764 rev. o. p. Cambridge on [June 18, 



eminence being paler than the rest. The falces, maxillae, and labium 

 are yellow-brown ; and the sternum is suffused with black. 



The abdomen is oval, moderately convex above, and sparingly 

 clothed with hairs ; its colour is black, mottled with pale whitish, 

 and with some transverse angular lines on the hinder part of the 

 upperside, near the centre of which is a rectangular figure formed 

 by four depressed dots. 



The female is much larger than the male, and has the caput di- 

 stinctly elevated, though not to nearly so great an extent as that of 

 the male ; the lateral pairs of eyes also in the female are wider apart, 

 in comparison with the eyes of the hinder pair, than those of the 

 male ; the form of the genital aperture is distinctively characteristic. 



An adult male and female were received for examination from Dr. 

 L. Koch, by whom they were captured near Nuremberg. 



Erigone (Walckenaera) cito, sp. n. (Plate LXVI. fig. 21.) 



Male adult, length ^ of an inch ; female adult, length y^. 



The cephalothorax is of a yellowish-green colour, with a sooty 

 tinge, and narrowly margined with black ; the legs are of a dull 

 yellowish brown, as are also the palpi, falces, and maxillae, the sternum 

 and labium being more suffused with sooty brown. The colour of 

 the abdomen is black-brown ; it is also sparingly clothed with hairs, 

 and somewhat rugulose. 



The caput is elevated, the elevated portion being nearly the height 

 of the clypeus, or about one third of the length of the cephalothorax ; 

 the upper part of the elevation is rounded, and (looked at in profile) 

 a little receding ; i. e. there is a strongish impression above the fore 

 central pair of eyes ; a patch between these eyes and those of the hind 

 central pair (but nearer to the former) is thickly clothed with hairs, 

 and there are a few short but prominent hairs on the occiput ; just 

 above and behind each lateral pair of eyes is a deep circular pit or 

 depression, which has a white shining appearance, something like an 

 eye, and around and behind these pits the surface is indented, the 

 indentation running backwards, in a pointed form, to the occiput. 



The eyes are placed on small black spots ; the fore lateral are in a 

 straight line with those of the fore central pair ; those of the hind 

 central (or upper) pair are rather wide apart, and just beneath the fore 

 margin of the elevation ; those of each lateral pair are placed ob- 

 liquely on small tubercles ; the fore centrals, which are contiguous 

 to each other, are very small and difficult to be seen, and each of 

 these is rather more than an eye's diameter from the fore lateral 

 eye on its side. The clypeus is rather prominent, bluff, and rounded, 

 and its height is nearly equal to half that of the facial space. 



The legs are moderate in length and strength, as also are the 

 palpi, whose cubital joints are rather clavate and bent, and much 

 longer than the radials ; these are short and prolonged at their 

 fore extremity into two apophyses : one, rather on the inner side is 

 long, tapering, pointed, and slightly curved outwards ; the other 

 (towards the outer side) is shorter, and terminates in a sharp black 

 spiny point, with a small tubercle near its base. The digital joint 



