132 Mr. S. Hirst on a Pseudoparasi'ttc Mite 



character, because it is quite constant and is not found in 

 tlie groups Coelaenomenoderiui, Prouiecotliecini, Exotliispini, 

 and Gonopboriui ; tlierelbre, Paradoicnesia cannot come 

 under Gonophoriui 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 tlie 

 apex ; in Paraduwnesia there are more thau ten rows, and 

 they converge towards the ajjex and meet in pairs. (2) In 

 Lepilspa towards the apex, the margins of the elytra have 

 become gently reflexed, a character which is also found in 

 Paradoicnesia. 



Of tlve 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, I am 

 sure, this note would not have been necessary. 



Examining the cotype o'i Paradoicnesia frvhstorferi, Gesti'o, 

 and the type of Letispa godicini, Baly, I find that they are 

 the same species. P. fruJistorferi becomes a synonym of 

 L. godicini. The former has been taken at Tonkin^ and the 

 latter at Shanghai. 



51.- — On the Occurrence of a Pstudoparasitic Mite (Chele- 

 tiella parasitivorax, ]\Jegnin) on the Domestic Cat. By 

 Stanley Hikst. 



(Publislied by perniissiou of the Trustees of the Biitisli Museum.) 

 The mite dealt with in this short note normally lives in the 

 fur of the rabbit and hare. ai;d is said to feed on the n inute 

 Acari {ListropJiorus, etc.) found on these rodents. T^ hilst 

 examining a freshly-killed cat affected with mange, 1 found 

 numerous specimens of Cheletiella parasiticorax on various 

 parts of the body. A few isolated eggs, each fixed to a hair, 

 were also discovered ; they were elongated, resembling the 

 egg of a louse in general appearance, but minute, and with 

 a very delicate cuticle. Presunuil)ly in this case the ChelC" 

 tie/la fed on the Acarus (Xotccdrus cati) which is the cause 

 of the mange, but all the examples of the pseudoj)arasite 

 were found on the body, whereas only the ears and faceweie 

 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 FuUiam 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. 



