On the Tropical Fowl Mite in Australia. 243 
length 8:6; palatal foramina 4:5; upper molar series 3:1 ; 
length of m* 17. 
Hab. (of type). Chirinda Forest, Melsetter, Rhodesia. 
Other specimens from Mazoe, Mashonaland (J. 7. Darling), 
and Legogot, Barberton, Transvaal (feudd Exploration). 
Type. Adult male. B.M. no. 8.7.19.39. Collected and 
presented by C. F. M. Swynnerton, Esq. 
Four specimens of D. nigrifrons from 8. Africa agree in 
their strongly buffy undersides in contrast with the greyish 
or only faintly buffy colour found in Hast-African and 
Nigerian specimens of J). nigrifrons. Heller has distin- 
guished a D. spectabilis (locality Lado) from the Kilima-njaro 
D. nigrifrons, because of its “pearl-grey”’ and not buffy 
underparts. But all our Hast-African specimens are more 
or less greyish below, and the type was said to have the 
“underparts white, tinged with yellowish brown.” No 
white of any shade occurs on the Rhodesian form. 
XXVIT.—On the Occurrence of the Tropical Fowl Mite 
(Liponyssus bursa, Berlese) in Australia, and a new 
Instance of its attacking Man. By Srantey Hirst. 
(Published by permission of the Trustees of the British Museum.) 
In a little paper entitled “On a widely distributed Gamasid 
Mite (Leiognathus morsitans, sp. n.), parasitic on the 
Domestic Fowl” *, I described a blood-sucking mite found 
on the fowl in several parts of Africa, the Comoro Islands, 
Mauritius, China, India, the Bahamas, and Columbia. Two 
instances of this mite attacking Man are given in the paper 
just mentioned. 
Judging from its distribution, I have come to the conclusion 
that this species is the same as that described by Prof. Antonio 
Berlese under the name Leiognathus bursa from specimens 
collected at Buenos Aires. Mr. I. W. Urich, Government 
Entomologist at Trinidad, has recently sent specimens of 
this mite found on the domestic fowl in that island to the 
Imperial Bureau of Entomology. The British Museum has 
just received specimens from Dr. J. Burton Cleland found 
swarming on a sitting-hen at Sydney, Australia (ii. 1916). 
* Bull, Ent. Res. vi. pp. 55-58, 3 text-figs, (1915). 
