some obscure British Spiders. 87 



constant and reliable seems to be that afforded by the relative 

 position of the eyes and the height of the clypeus. 



The two specimens from which the characters are sketched 

 are from the extreme opposite ends of a long series. 



Tmeticus bicolor, Bl. (PI. II. fig. V. 1, 2.) 



Neriene bicolor, Blackw. 



Linyphia bicolor, Th. 



Linyphia bicolor, Cambr. Spid. of Dorset, p. 206. 



Size much larger. 



Eyes of posterior row separated by a full diameter from each 

 other. 



Clypeus higher than the width of the ocular area. 



Tibice of first two pair of legs bearing beneath two rows of 

 £\ % om four to seven spines. 



Metatarsi of third and fourth pair of legs bearing one dorsal 

 aud two lateral spines. 



Tmeticus concinnus, Th. (PI. II. fig. VI.) 

 Linyphia concinnus, Th. 



Size much smaller. 



Eyes of posterior row separated by only one half the 

 diameter of one of them. 



Clypeus scarcely as high as the width of the ocular area. 



Tibice of first two pair of legs bearing a double row of from 

 two to four spines. 



Metatarsi of third and fourth pairs of legs bearing only one 

 spine on the upperside. 



List of Spiders described. 



Leptyphantes zebrinus, Menge, p. 74. 

 Leptyphantes tenebricola, Wider., p. 76. 

 Leptyphantes pinicola, Simon, p. 78. 

 Tmeticus niyer, F. Cambr., p. 80. 

 Tmeticus bicolor, Bl., p. 87. 

 Tmeticus concinnus, Th., p. 87. 

 Microneta sublimis, Cambr. p, 83. 



EXPLANATION OF PLATE II. 



Fiy. I. Leptyphantes zebrinus, Menge. 



1. Profile view of right palpus of the male, a, falciform process; b, 



lateral stylum. 



2. Profile view of epigyne of female. 



3. View of the caput, eyes, and clypeus from in front. 



4. Profile view of cephalothorax ; legs and palpi truncated. 



