OCR Text |
Show 426 REV. O. P. CAMBRIDGE ON NEW ARANEIDEA. [May 16, numerous strong hairs. Another fold in the epidermis, a little in front of the spinners, appears to indicate also an additional aperture of the same nature. Spinners short, compact, those of the inferior pair strongest. This genus is allied to Anyphana. ARACHOSIA ANYPHiENOIDES, sp. n. (Plate XXIX. fig. 2.) Adult female, length 3| lines. The colour of the cephalothorax (which is thinly clothed with short silky greyish hairs) is brownish yellow, tinged with dull orange. A broad central brown band runs from the eyes to the posterior extremity; and there is a submarginal thoracic line of a deeper red-brown hue. The eyes are seated on small black spots, the outer ones of the anterior row are smallest, and the interval between those of the hind central pair is considerably greater than that between each and the hind lateral next to it. The relative position of the eyes of the anterior row is also nearly similar, and the hind lateral (on each side) about equally separates the hind central aud fore lateral eyes. The legs are of a clearer yellow colour than the cephalothorax, speckled with dark red-brown, chiefly on the fore parts and outer sides of the femora. The spines are long and rather slender; beneath the tibiae of the 1st and 2nd pairs of legs are 4 (in two pairs), and another pair beneath the base of the metatarsi; those on the 3rd and 4th pairs are more numerous and irregularly disposed. The scopula beneath the tarsi and metatarsi is densest on the 1st and 2nd pairs. The palpi are slender and moderately long, yellow, and furnished with numerous long spine-like bristles. Each palpus ends with a small curved claw. The maxilla and sternum are similar in colour to the legs ; the labium tinged with yellow-brown. The abdomen is of a dull clay-yellowish hue, clothed with short greyish silky hairs on the pale portions. A broad, longitudinal, central dark-brown band (slightly denticulate on its margins towards the hinder part) occupies the upperside, which has also on each side a narrow, lateral, somewhat broken stripe of a similar hue. The underside is also marked with a broad, slightly tapering, central longitudinal brown band, on which are numerous pale strong hairs near the middle, over and around the central spiracular opening (mentioned in the generic diagnosis). The genital aperture is rather large, somewhat horseshoe-shaped, and of very characteristic structure. A single example was contained in Mr. Traill's Amazon collection. Fam, THERIDIIDVE. COLEOSOMA, g. n. Nearly allied to Sphecozone, Cambr., but easily distinguished by the more depressed caput, and especially by the formation of the |