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miwda): the anterior tibiae have 4 or 5 spines, the posterior only 

 two; the anterior metatarsi have near the base 2 — 3 spines, the po- 

 sterior only one. In miwda, all the metatarsi have three, or at least 

 two spines. In form and colour there is no other easily seen differ- 

 ences between the two species, unless it be that the dark rings on 

 the legs are less distinct in L. leprosa than in L. miwda. 



Sukdevall was, as we have already (under the head of the pre- 

 ceding species, L. crypticola Weste.) remarked, acquainted with L. 

 mimda, which he considered as a variety of his L. nebulosa. 



(Pag. 116.) 14. L. tenebricola [= Linyphia alacris Blackw. 1853]. 



Syn.: 91845. Linyphia terricola C. Koch, Die Arachn.,XII,p.l25,Taf.CCCCXXV, 



figg. 1047, 1048 (ad partem). 

 1853. „ alacris Blackw., Descr. of some newly disc. spec, of Aran., 

 in Ann. and Mag. of Nat. Hist., 2 Ser., XI, p. 20. 

 1856. ,, pygilea Thor., Eec. crit., p. 108. 



1864. „ ALACRIS Blackw. , Spid. of Gr. Brit., II, p. 235, PI. XVII, 



fig. 157. 



I cannot think that the species Westring has described under 

 this name, is the right L. tenebricola Keuss. The abdomen of that 

 spider is distinguished by "zwei rundlichen weissen Flechen auf der 

 hintern Halfte der Seite," which spots in Westring's L. tenebricola 

 are replaced by a long, usually unbroken, light line along the side 

 of the abdomen. The above-cited description of these spots, as well 

 as of the rest of the marking in L. tenebricola Keuss, evidently de- 

 monstrates that that spider is identical with the species called by 

 Westring L. pygmceu, and which I, in my Eec. crit. (p. 108), have 

 described under the name of L. arcwda. On the other hand C. Koch's 

 description of L. terricola corresponds so well with L. tenebricola 

 Westr. , that I should not have hesitated to adopt that name for 

 this latter, if totally different species had not by Blackwall, Ohlert 

 and Menge been described as n L. terricola Koch." In Kocb's figures (1. c.) 

 the colour of the cephalothorax is darker than in L. tenebricola Westr., 

 but in the description it is stated to be yellowish brown ("gelb-braun"), 

 which suits that species. The back central line or band along the 

 anterior part of the back of the abdomen, which unites the fore- 

 most of the triangular, oblique, black spots ou either side, which 

 farther back converge to transversal angular marks, appears to be a 

 tolerably constant feature in this species: it is mentioned in Koch's 



8 



