1939] 
Notes on Hippoboscidae 
85 
Schauensee) ; Windhoek to Gobabis (de Schauensee) ; 
Okahandja (R. E. Turner; J. Ogilvie) ; Otavifontein (K. 
Jordan); Usakos (J. Ogilvie); Hoffnung (K. Jordan). — 
Orange Free State: North Bank Halt, Norvals Poort (J. 
Ogilvie) ; Cotzies’ Farm (W. L. Distant) . — Bechuanaland 
Protectorate: Mongalatsela, Ghanzi, Ngamiland, off horse 
and off steinbok (J. Maurice). — Southern Rhodesia: Vic- 
toria Falls (R. Lowe Thompson). — Northern Rhodesia: 
Lunda, near Congo border (H. S. Evans) . — Portuguese 
West Africa: Benguela, off cattle (W. C. C. Pakes). — Tan- 
ganyika Territory: Mt. Meru, 4,500 to 5,000 ft., off eland (B 
Cooper) ; Ngare Nairobi, W. Kilimanjaro, 5,000 ft. (B. 
Cooper) ; Ngaserai, W. Kilimanjaro, 3,000 ft. (B. Cooper). 
The number of heavy, black preapical bristles of the 
scutellum is quite variable in this species and apparently 
shows no sexual difference. In 95 specimens examined 
(69 2 and 26 $ ), from 14 localities, the total number va- 
ries from 12 to 23, but 82 specimens have from 14 to 20 
bristles. The specimens are distributed as follows : with 12 
bristles: 2 (1 2 , 1 $ ) ; 13b.: 5 (4 2 ,' 1 $ ) ; 14b.: 
10 (8 $ , 2 a ) ; 15b.: 10 (all 2 ) ; 16b.: 7 (6 $ , 1 3 ) ; 
17b.: 17 (13 2 , 4 $ ) ; 18b.: 18 (11 2 , 7 3 ) ; 19b.: 12 
(8 2,4 5 ); 20b. : 8 (4 2 , 4 $); 21b. : 5 (4 2 , 1 3 ) ; 
23b.: 1 ( $ ). 
Most localities are represented by one or a few specimens. 
In a series of 67 specimens taken off cattle at Windsorton, 
Cape Province, the proportion is as follows: with 13b.: 3 
(all 2 ) ; 14b.: 4 (3 2 , 1 3 ) ; 15b.: 9 (all 2 ) ; 16b.: 5 (all 
2 ) ; 17b.: 12 (9 2 , 3 3 ) ;18b.: 15 (10 2 , 5 3 ) ; 19b.: 
8(52,35); 20b.: 5 (2 2,3 5 ); 21b.: 5(42,13); 
22b. : 1 ( $ ) . The bristles are more often unevenly divided 
between both sides (unevenly in 58 specimens, evenly in 
37), the two groups only narrowly divided, so that the row 
is fairly continuous. The uneven groupings observed were 
6 + 7, 7 + 8, 8 + 9, 6 + 8, 7 + 9, 8 + 10, 9 -f 10, 9 + 11, 
10 + 11, 9 + 12, and 11 + 12. 
The structure of the abdomen of H. rufipes is similar to 
that of H. variegata. It is correctly shown for the female by 
Austen (1909, Illustr. African Blood-Suck. Flies, PI. XIII, 
fig. 100). 
The parameres of the male genitalia are straight and 
