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araneologists, to distinguish them satisfactorily by these characters 

 alone, have totally failed. The only tolerably constant difference 

 in colours and markings that I have boon able myself to observe 

 is the greater distinctness of tho pale spots betwoen the termina- 

 tions of the angular bars on tho postorior half of the abdomen ; 

 these increase in size and distinctness near the spinners, often 

 becoming confluent in the femalo, and thus so much the more 

 conspicuous. The male also shows tho same character, though 

 in a less degree. The adults, howovor, may be separated without 

 difficulty. The male, by the distinctly, smaller, and narrower 

 digital joints of tho palpi ; and by the central obtuse process of 

 the palpal organs being less robust and considerably longer 

 than that of Lycosa palustris. The femalo may bo distinguished 

 by the smaller area of the genital aperture, which is less 

 quadrate, being considerably longer than broad. 



This spider occurs in the same localities as those mentioned 

 for Lycosa palustris, and in about similar number. In the month 

 of June, 1877, however, I met with the present spider (Lycosa 

 monticola) in groat abundance on Muston Down (between 

 Blox worth and Blandford), and, aftor a whole day's collecting over 

 a large area of that district, not a single example of Lycosa 

 palustris was found. Probably tho hoadquarters of those two 

 spiders are in distinct situations, stragglers from each intermixing 

 in the intervening localities. I have, however, not yet found any 

 such headquartors for Lycosa palustris. 



There is no doubt but that both species are included under tho 

 Lycosa exigua of Blackwall, as both wero, some years ago, sent 

 to me from North Wales, by Mr. Blackwall, under that name. 



Lycosa monticola occurs pretty generally throughout England, 

 as well as in Scotland. 



