As stated in REMARKS above, it is possible that when females of this species are found in the Sudan they will be similar to those described and illustrated herein except that the scutum will be considerably more elongate and narrowly pointed posterior_ ly.

Note: Zumpt (1950A) attributes the name R. distinctus to "Bedford, Fmg. S. Afr., no.ll, 1935, p.6," an error repeated by Santos Dias (1953C). The name R. distinctus was proposed on page 523 of Bedford's (1932B) checklist.

Figures 265 and 266, o, dorsal and ventral views Figures 267 and 268, o, dorsal and ventral views

PLATE LXXV

-641

All Provinces, except Northern Province (King 1926). As noted below, however, Sudan Government collections contain specimens from Shendi, which is on the Nile in the southern part of Northern Province (16°42 N. latitude), but this tick is probably absent from most areas of Northern Province.

Collections containing specimens with the following data have been seen:

Bahr El Ghazal:

Wau (sheep, goats, especially common on horses and donkeys; SVS, HH). Fanjak (sheep and goats; HH). Yirol and Galual Nyang Forest (horses; SVS). Lake Nyubor (cattle; svs). The absence of the red tick on the many wild animals examined in this Province is noteworthy.

Upper Nile: Akobo Post and Melut (mules; SGC). Bor (cattle; SGC). Maban (pigs and goats; SVS). Malakal (donkeys, sheep and cattle; HH; cattle and donkeys; Balfour 1911F).

Blue Nile: Singa (native goat with surago disease; SGC) Wad Medani (horses, donkeys, goats, sheep and cattle; HH, SGC). Roseires (cattle; SGC). Sennar (donkey; SGC).

Darfur: Fasher (goats; SVS). Zalingei (goats and sheep; SVS).

Kordofan: Talodi (mules and sheep; SGC).

Kassala: Abu Gamal (goats; SGC). Kassala (horses, goats, and cattle; SVS).

Khartoum (goats from Meshra, SGC; goats, sheep,
(Introduced into Khartoum on
Balfour 1911F).

Khartoum:

horses, asses, and donkeys, HH). cattle and donkeys from Malakal:

Northern: Shendi (sheep; SGC).

DISTRIBUTION

R. evertsi evertsi is widely distributed throughout the Ethiopian Faunal Region (including the mountains of Yemen, south western Arabia; Hoogstraal, ms.). It is not found in very dry regions of Southwest Africa (Theiler and Robinson 1954) where it is replaced by the banded-legged subspecies mimeticus. The two subspecies do occur together, however, in the savannah of northern Angola and range through the southwestern Congo to the Ubangi savannah near the Sudan border. The typical form is reduced in numbers or is absent in large areas of the Somalilands and in northern Nyasaland, but in these places it is not replaced by the banded-legged variety. It also appears to be absent in areas of West Africa.

WEST AFRICA: NIGERIA (Mettam 1940,1950. Unsworth 1949, 1952. Gambles 1951). TOGO (Ziemann 1905). GOLD COAST (Stewart 1933). FRENCH WEST AFRICA (Girard and Rousselot 1945. Rousselot 1951,1953B).