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apically and bear a small pad and claw; the claw curves distad of the apex of the pad.

Females. This sex closely recalls the male and while it is equally as variable it appears to be less frequently confusing with the subspecies muhsami.

The elongate scutum, from one fourth to one third longer than wide, posteriorly tapers gradually to a more or less narrow point. Scutal punctations are much like those of the male, and while they are frequently somewhat larger and less numerous than those of the male they are distinguishable from the consistently large and sparse punctations of muhsami. The cervical grooves gradually converge to the scutal midlength and thence diverge towards the posterolateral margins but do not reach these margins.

The palpal outline is like that of the male except that it is more elongate, the length of segment 3 more nearly equalling that of segment 2 than it does in the male; and the basal spur ventrally is absent or extremely reduced in the form of a bluntly rounded projection. The lateral margin, which as in the male is typically straight or slightly convex, is actually more readily and definitely usable as a diagnostic character because of its greater length; while this margin is very slightly concave in some specimens these are unusual. The basis capituli is definitely wider and shorter than that of the male and bears shorter cornua.

Coxal and tarsal characters are like those of the male; in spite of some variation they are not likely to be confused with most specimens of the related subspecies. [ In considering the female coxal spur as minute and the tarsus as "stout", Nuttall and Warburton (1915) must have been referring to specimens of muhsami

The body form of unengorged females is typically elongate and comparatively narrow, as in males, though the overall size is some what larger. Engorged females may become so large in the latter hours of feeding that superficially they resemble typical boophilid females.

The larvae and nymph of this species, but not definitely refer. able to this subspecies, have been described by Nuttall and Warburton (1915).

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Figures 150 and 151, o, dorsal and ventral views Figures 152 and 153, , dorsal and ventral views

HAEMAPHYSALIS LEACHII MUHSAMI Sudan Specimens from White tailed Mongoose


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(= H. LEACHII INDICA (in Africa) or
H. LEACHII near INDICA of authors).

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Crocidura nyansae toritensis Feb
Atelerix pruneri oweni

Atelerix pruneri oweni

Mellivora capensis abyssinica Jan
Canis mesomelas elgonae

Canis aureus soudanicus

Apr (2)
Civettictis civetta congica Apr
Civettictis civetta congica Feb
Civettictis civetta congica Jun (2)
Civettictis civetta congica

Genetta tigrina aequatorialis Feb
Herpestes sanguineus sanguineus Apr
Ichneumia albicauda albicauda Jan
Ichneumia albicauda albicauda Mar
Ichneumia albicauda albicauda Apr
Ichneumia albicauda albicauda Apr
Felis libyca ugandae

Lepus capensis subsp.

Lepus capensis crawshayi

Rhynchotragus guentheri smithii Dec
Domestic dog

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Bahr El Ghazal: 1208, 499, blacklegged mongoose, GalualNyang Forest, 27 May 1953, E. T. M. Reid legit. 105, same host and collec tor, Yirol, 22 January 1954. 500, Atelerix pruneri oweni, Galual Nyang Forest, 24 February, 1953, H. Hoogstraal legit. To, 19,

Atelerix pruneri oweni, Majan Yom, 2 May 1953, E. T. M. Reid legit. 1200, 600, "small rodent burrowing in termite mound", Waynjok, N. W. Gogrial, April, 1953, W. Dees legit. 19, tiang, Damaliscus korrigum tiang, GalualNyang Forest, April, 1953, E. T. M. Reid Legit. 28, leopard, 36 miles south of Yirol, 18 January, 1953, E. T. M. Reid legit. 10, domestic cat, Galual-Nyang Forest, March 1953, and 499, same host, Wau, October, 1953, both sys.

Blue Nile: 500, 300, "mongoose", Wad Medani, 29 November 1950, D. J. Lewis legit (scc).

Khartoum: legit (SCC).

400", "fox", Khartoum, 9 January 1918, R. Cottam


The subspecies mihs ami occurs in all areas of the Ethiopian Fainal Region, including the mountains of the Yemen in south Western Arabia. We have not seen it in Egypt. The data will be published subsequently in a series of reports on Africa haeme physalids.


The subspecies muhsami is especially common on small carnivores such as mongooses, genets, civets, and wild cats. It seldom attacks wild or domestic canines or wild antelopes. Usually smal ler numbers are found on mole rats, shrews, hedgehogs and hares; the possibility that certain of these may represent separate forms is being studied. Full data will be presented in the report men tioned under DISTRIBUTION above.


This subject requires study, especially in relation to that of the subspecies leachii.




As already indicated, Theiler and the writer have been studying variation in this species for some years and the final report is nearing completion. Recent material sent by Santos Dias to Theiler for identification, and returned with the note that this was typical of what we were provisionally referring to as "H. near indica" pending completion of our studies, was utilized as the type series for the "species muhs ami. These specimens and their description and illustration correspond with what we have been considering as the *H. leachii near indicah of Theiler (1943B). Subsequent Theiler. Santos Dias correspondence, however, indicates that the latter worker considers muhsami as a separate species separate and distinct from "near indica". Recently (November 1955) Dr. J. Bequaert has kindly sent me his paratype specimens of "H. mihsami" and study of these confirms the already mentioned Theiler viewpoint.

Santos Dias (19540) reports a nymph of "H. mihsami" from a tchagra shrike in Mozambique. The likelihood that this is actual ly a specimen of H. hoodi hoodi should be considered.


H. leachii muhsami in some instances intergrades with H. 1. leachli and these specimens may be difficult or impossible Eo separate to subspecies. Criteria for separating this species from others are established in the key and under IDENTIFICATION of H. leachii and in the latter section the characters differen tiating the two subspecies are also noted. Results of a longterm study of this subject will be presented subsequently. Here, only a brief resume of the characters separating H. Leachii muhsami from the nominal subspecies is provided.

Males. These ticks are smaller and their scutal outline is wider than that of the subspecies leachii. Scutal punctations are only moderate in number and are generally fairly large and shallow. In outline, the palpal outlines of the two are quite similar except that the lateral margin of mihsami is slightly concave though in exceptional specimens it may be straight and even more uncommonly it may be very slightly convex. The ventral retrograde spur of palpal segment 3 notably is like that of leachii,

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