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Show 130 MR. R. I. POCOCK ON T H E S C O R P I O N S [Mar. 18, of Parabuthus, the external series being composed of pairs of teeth, enlarged and set obliquely, the internal series formed of single teeth only slightly separated from the apices of the median rows, and constituting with the teeth of the external series oblique, semi-transverse, short rows; the median rows not overlapping. Legs hairy ; the first pair almost without granules, the second slightly granular, the third with granular and subcarinate femur and granular patella, the fourth with strongly granular and subcarinate femur and patella; tibice of two posterior pairs spurred ; coxa smooth. Pectines very long, projecting nearly to the end of the trochanter of the fourth pair of legs ; furnished with from 24-27 similar teeth. Measurements in millimetres.-Total length 34 ; length and width of cephalothorax 4 : length of tail 22; of first two segments 6-5 ; of fifth segment 4*6; width of first 2-5 ; of fifth 2*1: humerus, length 35, of brachium 4 ; width of brachium 1*5, of manus 19 ; length of " hand-back " 2-8 ; of movable dactylus 4. A single male specimen in the Museum collection ticketed " S. Africa, near the tropic of Capricorn." This species is closely allied to L. pilosus, Thorell (the type of tbe genus), to L. lunulifer, Simon, and to L. planimanus, Karsch. From L. pilosus it differs in having the inferior caudal keels well developed and denticulate; from L. lunulifer it may be recognized by its tubercular vesicle, granular legs, and by its subcostate and subgranular posterior abdominal sternite; and from L. planimanus by the form of its lateral tergal keels, by the presence of ten keels on the third caudal segment, and by its narrower hand. Peters's species Centrums trilineatus (Monats. Ak. Wiss. Berlin, 1862, p. 515), from Tette, is too briefly characterized to be identified; but it probably belongs to this genus and may, indeed, prove to be synonymous with either of the four species here discussed. LEPREUS FISCHERI, Karsch, var. nov. NIGRIMANUS. (Plate XIV. fig. 2.) 1 Tityus tricolor, Simon, Bull. Soc. Ent. Belg. 1882, p. lix. Colour. Trunk above olivaceous, of a dull green colour, the sides of the cephalothorax paler than the middle ; each of the first six tergites marked with three pale spots-one median, and one on each side near the lateral posterior angle ; seventh tergite paler than the preceding; trunk below olivaceo-testaceous ; upper surface of first four caudal segments ochraceo-testaceous, the under surface of the same colour, but on the second, third, and fourth there is an anterior black spot on each side and a median black posteriorly dilating band ; fifth segment and the vesicle wholly piceous or brunneous ; aculeus black at the tip, pale at the base; humerus, brachium, and distal half of digits clear ochraceous; manus and proximal half of dibits piceous ; legs wholly pale ochraceous. Cephalothorax lightly emarginate in front; ocular tubercle with ante-ocular portion smooth ; posterior and lateral portions finely and sparsely granular. |
