534 



REV. 0. P. CAMBRIDGE ON SOME 



The legs are pale whitish yellow, furnished with hairs and black spines, 

 those on the two fore pairs of legs being the longest and strongest, ses- 

 sile, and arranged in pairs beneath the tibiae and metatarsi ; be- 

 sides these are several on the uppersides of the femora : each 

 tarsus ends with two claws, beneath which is a small scopula. 



The falces are strong, slightly projecting forwards, and a little prominent 

 near their base in front ; they are furnished with a few black bristly 

 and other hairs, and (except a small oval yellowish patch near their 

 inner extremities) are of a rich dark yellow-brown colour. 



The maxilla and labium (which are of normal structure) are also of a 

 deep yellowish brown, tipped with pale yellowish. 



The eyes are nearly of the same size and placed on slight tubercles, in 

 the ordinary position ; but there is scarcely any perceptible clypeus, 

 the fore central eyes almost touching the fore margin of the caput ; 

 the foremost row is much the shortest, straight, and equally di- 

 vided by the eyes of which it is composed ; the interval between 

 those of the hind central pair is rather greater than that between 

 each of them and the hind lateral nearest to it ; and the fore 

 central eyes form a quadrangular figure whose fore side is the shortest ; 

 the interval between each two eyes of the foremost row is about 

 equal to an eye's diameter. 



The normal grooves and indentations on the cephalothorax are nearly 

 obsolete; that indicating the junction of the cephalic and thoracic 

 segments is marked by a short, deep, red-brown line. 



The sternum is heart-shaped, yellow, and has some red-brown maculae 

 on the margin, opposite the insertion of the legs. 



The abdomen is oval, of a dark, warm, purplish, red-brown colour, 

 streaked and marked with the normal pattern of pale reddish yellow, 

 and pretty thickly clothed with fine yeilowish-grey hairs ; the under- 

 side is of a more uniform purplish red-brown, with two parallel pale 

 reddish -yellow lines along its centre; these lines do not reach the 

 spinners. 



The epigyne connected with the sexual aperture is of large size and very 

 unusual and characteristic form ; it is very strong and broad, directed 

 backwards, and folded inwards at its extremity ; the figure given (PI. 

 XIV. fig. 3) will give a better idea of this portion of structure, by 

 which the species may be known at a glance from others closely allied 

 in form, structure, and colour. 



A single adult female was kindly forwarded to me in 1872 by 

 Mr. J. "W. Traill, of the University of Aberdeen. 



