Page images
PDF

ERITREA (Tonelli.Ronde1li 1930A. Stella 1940). FRENCH SOMALI. LAND (Neumann 1899,1922. Stella 1938A,l939A). ITALIAN SOMALILAND (Paoli 1916. Stella l938A,l939A,l940). KENYA (Loveridge 1923B, 1936B. Lewis 1932A. Theiler 19451. Heisch 19540). UGANDA (Bruce et a1 1911. Mettam 1932. Theiler 19451). TANGANYIKA (Loveridge I923DS Barbour and Loveridge 1928. Bequaert 1930A. Theiler 1945A .

SOUTHERN AFRICA: ANGOLA (Neumann 1899. Gamble 1914. Santos Dias 19508. Hoogstraal 19540). MOZAMBIQUE (Santos Dias 1947D, l948A,l953A,B. Bacelar 1950. Tendeiro 1951B,F).

NORTHRN RHODESIA (Theiler and Robinson 1954). SOUTHRN RHODESIA (Jack 1942). NYASALAND (Neave 1912. De Meza 1918A. Wilson 1950B).

BECHUANALAND (Theiler 1945A). SOUTHWEST AFRICA (Tromsdorff 1914. Sigwart 1915. Warburton 1922. Theiler 1945A). UNION or sourn AFRICA (Koch 1844. Lewis 1892. Neumann 1899. Howard 1908. As A. ne lectum: Hirst and Hirst 1910. Donitz 1910B. Curson 1928. Be or 1932e,1936. Theiler 1945A).

MADAGASCAR: Neumann (1901). Howard (1908). Poisson (1927 £"§eHT6¥H'(1932B). Bhck (1948A). Millot (1948). Zumpt 1950B). These records appear to be a repetition of Neumann (1901). The presence of this species on Madagascar is questionable (Hoog. straal 1953E)i7

HOSTS

Most investigators list only the lizards Varanus niloticus subspp. and V. exanthematicus subspp. as hosts. These are sometimes called warrener or Ieguan lizards by the British in Africa. References to "iguana" lizards in Africa pertain to Varanus but iguanas are actually New World species.

Other animals may be parasitized occasionally. Records, among mammals, are domestic dogs (Howard 1908, Neumann 1914), pangolin, Manis tricus is (Fain 1949), fruit bat (Hoogstraal 19543), groufi squ1rreI (Villiers 1955), and a larva and nymph from a spiny.tai1ed squirrel, Anomalurus_f. fraseri, in French

[graphic]

Equatorial Africa (CNHM). Reptiles reported to be attacked are crocodile (Schwetz 1927B, Villiers 1955), cobra (Loveridge 19230), tortoise (Loveridge 1936B), python (Howard 1908), tortoise and snakes (Mettam 1932), snake (Theiler 1945A), and blind lizard, Aoontias lumbeus (Bedford 1936). A bird, the black..chested har. rier eagle, is §Iso known as a host (Theiler, unpublished).

BIOLOGY Aside from remarks in the generic introduction and host re. view, nothing additional has been reported for this species. DISEASE RELATIONS

It is of interest to conjecture that these ticks may transmit the hemogregarines so frequently found in reptiles.

It is claimed that natural infections of Q fever (Coxiella burnetii) have been found in this species.

[graphic]

REMARKS

A complete suImn'ary of the taxonomy, morphology, and distribution of this species has been presented by Theiler (194511). Malformed specimens have been described by Santos Dias (1948A), Schulze (19508), and Tendeiro (l95lB). Schulze (l9l.3B) discussed certain aspects of the nymphal gut of this species, and (1941) features of the haller's organ, and (19508) of the dorsal foveae and festoons.

Should male specimens with only narrow lateral ornamentation be found, the presence of _A_. ochraceum Neumann, 1901, or of _.§. fraudigerum Schulze, 1935, shofi 5 considered (cf. Theiler 194511

an os Dias 1955C for descriptions and illustrations).

Tendeiro (1948) mentioned A. halli sp. nov., without description (i.e. a nomen nudum) and (I955) described as A. halli sp. nov. specimens from Fortugese Guinea that conform to all specimens studied from the Sudan. The first coxal spur is single; there is

a protuberance on the fourth tarsus; and the scutal ornamentation is somewhat different from that usually described for this species (compare with Theiler 1945A description and illustration). However, Theiler (correspondence), who has had more experience with this genus in Africa than anyone else, writes: "A. halli ....... to me, is but an extreme variation of A. exornatum;'being as far as I can see, the exact replica of A. arcanum Karsch, 1879'. In view of this opinion and with Dr. Theiler|s permission, A. halli Tendeiro,

1950, has been synonymized under A. exornatum (K5ch:_I8Z4) (Hoog. straal 19543).

IDENTIFICATION

Theiler (l945A) described and illustrated the immature stages and redescribed the adult stages of_A. exornatum.

[graphic]

Males and females are easily identified by generic characters plus the presence of scutal ornamentation consisting of green or

coppery markings on the shiny dark brown surface. Other characters are mentioned in notes under the key to this genus.

[graphic][merged small][merged small]

Figures 100 and 101, <3‘, dorsal and ventral views. Figures 102 and 103, Q, dorsal and ventral views

[merged small][graphic]

.. 287

APONQ41-1A LATUV. (Koch, 1844)(= 5. LAEVE Neumann, 1899, of authors). (Figures 100 to 103)

THE SNAKE TICK

L N Q 6‘ EQUATORIA PROVINCE RECORDS 2 1 3 Torit* Na'a melanoleuca Dec 1 1 Torit la a haje Dec 3 Torit v on reyius Nov 2 Torit Dendroas 1S p. pglylepis Jan 1 Katire Roaedon lineatus Sep (CI.-'!!~i)

[graphic]

DISTRIBUTION IN THE SUDAN

uatoria and U or Nile: Without locality data (King 1926).
..PL

[graphic]

Bahr El Ghazalg Ga1ual.Nyang Forest, Naja ha'e, 1953, col. lected by H: Hoogstraal and R. E. Kuntz. Same loc ity, from

"cobra", 1953, (svs). Yirol, from "python", 1951., E. T. M. Reid legit. Specimens in HR collection.

U er Nile: Kenisa, Nasir, and Er Renk, from cobras, 1909, H. H. fiing Ievit (SGC).

DISTRIBUTION

The snake tick is distributed throughout the Ethiopian Faunal Region.

wssr AFRICA: NIGERIA (Hoog:-straal 1951.0). LIBERIA (Be uaert 193017.‘ iEs1'E"': 11 'wss'r AFRICA (vi11iors 1955). SIERRA LEONE Entomological Report 1916). 001.0 COAST (Curson 1916). PORTUGESE GUINEA (Tendeiro 19510 ,0 ,1952c ) .

[graphic]

*Torit snake collections have been studied by Loveridge (1955).

« PreviousContinue »