1874.] NEW SPECIES OF ERIGONE. 431 



The/«/ces are moderately long and strong; they are prominent 

 near their base in front, and have rather a backward direction. 



The maxilla are strong, slightly curved, and much inclined to the 

 labium, which is short and rounded at its apex. 



The abdomen is oval, moderately convex above, and projects a little 

 over the base of the cephalothorax ; it is very thinly clothed with 

 hairs, and is of a dull pale drab-yellow colour, faintly reticulated with 

 a paler hue ; and a very small portion of its hinder extremity, inclu- 

 ding the spinners, is black. 



The female resembles the male in general characters and colours • 

 the genital aperture is small and simple in form. 



_ Adults of both sexes of this Spider were contained in the collection 

 kindly sent to me by Mr. J. H. Emerton, and were found by him at 

 Holyoke, Mass., in July 1873. It is a very pretty and distinct 

 species, the colours yellow, orange, and black, contrasting strongly 

 with each other. Its nearest congeners appear to be the Spiders°of 

 the group to which Erigone (Neriene) sylvatica (Bl.) belongs— the 

 genus Bathyphantes (Menge). 



Erigone probata, sp. n. (Plate LV. fig. 2.) 

 Adult male, length I \ lines. 



The cephalothorax is of the ordinary general form j but the occi- 

 pital region of the caput is gibbous, and the normal grooves and inden- 

 tations are fairly marked ; it is of a darkish yellow-brown colour the 

 surface appearing to be very thickly but minutely punctuose ; 'and 

 there is a single central longitudinal row of nearly erect bristly hairs 

 from the eyes to the thoracic junction. The height of the clypeus 

 exceeds half that of the facial space. 



The eyes are of moderate size, and seated on slight black tubercles • 

 they are in two transverse curved rows, the foremost row being the' 

 shortest and straightest ; those of the hind central pair are about an 

 eye s diameter distant from each other, but nearer together than 

 each is to the hind lateral on its side ; those of the fore central pair 

 are smallest of the eight, and are separated from each other by an 

 interval of about half an eye's diameter, each being separated from 

 the hind central nearest to it by the diameter of the latter, and from 

 the fore lateral on its side by the latter's diameter ; the laterals are 

 seated obliquely on a strong tubercle, and are contiguous to each other 

 The legs are rather long and tolerably strong, their relative length 

 being 4, 1, 2, 3 ; they are of a brightish yellow colour, and furnished 

 with numerous hairs and fine bristles, some of the former being erect. 

 The palpi are short ; the humeral and cubital joints rather slender • 

 the radial is strong, a little longer than the cubital, and spreads out 

 on all sides, its fore half being black and somewhat irregularly but 

 boldly notched or emarginate ; the colour of the hinder part is orange 

 red-brown, that of the cubital and humeral joints yellow, and the 

 digital, which is oval, yellow-brown ; the palpal organs are well de- 

 veloped and rather complex, with spines and corneous processes, one 

 of the latter beneath their tore extremity being furnished with a row 

 of fine comb-like teeth. 



