); pronotum 

 usually with two vague, oblique, yeUowish spots at base; with seven 

 or eight rows of punctures, rows behind humerus confused or often 

 with adjacent rows interrupted and joining; size smaU to meduim. 



The pattern of this group is, I beheve, clearly a modification of that 

 of the preceding group. Some specimens of covjamae almost exactly 

 match the disposition of the spots at the apical two-thirds of the 

 elytra in the guttulatus group. If the typical pattern of cowanme is 

 modified so that the light basal spots are expanded and the remaining 

 spots enlarged and rounded, the pattern typical of this group results. 

 Cupressi group: binotatus, new species, bivius Newman, castarteus Leconte 

 J^L sZeZ, disruptus, new species, duryi Schaeffer e,.,^u3Schaeffe^^ 

 leuccymelas Suffrian, maccus, new species, pseudomaccus, new species, lexanus 

 Schaeffer, virginiensis, new species. 



Pronotum with four black to red, longitudinal, nearly parallel mark- 

 ings, sometimes running together or eompletely jomed, ■'J'^^'y »^;»"'; 

 Ely ra with basic pattern ot dark markings as oUows: two large o 

 medium discal spots, two usuaUy medium lateral spots, two medium 



