5. Punctations exceptionally rugose, 

 dense; cervical fields markedly- 

 reticulate R. SUPBITRITUS 



Figures 315 and 31b 



Punctations not exceptionally rugose; 



cervical fields mildly or nonreticulate 6 



6. Lateral grooves lacking; scutum slight- 

 ly wider than long; numerous moderate 



size punctations onto lateral ridges R. KO CHI 



Figures 27l"ancr772 



Lateral grooves present and distinct 7 



7. Scutum no longer than or not so long 

 as vrLde; posterior margin blvmtly 

 rounded; nvimerous large punctations; 

 lateral ridges extending to posterior 

 margin, raised, wide, glossy, mostly 



inpunctate R. Ca-jPOSITUS 



Figure's 255 and 2^6 



Scutum longer than vri.de; lateral 



ridges not markedly raised or glossy; 



with some punctations on lateral 



ridges 8 



8. Scutal punctations fairly large, deep, 

 and uniform, dense, evenly distributed 

 between lateral ridges, fewer on lateral 

 ridges and beside lateral grooves; pos- 

 terior margin gradually rotmded, non- 

 sinuous . Large tick R . LONGUS 



Figures 27^ and 230 



Scutal punctations mixed medium to large 

 size; tinevenly but densely distributed 

 and extending onto lateral ridges; pos- 

 terior margin tapering and sinuous. 



Medium size tick R. SULSATUS 



Figures 3ll and 312 



- 5% - 



