428 Mr. H. Scott on a large series of Nycteribiide. 
In the study of (C. sykesi and its near allies, an im- 
portant point long remained undecided ; that is, whether 
C. hopei, Westw., and C. sykesi are male and female of 
the same species or not. The former was originally 
described from 2 males from Bengal, the latter from 3 
females from East India,* and Westwood then asserted 
the possibility of their being the same species. The 
characters of the males of the series discussed in this 
paper agree with those of (. hopei as given by Speiser 
(Arch. Naturg. 67. 1 (1901), p. 50 and Text-fig. 20). He 
states that the characteristic feature of C. hopei lies 
in the form of its anal segment and claspers; the former 
being slender, tapering towards the apex, and some 1? 
times to twice as long as it is broad at the base; and 
the latter being especially long and narrow, and slenderly 
pointed. I have since been informed by Dr. Speiser, that 
as a result of his more recent investigations, C. hopei and 
C. sykesi are shown to be certainly the two sexes of a 
single species. 
In the bottle with the Cyclopodia were also a large 
number of mites. Mr. N. D. IT. Pearce, of Christ’s College, 
Cambridge, who has kindly examined these, states that 
they are Dermanysside, of the genus Leiognathus, Canestr. : 
and very closely allied to Z. arcuatus, Berlese (Ac. Myr. 
Scorp. It. 53, 8), which is common on bats, especially on 
V. noctula, The mites are parasitic on the Pteropus 
medius, and are not, except by accident, on the 
Cyclopodia, 
* Westwood, op. cit. 
