District, this tampan appears to be more uniformly distributed 

 than elsewhere. These details, however, await confirmation. 



Outward from the Somali District the eyeless tampan normally 

 inhabits dry structures in savannah areas, especially those with 

 sandy or sandy clay soils with light woods. Riparian forests 

 through grasslands, dense forests, and areas of heavy rainfeill 

 are usually free of the tick, although exceptional human cult ice 

 patterns sometimes allow important foci to develop in dry habi- 

 tats in these situations. Such details have been described most 

 vividly by workers in the Belgieui Congo (Bequaert 1919»193QAj 

 Rodhain 1919A,B,1922A,C; Ghesquiere 1922j Schwetz 1932,1933A,19A2, 

 190; and others), 



0, moubata appears to have spread gradually outward from 

 somewlaat dry areas of East Africa along main paths of human trav- 

 el. Old Arabic slave routes are considered to have been largely 

 responsible for its initial distribution by msun (Dutton and Todd 

 I9O5A; Bequaert 1919,1930Aj. Although especially common along 

 important old and new travel arteries, the tampan is often mark- 

 edly absent a few miles distant. Exceptions do occur. For 

 instance, Koch (1905 ) reported 0, moubata from the Rubafu Moun- 

 tains and elsewhere in villages^away from trade routes in Tanga- 

 nyika, More BJid more exceptions should occur as travel becomes 

 easier eind quicker, tribal customs disintegrate, and labor de- 

 mands call niimerous individuals, with possibly tick-infested 

 personal effects, far from their usual range of activities, 



0, npubata is said to be frequently concealed in sleeping 

 mats, "spare clothing, or baskets and thus may be transferred 

 easily from one area to another. South African authorities blajne 

 the tampan's increasing spread in the Union on migratory laborers 

 from Nyasaland and Portugese territories. In the Belgian Congo 

 it has been found in potato baskets sent to distant markets 

 (Ghesquiere 1922) and is frequently introduced in goods sent from 

 the lowlands to villages at high elevations (Schouteden 1928), 

 This tampan is common in fish baskets of vendors bicycling from 

 Lake Nyasa and Lake Shirwa to villages in other parts of Nyasa- 

 lajid (Hardman 1951). Christy (1903A,B) collected specimens in 

 salt bags being transported between Lake Albert and Tete, 



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