In the Galua]— Nyang forest area of Bahr El Ghazal, each of 

 five host specimens examined was infested. In Torit District of 

 Equatoria, a third of the 27 hosts examined yielded specimens of 

 H. houyi . 



DISEASE RELATIONS 

 Unstiidied but potentially important. 



IDENTIFICATION 



The following characters easily distingiiish males among the 

 Sudan haemaphysalid fauna; strong ventral spur on trochanter I; 

 all coxae with distinct spurs; tarsi short, robust, and abruptly 

 tapered; palpi widely expanded basally, without a developed dorsal 

 spur basally, with basal spur ventrally and spur from segment 3 

 ventrally; basis capituli strongly diverging anteriorly and with 

 moderate cornua; dentition k/U', scutum with long, deep lateral 

 grooves enclosing first festoon, and few, scattered, shallow, 

 inconspicuous punctations of mixed sizes; size ranges from an 

 overall length of 1.71 mm. to 2.15 ram. and width of 0.99 mm. 

 to 1.20 mm. 



Females are also easily recognized by the raised spurlike, 

 non- projecting ventral ridge of trochanter I, coxae and tarsi 

 almost exactly like those of male; palpi essentially like those 

 of male but larger and more elongate, basis capituli short, v/ide, 

 and with prominent cornua and anteriorly diverging lateral mar- 

 gins; dentition K/U; scutum only very slightly longer than wide 

 and broadly rounded posteriorly, with few, shallow, scattered 

 pvinctations of various sizes mostly on anterior half. The size 

 is somewhat greater than that of males. 



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