C. Warburton 
19 
yellowish-white area is much more restricted, being confined to the 
region between the usual position of the lateral lines, and it quite lacks 
the hard enamelled appearance presented by R. pulchellus, in which 
almost the whole of the scutum is of a vivid white. Moreover the 
scutum of R. maculatiis $ is comparatively much shorter and nearly 
circular. Types (of $ ) at British Museum and Cambridge. The type 
cC is in the Berlin Museum. 
R. simus, R. lunulatus and R. glyphis. 
Geheimrath Dbnitz very kindly sent us the type specimen of 
R. glyphis for examination. It is a dry specimen, mounted on a long 
entomological pin, and therefore not easy to examine from all aspects 
but after the closest study I could find no difference between it and 
Fig. 12. R. simus var. lumdatus. Dorsal aspect, spiracle, anal plates (typical), anal 
plates of another specimen. Original, C. W. 
the types of R. lunulatus Neumann in the British Museum. I there¬ 
fore regard R. glyphis Dbnitz, 1910, as a synonym of R. lunulatus. 
But, in the light of numerous fresh specimens in the collections of the 
Entomological Research Committee I am unable to consider R. lunulatus 
as anything more than a variety of R. simus —and that only in the 
somewhat loose sense in which the term is applicable to varieties of 
Rhipicephalus. Now R. lunulatus is in all respects a somewhat small 
R. simus except for its very striking anal plates, but unfortunately these 
grade into each other absolutely, and, moreover, the projections which 
give to the anal plates of R. lunulatus their very distinctive facies are 
2—2 
V 
