size, with a scattering of widely separated large punctations among 

 them. Certain populations have fewer punctations that are excep- 

 tionally shallow. Cervical pits are deep but cervical grooves are 

 absent or very short. The central festoon, but not adjacent fes- 

 toons, may be extended in engorged specimens. Basis capituli has 

 prominent lateral angles. Body outline is pear-shaped. Adanal 

 shields are distinctive, as illustrated (Figiore 270; . 



Females ; This sex also lacks a lateral groove and has scutal 

 punctations similar to those of the male, but these punctations 

 may tend to be somewhat larger. The cervical grooves are pro- 

 nounced and gradually converge to the level of the eyes, thence 

 diverge almost to the posterior margin of the scutum. The scutal 

 shape is subcircular, slightly wider than long. 



Note: Some variation is to be expected in specimens refer- 

 able to R. kochi but the significance of such differences is dif- 

 ficult to evaluate at this time. 



The larva and nymph have been briefly described and illus- 

 trated by Rousselot U953B). 



- 659- 



