404 
Indian Ticks 
APONOMMA GERVAISI, Lucas. 
(Figs. 9 and 10.) 
The examination of a large number of ticks taken from reptiles, 
especially in India, has convinced me that two forms which are at least 
entitled to rank as distinct varieties have been confounded under the 
name of Aponomma gervaisi. Both occur quite commonly, so that it is 
exceedingly unlikely that either is absent from any considerable collection, 
and they are sufficiently similar in facies, especially in ill-marked 
specimens, to make their confusion probable. On close examination, 
however, they seem to be quite separable, and I have come across no 
individuals which are not clearly attributable to one form or the other. 
Neumann’s de.scription' would apply fairly well to either form, so that 
it is not, perhaps, easy to decide which should be regarded as the type, 
but on the whole the choice must fall upon the smaller and more 
broad-oval form, especially as it is to this form that specimens in our 
possession, identified by Neumann as A. gervaisi, belopg. For the other 
Fig. 9. Aponomma gervaisi, S . Diagram of contour and metallic patches. 
Pig. 10. Aponomma gervaisi, \&i\ lucasi, <?. Diagram of contour a^d metallic patches. 
and larger form I propose the name A. gervaisi var. lucasi. Before 
giving formal descriptions of the two forms it may b4 useful to point 
out the respects in which they chiefly differ. There will be no difficulty 
in distinguishing well-marked males, for though there is a general 
similarity in the distribution of the metallic blotches they differ 
markedly in one respect. In the type the elongated lateral blotches 
have an enlargement on a level with and external to the cervical 
^ Rev. de la Famille des Ixodides (3), 1899, p. 182. 
