Ananteris sabineae, Lourenço, 2001

Lourenço, Wilson R., 2001, Description of a new species of Ananteris (Scorpiones, Buthidae) from the south of French Guyana, Zoosystema 23 (4), pp. 689-693 : 690-692

Ananteris sabineae n. sp.

Ananteris pydanieli – Lourenço 1982: 133 (misidentification).

Ananteris sp. – Lourenço & Monod 1999: 301.

TYPE MATERIAL. — Holotype, Guyane française, Haut Ouarimapan , camp du départ du sentier indien, VII.1972, J.-P. Gasc coll. ( MNHN RS-6272 ). No paratypes.

ETYMOLOGY. — Named in honor of Dr Sabine Jourdan, Paris.

DIAGNOSIS. — The new species is related to Ananteris pydanieli , which is endemic to the region of Manaus, Amazonas state, Brazil ( Lourenço & Monod 1999), mainly by a similar pattern of cheliceral pigmentation; in both species all spots are absent. The two species can, however, readily be identified by: 1) much paler of Ananteris sabineae n. sp. Total length 27.7 Carapace length 3.8 anterior width 2.4 posterior width 3.8 Metasomal segment I length 1.8 width 2.3 Metasomal segment V length 4.9 width 2.2 depth 2.1 Vesicle width 1.2 depth 1.1 Pedipalp femur length 3.5 femur width 1.0 tibia length 4.4 tibia width 1.3 chela length 5.2 chela width 0.8 chela depth 0.8 Movable finger length 4.0 Chelicera length 1.8

pigmentation of pedipalps and legs in A. sabineae n. sp., with only diffused spots (see Lourenço 1982); 2) darker pigmentation of carapace and tergites in A. sabineae n. sp., with less conspicuous yellow spots; 3) differences in cheliceral dentition; in A. sabineae n. sp. movable finger has two basal teeth, whereas in A. pydanieli only one is present; median and basal teeth of fixed finger more conspicuous in A. pydanieli ( Fig. 2 H-I).

DESCRIPTION

Measurements

See Table 1.

Coloration

Basically brownish-yellow, symmetrically marbled with dark reddish brown, producing an overall spotted appearence. Prosoma: carapace dark yellow, almost totally covered with brown spots; eyes surrounded by black pigment. Mesosoma: yellowish-brown with confluent brown stripes and two diffused longitudinal yellowish stripes. Metasoma: segments I to IV reddish-yellow, with a few brown spots; segment V reddish-brown, with less marked spots. Vesicle

FIG 1. — Ananteris sabineae n. sp., female holotype; A, habitus, dorsal view; B, habitus, ventral view.

reddish-yellow without spots. Venter yellowish; sternite VII reddish-yellow. Chelicerae yellowish without any spots over their entire surface; fingers reddish-brown. Pedipalps: yellowish with a few diffused spots better marked on the femur; chelae darker than tibia; fingers yellowish with the rows of granules slightly reddish. Legs yellowish with diffused spots, better marked than on pedipalps.

Morphology

Carapace moderately granular; anterior margin with a slight median concavity. Anterior median superciliary and posterior median keels feeble. All furrows moderate to feeble. Median ocular tubercle distinctly anterior to the center of carapace; median eyes separated by approximately 0.75 of ocular diameter. Three pairs of lateral eyes. Sternum subtriangular. Mesosoma: tergites moderately granular. Median keel moderate in all tergites. Tergite VII pentacarinate. Venter: genital operculum divided longitudinally, each plate having a more or less triangular shape. Pectines: pectinal tooth count 19-18; basal middle lamellae of the pectines not dilated; fulcra absent. Sternites smooth with moderately elongate stigmata; VII granulated with vestigial keels. Metasoma: segment I with ten carinae, crenulate. Segments II to IV with eight carinae, crenulate. Intercarinal spaces moderately to weakly granular. Segment V with five keels. Telson moderately granular with three ventral keels and with a fairly short and moderately curved aculeus; subaculear tooth strong and spinoid. Cheliceral dentition

A B C E characteristic of the family Buthidae ( Vachon 1963) ; fixed finger with two moderate basal teeth; movable finger with two very weak basal teeth; ventral aspect of both finger and manus with dense, long setae. Pedipalps: femur pentacarinate; tibia and chelae with a few vestigial carinae; internal face of tibia with eight to nine spinoid granules; all faces feebly granular, almost smooth. Movable fingers with seven oblique rows of granules; two accessory granules present at the base of each row. Trichobothriotaxy; orthobothriotaxy A-β ( Vachon 1973, 1975). Legs: tarsus with very numerous fine median setae ventrally. Tibial spurs strongly developed on legs III and IV.

Figures

FIG. 2. — Ananteris sabineae n. sp.; A, metasomal segment V and telson, lateral aspect; B, movable finger cutting edge; C-G, trichobothrial pattern; C, D, chela, dorso-external and ventral aspects; E, femur, dorsal aspect; F, G, tibia, dorsal and external aspects; H, chelicera; I, same for A. pydanieli Lourenço, 1982. One can observe differences in basal teeth for both fixed and movable fingers. Scale bars: 1 mm.