70 



Menge considers this species, which I received from him under 

 the name of Bathyphantes terricolus, as identical with Lin. terricola 

 C. Koch. On this subject vid. sup.', p. 58, Lin. tenebricola Westb. 

 — Bathyphantes zebrinus Menge, which Menge had the kindness to 

 send me, is nearly related to L. nigrina, but these species may be 

 easily distinguished even by the different armature of the legs. Bath, 

 zebrinus has on the thighs one spine on the first pair only, and 

 none on the succeeding pairs, as also one spine on the metatarsi, 

 at least those of the posterior legs. Lin. nigrina has three spines 

 on the thighs of the 1 st pair, and one on the thighs of the three 

 posterior pairs of legs , but has no spine on the metatarsi. 



(Pag. 134.) 25. L. COncolor [= Linyphiu concolor Eeuss 1834]. 



Syn.: 1834. Linyphia concolor Reuss, Zool. Misc., Arachn., p. 261 (267), Taf. 



XVIII, fig. 3. 



1836. Theridiuh filipes Blackw., Charact. of some undescr. spec, of Aran., 

 in Lond. and Edinb. PHI. Mag., 3 Ser., VIII, p.484. 

 1856. Lintphia ' ,, Thor., Bee. crit., p. 108. 

 1864. Therididm „ Blackw., Spid. of Gr. Brit., LT, p. 206, PI. XVI, 



fig. 136. 



1866. Stylophora concolor Menge, Preuss. Spinn., I, p. 128, PI. 24, tab. 51. 



1867. Micryphantes grandimanus Ohl., Aran. d. Prov. Preuss., p. 77. 



The name given by Reuss was published before Blackw all's, 

 and has accordingly the right of priority. — This species is refer- 

 red by Blackwall to the genus Theridiuni , on the ground of the 

 form of the maxillae and the relative lengths of the legs, but, as it 

 seems to us, without sufficient reason. The maxillae have the same 

 form as in e. g. Linyphia frenata, which is by Blackwall himself 

 referred to Linyphia, and they are not more inclined to the labium 

 than those of that species: the relative length of the legs is not 

 constant in Thendium Blackw., and is also variable in Linyphia, at 

 least in the compass we think it necessary to give to that genus 

 (Conf. Thor. , On Eur. Spid., p. 82 et seq.). — Ohlert's above cited sy- 

 nonym is perfectly certain, and rests on the comparison of specimens 

 of both sexes, which he sent to me. — "Walckenaer (Ins. Apt., II, 

 p. 351) inserts TAn. concolor Reuss among the synonyms of his 

 Argus graminicolens (Erigone graminicola (Sund.) Westr.), which is 

 altogether erroneous. 



