TT 9 
(Eyes flat.— 2. 
1 ' (Eyes prominent. 
(Marginal groove well marked. 3. 
(Marginal groove absent. 
(Dorsal scutum uniformly brown. 4. 
1 Dorsal scutum black and white. K. pulchdlus. 
, Adanal shields not prolonged to a point (posterior border 
straight or convex).- 5. 
* Adanal shields prolonged in one or two points (posterior 
border concave). 12. 
I Posterior border of the body not prolonged nor furnished with 
a caudal prolongation. 6. 
V Posterior border of the body furnished with three 
prolongations. R. supertritus. 
/Adanal shields triangular or subtriangular (internal edge 
straight or slightly concave).—7. 
b- Adanal shields sickle-shaped (their inner border very concave, 
the two others forming a single regular curve).- 
- R. haeniaphysnloid.es. 
(Marginal groove deep, long, commencing near the eyes. S. 
7. \ Marginal groove superficial, short, commencing at the middle 
• of the length of the body. R. ziemanni. 
8 . 
, Dorsal scutum with scattered punctations. 9. 
I Dorsal scutum with numerous, serried, punctations. 
.Dorsal scutum with unequal, very evident, irregularly distri 
buted punctations. — 10. 
Q- Dorsal scutum with large, equal punctations arranged in 
longitudinal lines with or without additional fine and 
hardly visible punctations.- R. simus. 
Coxae I, with or without a short prolongation in front, 
not visible from the dorsal surface.—11. 
Coxae I, with a long anterior prolongation, visible from 
the dorsal surface. -R. appendtculatiis. 
