192 Mr. J. Blackwall's Characters of some 



cesses, or apophyses, on the upper part, near its articulation 

 with the fourth joint ; it is convex externally, concave within, 

 comprising the sexual organs, which are of a red-brown co- 

 lour. 



I first observed this spider in little frequented rooms in 

 Crumpsall Hall ; it does not confine itself, however, to the in- 

 terior of buildings, but may frequently be found on trees and 

 shrubs, particularly such as grow against walls. In the month 

 of September the female deposits thirty or forty spherical 

 eggs, of a yellowish-white colour, in a cocoon of white silk, of 

 a slight texture, and subglobose form, measuring about £th of 

 an inch in diameter. 



Linyphia luteola. 



This spider resembles Linyphia minuta in the form of the 

 cephalothorax, except that the anterior part, on which the 

 eyes are seated, is more prominent and acute ; it is glabrous, 

 and of a pale yellowish-brown colour, with black margins and 

 a slender band of the same hue along the medial line. The 

 eyes are placed on black spots, their arrangement and relative 

 size being the same as in Linyphia minuta. The parallelism 

 between the two species holds good also as regards the struc- 

 ture of the mandibles, the maxillae, the lip, and the pectus. 

 These parts are of the same colour as the ground of the ce- 

 phalothorax. The legs are long and slender, the palpi rather 

 short; both are provided with claws and delicate spines simi- 

 lar in structure to those of Linyphia minuta ; their colour is 

 a uniform pale yellowish-brown. The first pair of legs is the 

 longest, then the second, the third pair being the shortest. 

 Abdomen oval, compressed, remarkably convex above, pro- 

 jecting over the base of the cephalothorax ; its colour is pale 

 yellow, with minute white spots on the upper part ; the sides 

 are obscurely marked with oblique lines of a blackish hue, 

 and above the spinners are several of a similar tint and an 

 angular form. Plates of the spiracles yellow. In some indi- 

 viduals scarcely a trace of the black lines can be perceived. 



Length, from the anterior part of the cephalothorax to the 

 extremity of the abdomen, j-th of an inch ; length of the cepha- 

 lothorax T ^ ; breadth -^ ; breadth of the abdomen y 1 ^ ; length 

 of an anterior leg J. 



The male is smaller and more slender than the female, but 

 the cephalothorax is longer, measuring J^th of an inch ; it is 

 very prominent and acute before, and is furnished with nu- 

 merous strong, black bristles, particularly at the apex. The 

 legs also are more elongated, an anterior one measuring ^ths 

 of an inch. The maxillae are exceedingly convex externally, 



