1930 ] 
Notes on Hippoboscidae 
313 
this upper vertical plate is much more extensive, being 
over half the length of the medio-vertex, sometimes occu- 
pying nearly half of the vertex; it is rather semi-elliptical 
and only a little wider at the occiput than long on the 
middle line. Unfortunately I have seen several specimens 
of H. capensis which in the shape of the vertex do not 
appreciably differ from H. equina. Nevertheless, this char- 
acter may be of specific value, even though its variability 
prevents its being used in a key. 
The color peculiarities of the scutellum and of the vena- 
tion, which have been generally used as specific characters, 
I have found to be extremely variable and wholly unreliable 
in these two species. I have seen specimens of H. equina 
colored almost exactly like H. capensis, and I am certain 
that the two have often been confused in collections. 
2. Hippobosca capensis v. Olfers 
Hippobosca capensis v. Olfers, 1816, “De Vegetativis et 
Animatis Corporibus in Corpor. Anim. Reper. Comm.,” 
I, p. 101 (not seen) . 
Hippobosca francilloni Leach, 1817, “Gen. Spec. Eprobosci. 
Ins.,” p. 8, PI. XXVI, figs. 8-10 (no sex given; with- 
out locality). Theobald, 1906, 2d Rept. Wellcome Res. 
Lab. Khartoum, p. 92, figs. 51 and 53C; PI. X, fig. 
1 ( 2 ). 
Hippobosca orientalis Macquart, 1842, Mem. Soc. Sci. Lille, 
p. 432, PI. XXXVI, fig. 6; 1843, “Dipt. Exot.” II, 3, 
p. 275, PL XXXVI, fig. 6 [called Hippobosca laticornis 
in the Explanation of Plates, p. 294] (no sex given; 
East Indies). 
Ornithomyia chinensis Giglioli, 1864, Quart. Jl. Micr. Sci., 
N. S., IV, p. 23, PI. IB, figs. 10 and 11 (no sex given; 
China; supposedly off T urdus ob scums ) . 
Hippobosca canina Rondani, 1878, Ann. Mus. Civ. Genova, 
XII, p. 164 (no sex given; Italy, Southern Europe, 
Persia, South and East Africa). 
