F. P. SMITH ON SOME BRITISH SPIDERS TAKEN IN 1908. 329 



Spines on tibiae strong or moderately so, at any 

 rate longer than diameter of joint. Falces with 

 well-marked transverse striae on outer side . . (2). 



(2) Tibia I. with two spines above and one on inner side. 

 These spines moderately strong, somewhat longer 

 than diameter of joint .... Leptorhoptrum. 

 Tibia i. with two spines above, but without any on 

 inner side. Spines strong and about twice as long 

 as the diameter of the joint .... Lessertia. 



(b) Males only. 



(1) Falces each furnished with a powerful tooth-like 



projection in front, bearing at its extremity and 

 also on its side a strong seta . . . (2). 



Falces without such projections. Tibia of palpus slightly 



longer than patella and than tarsus . Leptorhoptr/'m. 



(2) Patella of palpus abnormally long, furnished, below 



its anterior extremity, with a conical projection. 

 Tibia as long as patella. Tarsus about half as long 

 as tibia. In breadth patella, tibia, and tarsus 

 practically equal. Maxillae produced conically at 

 anterior exterior angle, also greatly produced at 

 point of insertion of palpus (somewhat as in 

 Erigone) ....... Tmeticus. 



Patella of palpus normal. Tibia considerably longer 

 than patella. Tarsus at least as long as tibia. 

 Tarsus broader than the tibia which is broader 

 than the patella. Maxillae furnished on inferior 

 surface with a strong conical projection, otherwise 

 normal ........ Lessertia. 



Lessertia simplex (F. Camb.), 1892. 



1892. Tmeticus simplex, F. Camb., Ann. Mag. X. H. 

 1900. ,, ,, Camb., List Brit. Lrish Spiel. 



Specimens of this local rarity were kindly sent to me by 

 Mr. G. P. Deeley from Brierley Hill, Staffs. They were taken 

 in a dry filter-bed in company with Porrhomma microphthalmam. 



