18/4.] REV. O. P. CAMBRIDGE ON NEW DRASSIDES. 379 



The eyes are in the usual two transverse rows, the front row being 

 considerably shorter than the hinder one and slightly curved, the 

 hinder one being straight ; the hind central pair are smaller than the 

 hind laterals, and nearer to each other than each is to that of the 

 latter nearest to it ; the fore centrals are largest of the eight, and are 

 further from each other than each is from the fore lateral on its side, 

 each fore lateral being in fact nearly, if not quite, contiguous to the 

 fore central next to it. The height of the clypeus is less than half 

 that of the facial space. 



The legs are moderately long, their relative length being 4, 1, 2, 3. 

 The femora, gemmae, and tibise are more than usually strong ; they 

 are well furnished with hairs ; and the tibiae and metatarsi of the 

 third and fourth pairs have some strongish spines ; there are also 

 some spines beneath the metatarsi of the first and second pairs, 

 together with numerous papilliform hairs beneath all the tarsi and 

 metatarsi, except perhaps the metatarsi of the fourth pair, which 

 appear to be without them. 



The maxillce are rather stronger than usual, but of normal form. 

 The palpi issue from, as nearly as possible, the middle point towards 

 their extremities, which are of a pale yellowish colour. 



The labium is of a broad oblong form, slightly rounded at the 

 apex. 



The sternum is similar in colour to the cephalothorax, and seems 

 to be more convex than usual, the central portion, however, being 

 quite flat. 



The abdomen is black, hairy, of an oblong-oval form, project- 

 ing a little over the base of the cephalothorax ; the underside of 

 the fore part furnished with strong upturned bristly hairs. The 

 plates of the spiracles are pale yellow-brown, and the genital aper- 

 ture margined with deep brownish red. The spinners are short ; 

 those of the inferior pair strong and longest, those of the superior 

 pair being only just discernible. 



A single adult female was found by myself under a stone near 

 Ischl (Upper Austria) in the summer of 1865. 



Prosthesima ctjrina, sp. n. 



Adult male, length 2g lines. 



The cephalothorax of this species differs from the majority of the 

 species of this genus in being broader and more truncate before ; and 

 the profile line, instead of having its highest point at the thoracic 

 junction and falling gradually in a slightly curving line to the eyes, 

 presents a uniform curve, the highest point being at the occiput ; it 

 is of a deep rich reddish-brown colour, sparingly clothed with a few 

 fine palish hairs ; the normal grooves and indentations are very 

 slightly marked, and the lateral constrictions at the caput are barely 

 visible. The clypeus is equal to half the facial space. 



The eyes are in two transverse, straight, parallel rows, forming 

 an oblong figure, whose length is more than double its width ; the 

 hinder row is longest, and its two central eyes are smallest of the 

 eight and round, the interval separating them being equal to very 



25* 



