132 Mr. S. Hirst on a Pseudoparasitic Mite 
character, because it is quite constant and is not found in 
the groups Ceelenomenoderini, Promecothecini, Exothispini, 
and Gonophorini; therefore, Paradownesia cannot come 
under Gonophorini at all. I mention one or two more 
characters to add weight to my conclusion: (1) Each 
elytron of the species of Downesia generally has eight to ten 
rows of punctures, and they run parallel right up to the 
apex; in Paradownesia there are more than ten rows, and 
they converge towards the apex and meet in pairs. (2) In 
Leptispa towards the apex, the margins of the elytra have 
become gently reflexed, a character which is also found in 
Paradownesia. 
Of the eighteen species of Leptispa, Dr. Gestro has 
described only two. ‘This-may show that he has not had 
the occasion to examine many Leptispas, otherwise, | am 
sure, this note would not have been necessary. 
Examining the cotype of Paradownesia fruhstorferi, Gestro, 
and the type of Ledispa godwini, Baly, I find that they are 
the same species. LP. fruhstorferi becomes a synonym of 
L. godwini. The former. has been taken at Tonkin, and the 
latter at Shanghai. 
XI.—On the Occurrence of a Pseudoparasitic Mite (Chele- 
tiella parasitivorax, Mégnin) on the Domestic Cat. By 
STANLEY Hirst. 
(Published by permission of the Trustees of the British Museum.) 
Tue mite dealt with in this short note normally lives in the 
fur of the rabbit and hare, and is said to feed on the minute 
Acari (Listrophorus, ete.) found on these rodents. Whilst 
examining a freshly-killed cat affected with mange, | found 
numerous specimens of Cheletiella parasitivoraz on various 
parts of the body. A few isolated eggs, each fixed toa hair, 
were also discovered ; they were elongated, resembling the 
egg of a louse in general appearance, but minute, and with 
a very delicate cuticle. Presumably in this case the Chele- 
tiella fed on the Acarus (Notedrus cati) which is the cause 
of the mange, but all the examples of the pseudoparasite 
were found on the body, whereas only the ears and face were 
affected by the mange. As this pseudoparasite has not 
previously been found on the cat, I think its occurrence on 
that host worthy of record. The mangy cat on which the 
specimens were discovered was given me by the Superinten- 
dent of the Fulham Cat Shelter, and was not known to have 
come in contact with rabbits. Five other London cats were 
examined, but the Cheletiella did not occur on them. 
