168 

 Presence of stridulatory files on occipital region of 



head unknown (heads retracted) . Males with prosternum 



slightly expanded laterally, extend 0.5 distance from apical 



notch of suture to lateral margin of pronotum. 



Variation . The specimens studied show a surprising 

 amount of color pattern variation. 



Mexican (Veracruz) specimens have black legs, red head 

 with black base, small posterior pronotal angle spot, 

 completely black elytral base, central elytral band smooth, 

 apical elytral spot connected to margin, and black elytral 

 epipleural fold. This pattern was illustrated by Gorham 

 (1887) . 



Bolivian specimens have black legs, black head, large 

 posterior pronotal angle spot, solid black elytral base, 

 central elytral black band deeply cut (zig-zag) , apical 

 elytral spot connected to margin, and black elytral 

 epipleural fold. 



The Paraguay specimen has banded femora, red head with 

 black central basal spot, large posterior pronotal angle 

 spot, black basal elytral band broken by pale spots, central 

 elytral band deeply cut almost into stripes, apical elytral 

 spot free, and red elytral epipleural fold. Similar pattern 

 differences indicate separate entities in other taxa and may 

 indicate that this is distinct. The only specimen studied 

 of this color pattern is a female, while dissected specimens 

 of the other color patterns are males, making genitalic 

 comparisons impossible. 



