DESCRIPTION OF A NEW FLEA — SKUSE. 
79 
of Curtis, but the absence of eyes, remarkable structure of the 
head, and the elongate thorax in the female, seem to demand its 
exclusion from known genera. 
Not the slightest trace of eyes could be detected in specimens 
of the female, after repeated examinations under a ^in. objective. 
Their rightful position is occupied by a bristly hair. In my 
opinion the female anchors herself by the spiny corona, and is 
perfectly blind. 
Appendix. 
DIPTERA (Flies). 
j Family CEstrid^e (Bot-flies, Breeze-flies). 
Larvae parasitic on various species of mammals, found under 
the skin, in the frontal sinus, or in the stomach. 
Examples : 
CEstrus, Linn. 
(Estrus ovis , Linn., the sheep bot. (Proc. Roy. Soc. Tasm., 
p. 258, 1884). 
Gastrophilus, Brauer . 
Gastrophilus equi , Fabr., the Horse bot. 
Universally distributed. 
Ohs . — Also a species which is said to attack the natives of 
N. Australia (Trans. Aust. Assoc. Ad. Sc., p. 535, 1890). 
Family Oscinid^e. 
Batrachomyia, K r. 
Larvae living beneath the skin of frogs. 
Examples : 
B. nigritarsis , Sk., on Ryla phyllochroa (Proc. Linn. Soc. N.S.W., 
Yol. iv., Ser. 2., p. 175, 1889). Illawarra, New South Wales. 
B. quadrilineata , Sk., on Pseudophryne hibronii ( l.c ., p. 177). 
Burrawang, New South Wales. 
Family Hippoboscid./E. 
(Forest-flies, Horse-tick, Sheep-tick, and Bird-flies). 
Perfect insects, living beneath the hair of mammals or the 
feathers of birds. 
Examples : 
Hippobosca, Linn. 
R. australis , Guer., host unknown (Yoy. de la Coq., ii., p. 302, 
1830). Port Jackson, New South Wales. 
R, viridipes , Walk., host unknown (Trans. Ent. Soc., N.S. iv., 
p. 235, 1857). New South Wales. 
