1939] 
Notes on Hippoboscidae 
89 
Additional Specimens Examined. — Morocco : Debdou- 
Taourirt (Ebner) ; Tendrara (Ebner). — Mauretania: Be- 
tween Kiffa and Tidjidja, off camels (Mrs. Mary Steele). — 
Algeria: Biskra (Rothschild and Hartert) ; Ain Sefra 
(Rothschild iand Hartert) ; Touggourt (Rothschild and 
Hartert) ; Oued N§a, Mzab country (Hartert) ; Zahrez 
Gharbi (Zerny). — Tunis: Gabes (Mik) ; Tozeur (G. F. de 
Witte). — Libya: Tripoli (Klaptocz) ; Dernah (Klaptocz) ; 
Bengasi (Klaptocz). — Egypt: Old Cairo, off horse (Effla- 
toun Bey) ; Gebel Elba, S. E. Desert (Tewfik) ; near Pyra- 
mids (Reimoser) . — Palestine : Jericho (P. A. Buxton) ; 
Jerusalem (P. Barraud). — Arabia: Djedda (II. W. 
Whyte) ; Tuwaiq, Riyadh (H. St. J. B. Philby) ; Keshin 
(Hein). — British Somaliland: without more definite lo- 
cality (C. L. Collenette). — Kenya Colony: Lodwar, Tur- 
kana; Marsabit, Rendili Nyoro, N. Frontier District (C. A. 
Neave) ; near mouth of Kallilokwelli River, Lake Rudolf 
(E. B. Worthington). — Anglo-Egyptian Sudan: Khor 
Hanoieit, Port Sudan; Erkowit, Red Sea Hills, biting man 
(J. G. Myers). 
H. camelina is in many respects the most aberrant mem- 
ber of the genus, particularly in the arrangement of the 
scutellar bristles and in the structure of the abdomen, both 
features showing remarkable sexual differences. If few 
specimens were examined, one might be led to think that 
two species are confused under the name camelina. For- 
tunately I was able to study a series of 20 specimens (10 $ 
and 10 $ ) , collected in one locality of British Somaliland, 
removing all doubt in the matter. 
In the male the scutellar bristles are preapical, placed as 
in the other species of the genus. In 14 males examined, 
from 4 localities, their number varies from 11 to 22, with 
the following groupings: 11 bristles: 1; 12b.: 4; 14b.: 2; 
15b. : 4 ; 16b. : 1 ; 17b. : 1 ; 22b. : 1. They are divided into two 
even groups in 6 males, unevenly in 8. In the female the 
bristles are discal, placed near the middle of the scutellum 
and much more spaced. In 17 females, from 6 localities, 
their number varies from 3 to 8, as follows : 3 bristles : 1 ; 
4b.: 6; 5b.: 4; 6b.: 3; 7b.: 2; 8b.: 1. They are evenly di- 
vided in 10 females, unevenly in 7. 
In the female the dorsum of the abdomen is entirely soft 
