Page images
PDF
EPUB
[blocks in formation]
[blocks in formation]
[graphic][merged small][merged small][ocr errors][merged small][merged small][graphic][merged small][merged small]

Figures 158 and 159, d, dorsal and ventral views
Figures 160 and 161, q, dorsal and ventral views

A to F, o genital area outline and profile. A to C, partly engorged. D, fully engorged. E and F, unengorged.

[blocks in formation]

HYALOMMA DETRITUM Schulze, 1919

(Including H. SCUPENSE Schulze, 1919)

(Figures 158 to 161)

THE SHINY HYALOMMA

NOTE: The some twenty synonyms of H. detritum, as presented by Delpy (19498), are listed in the section on DISTRIBUTION below according to the political areas from which the specimens of each originate. It is impossible to believe that H. detritum had not been described as a species by some author somewhere prior to 1919, yet no contemporary specialist has come forth with a previous name for this species. Steps should be taken to stabilize the name H. detritum in order to prevent the further confusion that is bound to arise when an earlier name for this tick is inevitably dis covered. Special attention is called to the "biological race", H. scupense, discussed below.

DISTRIBUTION IN THE SUDAN

H. detritum occurs rarely in northern parts of the central Provinces of the Sudan. Additional collecting is necessary to determine its exact distribution here. It would be of some interest to know whether H. detritum has invaded the Sudan from the Red Sea coast or via the Nile Valley.

Kassala: Port Sudan (cattle; SVS). It is not known whether hosts of these specimens were local or transient animals.

Kordofan: Four males have been collected from Kordof an cattle at the Khartoum Quarantine station (January and February)

(HH).

Khartoum: See Kordofan above.7

DISTRIBUTION

H. detritum is an Asiatic tick that ranges from Manchuria through China and India, much of southern Russia, southeastern Europe, and the Middle East; into Asia Minor, the Near East, the Mediterranean littoral of Africa westwards to Algeria; and into northcentral Sudan, where it occurs only in small, localized populations. It also occurs in Spain, probably having been introduced from northwestern Africa.

In Egypt and apparently in Libya, H. detritum is considerably less common than it is to the west in Algeria and in Near Eastern countries. This distributional pattern is common for animal groups that have invaded North Africa from the east.

NOTE: Specimens referred to this species by Rageau (1951) from the Cameroons were later determined by him (1953) as H. truncatum (= H. transiens).

NORTH AFRICA: *ALGERIA (All as H. mauritanicum or as H. mauritanicum annulatum: Senevet 1922B,C,1924A,1925,1928A,1929B, 1937. Senevet and Rossi 1924. Sergent, Donatien, Parrot, Lesta quard, and Plantureux 1926,1927A,B,C,D,E. Sergent, Donatien, Parrot, and Lestoquard 1928A,B,C,1931A,B,C,D,E,F,1932A,B,1933A,B, 1935A,B,1936A,B,C,1945. A. Sergent 1930. Sergent and Poncet 1937,1940,1941. Sergent, Donatien, and Parrot 1945. E. Sergent 1948. Blanc and Brunneau 1949. d'Arces 1952. As H. detritum mauritanicum: Schulze 1930. Kratz 1940).

MOROCCO (As H. mauritanicum: Desportes 1938). TUNISIA (As H. detritum: Senevet 1937. Colas Belcour and Rageau 1951). LIBYA (As H. mauritanicum: Franchini 1927,1929A,E. Hoogstraal, ms.). EGYPT (Present but rare: Hoogstraal, ms ms.).

EAST AFRICA: SUDAN (As H. detritum: Hoogstraal 1954B).

Note: H. mauritanicum has been reported from Somalia, with out precise locality data, by Niro (1935), but this record has not been subsequently repeated by Italian workers.

*Algerian specimens of H. mauritanicum, kindly presented by Dr. E. Sergent and Dr. Senevet, conform to H. detritum.

« PreviousContinue »