| OCR Text |
Show 50 MR. C. V. A. PEEL AND OTHERS ON [JaU. 23, BHIPICEPHALUS MARMOREUS, sp. n. (Plate III. figs. 1-1 d.) d • Colour. Capitulum yellowish brown; dorsal surface of body yellowish white, with five large deep red-brown patches, one on each side extending backwards from the cervical groove, one on each side longitudinal and sending off towards the middle line a broad transverse bar, and a large posterior median patch with convex hinder border and anterior border produced forwards in the middle line, also a narrow brown band running round the margin of the dorsal scute ; legs yellowdsh brown, with a broad longitudinal white band on the upperside of the femora, patella?, aud tibia?; ventral surface of body whitish, with chitinous sclerites deep brown like the legs. Posterior border of capitulum evenly concave, the angles moderately produced; lateral margins moderately, not strongly diverging, the anterior border only a little wider than the posterior. Dorsal plate almost entirely covering the sides of the body, leaving merely a narrow marginal membranous rim; cervical grooves distinct, short; marginal groove represented by a series of coarse punctures ; three posterior punctured grooves on the posterior dark patch ; for the rest the dorsal plate is without grooves but is pitted with coarse scattered punctures ; the posterior rim divided by short sulci into eleven festoons. Ventral area with a single long piriform adanal plate, which is narrowed in front and extends backwards almost to the posterior coxa?; its external border slightly convex, internal border concave in the middle, convex in the anterior and posterior third, posterior border oblique and ending internally in a rounded rectangular prominence; a single small median sclerite on the postanal membrauous area. Coxa; of anterior legs produced into two strong spiniform processes ; of 2nd to 4th with a single distal spiniform process on the posterior side.1 Total length of dorsal plate 3*8 m m. Loc. Bularli in West Somaliland (May 1895). A single specimen ( d type) in British Museum. BHIPICEPHALUS ARMATUS, sp. n. (Plate III. figs. 2-2 f.) d . Colour a tolerably uniform deep brown, with black markings on the grooves of the dorsal plate; legs deep brown ; ventral area pale. Capitulum with posterior border straight in the middle, its angles more abruptly spiniform than in R. marmoreus, its lateral margins more obliquely diverging in their posterior two-thirds then abruptly converging. Dorsal scute not quite covering the lateral area, with normal cervical grooves ; marginal groove deep, strongly pitted, extending from a point on a level with the cervical groove to the beginning of the festoons of the posterior border; posteriorly there is a pair of deep pitted grooves, and between 1 Owing to the dried state of the specimen, satisfactory examination of the mandibular armature was impossible. |
