13. Posteromedian and paramedian grooves 

 pronounced, deep, and wide*. Inter- 

 stitial punctations varying from faint 

 to large and numerous enoTigh to some- 

 vhat obscure basic pattern of fovir rows 

 of larger punctations. (Common, widely 



distributed in Sudan) R. S. SANGUINEUS 



Figures 289 and 290, 

 293 and 294. 



Posteromedian and paramedian grooves 



indistinct, shallow, or absent H 



H, Adanal shields elongately triangular 

 with rounded marginal junctvtres. Only 

 middle festoon protrudes. Posterior 

 grooves absent, rarely very faintly 

 indicated (but never distinct). Scutum 

 arched; interstitial punctations usual- 

 ly absent or insignificant, rarely more 

 definite but never confusing basic 

 pattern. (Common, widely distributed 



in Sudan) -R. S. SIMUS 



Figures 301 anI7o2 



Adanal shields either distinctly sickle- 

 shaped or with peculiar inner or outer 

 posterior protrusion, (More localized 

 in southern Sudan and less common) 15 



*rhis character is constant in this variable species in all but 

 a very few individuals obviously misformed in several characters. 



- 590- 



