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IDENTIFICATION

Males: This handsome species is easily recognized and readily disting§Ished by the following combination of characters: (1) center of subanal shields posterior of central ais of adanal shields, (2) scutum regularly covered by deep, rather large puctations that often tend to obscure the long lateral grooves, and (3) distinctive narrowing of the scutal margin posterior of the lateral grooves, giving it a rectangular outline posteriorly.

A moderate amount of circumspiracular pilosity may in some specimens suggest H. rufi . The festoons are more or less fused, but the central and two me an pairs are always distinct. The scutu is dark reddish brown to black and the legs are brightly ringed. The comparatively narrow, elongate scutal shape is in contrast to the wide outline of H. rufi s; the rectangular pos_ terior margin is distinctive of B, mgessum.

Females: Numerous, regula scutal punctations, similar to those of the male, are distinctive; in some specimens they are more superficial but still numerous. The genital apron is broad_ ly triangular in outline; it is composed of an anterior narrowly transverse bulging ridge and a posterior button sloping or depessed) not so wide as the anterior ridge. zrwith respect to the outline and profile of the genital area of this species, no specimens observed during the present study conform to that illustrated by Delpy (l949B, page 106), which is more narrowly triangular (equilateral) and gradually sloping in profilei7 A certain amount of circumspiracular pilosity is pesent in some females; differeces in the genital apons distinguish these specimens from females of_H. rufipgs, the scutal punctations of which may be quite similar to se of H. impressum.

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Figures 178 and 179, 63 dorsal and ventral views
Figures 180 and 181, Q, dorsal and ventral views

A, Q genital area. B to D, Q genital area outline and profile. B, unengorged. C, partly engorged. D, fully engorged.

HAl£MMA,MARGINATUM
Sfidan Specimens

- 465

H!AL(14MA MARGINATUM Koch, 1844. 5
(Figures 178 to 181)
mm MEDITERRANEEN HYALQMA

NOTE: 1_i. marginatum appears in European literature chiefly as either H. mar inatum or asngé savi i and in recent Soviet literature as . mn um 1 um. e Adler-Feldman.Muhsam (1948) school employed the name H. mar inatum, the Delpy (1949) school H. savi 1 (Gervais, 181.2) '£'11i_"_c owing the lead of Schulze. The ‘H.-savi 1 of Adler and Feldman-Muhsam (1943) and of some of their followers is H. excavatum. Recently Feldman-Muhsam (1951,) concluded, fmmst~ Koch (181.4) type material,

that H. mar ' atum is the correct name for this species although reasons for so doing are somewhat obscure.

Pomerantzev (1950) states that the name H. lmnbeum lumbeum (Panzer, 1795) refers to the present species.‘ TEIs poiht merits

further investigation. Feldman-Muhsam apparently has not considered the possibility of this synonymy.

DISTRIBUTION IN THE SUDAN

H. mar inatum thus far is known from only two localities in central Swan, one in the west and one in the east. Further search will probably reveal additional populations between these two places.

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H. nnrginatum appears to be met commn in southeastern Europe and sout rn Russia from where it extends eastward into India and

Indochina and westward throughout southern Europe, and into the

Near East including Arabia, and North Africa. Elsewhere in Africa, small populations are scattered through the drier transitional areas just south of the northern deserts from the Red Sea to the Atlantic Ocean.

Soviet workers in Transcaucasia consider this to be a "Mediterranean species‘ in contrast to the other hyalommas of their territory, which they classify as either "widely spread in the southern part of the Palearctic Region“ or "peculiar to the zone of western deserts" (Pomerantzev, Matikashvily, and Lototsky 191.0).

The mapped distribution of H. mar inatum (: H. savi i) as presented by the American Geographic c e y (1951. oes not correspond to the range of any recognized species in this genus.

NORTH AFRICA: "NORTH AFRICA" (As H. marginatum balcanicum: Schu~e ottke 1930). ‘ '__"_'

EGYPT (As O orhaestes as tius: Virey 1822. As _I_-_I. savignyig Hoog~. % populations exist on the e erranean littoral and in desert edge situations of Nile

Vall).ey and Delta; somewhat more common in Sinai: Hoogstraal, ml I

LIBYA (Specimens from several localities in HH collection. As H. marginatum balcanicum; Stella 19386).

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TUNISIA (As H. tlmesiacumz Schulze and Schlottke 1930. As H. saviggyi: Oo1as_§elcour and Rageau 1951).

MORGZCO (As H. savi i: Blanc, Martin, and Maurice 191.6, l91.7A,B. Blanc, Bruneau, artin, and Maurice 1948. Blanc and Bruneau 191.9. Blanc, Martin, and Bruneau 191.9. Blanc 1951).

ALGERIA According to Delpy (correspondence), the ae tium of nevet and subsequent French workers in Algeria, ls mar inatum (= Delpy's H. savi i). - The “H. ae ium" life cyc e s les reported by ~(19B) on-mg erl allrglm Algeria refer to H. marfiinatum H1-I determination o Nutt 0t

1305 in British Museum a ur History). Mostof the references

listed for Algeria on page 405 also contain notes on H. mar inatum n {Here

(as H. as tium)- this species is apparently less co'mmo thm-H.~ r um._:7

WEST AFRICA: )NIGERIA (As H. marginatum annuliE : Schulze and ~0 . _

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[Delpy (19498) synonymized _}_i. im ressum brunnei armatum Schulze and Schlottke, 1930 (from Togo) Ear _H. mar inatum (: I_i. savi i), but this is actually a synonym of H. HEL

armatum (see page ). The “H. savi i" of Tendeiro (I948, I9I9A I9 ese

, 5lF,l952A,C,D) from Portug nea is shown by the same author's discussion (194%) to be tru.ncatum._7

EAST AFRICA: sunm (As g. savignyiz Hoogstraal 1951.13).

1-H. mar natum balcanicum a synonym of H. mar inatum has been reported Iron R~,&muia by Italian worErs;,these records may be correct but it is more likely that they refer to H. imE1tatum.7

KENYA (A single 6‘ in BMNH from a cow, Kisima, Nanyuki, May, 1932, collected after dipping by E. A. Lewis. This specimen is entirely typical of marginatum; H.H. det.).

[sournmn AFRICA: Santos Dias (19500) noted that "H. savi I" ha Eon reported from Angola by A. Morais in 1909, Eli Igat this probably refers to H. truncatum (= H. imgessum transiens) _ -'

NEAR EAST: PALESTINE (As H. mar inatum: Bodenheimer 1937. mlor~mem l946,l'94 . and LEBANON (As H. savi i: Pigoury 1937). TRANSJCBDAN (Hoogstraal, ms.). Tflfilfi (As H. mar inatum balcanicum: Schulze and Schlottke

anatoficumz

1930. As Cfiuzo I9 . As savi i: Kurt. pinar 1954 a~ 1954. As H. marginatum: Eoogstraal,

ms.). CYPRUS As H. cygiacumz Sch ze an hlottke 1930. Kratz 1940. T "H: savlglal exsul“ of Schulze and Schlottke,

1930 attributed b? De py /.‘9F)_£o H. savigpri; mar inatum (=

H. savi i of Delpy) ap are rather to _. excavaéum; f. r.~.t—1§3i'o. , pp. 534.535 . IRAN (As H. eevi"“T15"= elpy 194612, 19490). IRAQ (As _r_1. H181‘ natum: Hoogstra§1__EL, ms. Hubbard 1955).

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