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KEY TO SUDAN SPECIES OF ARGAS
MATES AND FEMALES

l. Pair of transverse, slitlike organs situated just posterior of anus. Body outline generally subcircular or wider than long. (Bat parasites).................................?

Wentral paired organs lacking. Body
outline oblong, considerably longer than
wide. (Not bat parasites)................................. .4

2. Legs as long as or longer than body. Hood present. Peripheral differentiation of integument and lateral suture lacking- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -A- BOUETI

Figures 23:24,35.3%

Legs shorter than body. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

3. Body outline considerably wider than long. Hood present. Peripheral differentiation of integument and lateral Suture lacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A. CONFUSUS

Figures 25,26,35,36

Body outline generally subcircular or
circular, never as wide as A. confusus.
Hood absent. Peripheral integument
striated and lateral suture present.........A. VESPERTILIONIS

Figures 2T2:37:38

4. Dorsum with large, depressed polygonal areas. Size large (15 mm. to 22 mm. long). (Adults parasitic on mammals)..............A. BRUMPTI Figures 15,20:31:32

Dorsum finely wrinkled. Size moderate (10 mm. long, usually less). (Fowl

Parasites)..................................................?

Dorsal and ventral periphery of distinct
quadrangular "cells". Postpalpal hairs
present. (Chicken parasite, common in
Sudan)............................................A. PERSICUS

Figures I5, IE7, 28

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Dorsal and ventral periphery finely

wrinkled. Postpalpal hairs absent.
(Pigeon parasite, very rare in Sudan).............A. REFLEXUS

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Figures 15 and 16, Argas persicus Figures 21 and 22, Argas vespertilionis Turgas refl.

Figures 17 and 18, reflexus Figures 23 and 24, Argas boueti
Figures 19 and 20, Argas Erumpti Figures 25 and 26, Argas confusus

DORSAL PERIPHERAL DIFFERENTIATION (odd numbered figures) AND LATERAL INTEGUMENT (even numbered figures) OF ARGAS SPECIES.

e presence of a lateral suture in Figures 16,18,20 and 22

Note especially th
* and its absence in Figures 24 and 26.

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Figures 27 and 28, Argas persicus, Q, dorsal and ventral views Figures 29 and 30, Argas reflexus, Q, dorsal and ventral views

ARGAS (ARGAS) PERSICUS and ARGAS (ARGAS) REFLEXUS Egyptian Specimens

PLATE IX

- 58

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ARGAs (ARGAS) PERSICUS (Oken, 1818).

(Figures 15,16,27 and 28)
THE POULTRY ARGAS CR FOWL TICK*.

I, N 9 d. EQUATORIA PROVINCE RECORDS l Kapoeta domestic chicken Jul (SGC) 19 TOrit, domestic chickens Dec 68l. 96 Immurok domestic chickens Jan 48 2 Juba domestic chickens Dec 17 ll 9 TOrit poultry house Dec 12 4 2 Juba poultry house Aug

DISTRIBUTION IN THE SUDAN "Throughout the Sudan" (King 1926). In addition to the abovelisted Equatoria Province records, two localities have been published in the literature and I have seen specimens from the following places: Upper Nile: Malakal (HH). Bahr El Ghazal: Wau (SWS, HH).

Blue Nile; Kosti, Wad el Nail near Singa, Wad Medani (all SGC). "Blue Nile Districts" (Archibald 1923).

Kassala: Suakin (SGC).

Kordofan: Delami (SGC).

Darfur: Fasher (SVS).

Khartoum: Khartoum (SGC, SWS, Gordon College collection, HH). Omdurman (HH). See also Balfour (i906,1907,19085,1909,1910,1911A, B,C,D,E,G,1912) for spirochete studies on A. persicus from Khartoum.

Northern: Dongola (Neumann 1901). Wadi Halfa, Abu Hamed, Atbara, Ed Damer (HH).

*In South Africa, called "The Fowl Tampan" (Theiler 1952A,B).

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