BRITISH SPIDERS OF THE GENUS MICRONETA 1 25 



The falces of the male are distinctly but slightly divergent, 

 those of the females obliquely truncate. The whole spider is 

 rather robust and bulky, a female measuring i - 62 mm. in 

 total length. 



In the male sex the lamella characteristica easily separates 

 the species from the other British Micronetoids. In the 

 female the vulva is not unlike that of several of the Agynetcs, 

 but the generic characters, and especially the great size and 

 inequality of the posterior eyes, easily distinguish the species. 



Those who are interested in the formation of new genera 

 will have no difficulty in creating one for this species. 



S. innotabilis Camb. occurs amongst moss and dead leaves 

 on the ground, but is most commonly found in the crevices of 

 the bark of standing trees, of which the larch and the lime are 

 already recorded as providing its habitation. 



In this country it ranges from Dorset to Perth, and has 

 occurred in several Irish localities. 



Genus II. MICRYPHANTES 1 C. L. Koch, 1833. 



Metatarsi i. and ii. without spines. 



Long sensory setae present on the first three pairs of meta- 

 tarsi between the middle and the base of each above. Such 

 are absent on the last pair. 



Falces very dissimilar in the two sexes. In the male they 

 are extremely divergent, attenuated towards the apex, and 

 hollowed out on the innerside. In the female they are merely 

 obliquely truncated. On the anterior border of the fang 

 groove each falx bears three, four, or five large teeth, 

 rather widely separated. The posterior border also bears 

 three, four, or five teeth, but these are smaller and more 

 closely grouped. Individual and specific variation in the 

 number of the teeth occurs within the above limits. 



1 I am aware that there is some doubt whether this name ought really 

 to be applied to this genus, but Kulczynski has already so used it in the 

 "Aranese Hungariae." 



