134 



of copulation in typical specimens of both Neriene rubripes and 

 Bathyphantes inermis, kindly communicated to me by Cambridge and 

 Menge, have convinced me that these species are identical with the 

 E. erythrocephala of Westring and C. Koch, though the palpi of N. 

 rubripes or Bathyph. inermis are longer and the above mentioned tooth 

 on the mandibles considerably stronger than in the latter and espe- 

 cially than in Swedish specimens. — Whether the spider described by 

 C. Koch in Vol. VIII of Die Arachn. as M. erythrocephalus be really 

 the same, that was first made known to the public under that name 

 in Vol. Ill of the same work, is doubted by Westring, and is a 

 question not easy to decide with certainty. It is very possible that 

 under the specific name erythrocephalus, C. Koch may have there con- 

 founded two or more nearly allied species. Of the same species, E. 

 rufa (Reuss), nob., the female of which Westring has described under 

 the name of E. erythrocephala, while he erroneously assigned its 3 

 to his E. robusta (see that species above), Dr L. Koch has however 

 sent me specimens of both sexes under the name of E. erythrocephala 

 (C. Koch). — Ohlert's Micryph. laminatus is clearly the female of 

 this species ; his M. ruficephalus $ is probably the male of the same. 

 His description of n M. erythrocephalus" seems to be founded on C. 

 Koch's description and figures only. {Micryph. laminatus C. Koch or 

 Argus laminatus Walck. is undoubtedly only a variety of Linyphia 

 dorsalis (Reuss), Westr. , on which vid. sup., p. 73). — Walckenaer 

 erroneously classes Micryph. erythrocephalus C. Koch under his Argus 

 graminicolis '). 



Theridium bicolor Hahn 2 ) belongs unquestionably to this or 

 some nearly allied species , but to which , it is not possible with 

 certainty to decide. — Neriene bicolor Blackw. is a Linyphia: vid. 

 sup., p. 64, L. comata Westr. 



(Pag. 273 ) 41. E. silvestris [= Erigone silvaticq (Blackw.) 1841]. 



Syn.: 1841. Neriene sylvatica Blackw., The differ, in the number of eyes 



etc., p. 644. 



1864. „ „ id. , Spid. of Gr. Brit., II, p. 254. 



1866. Bathyphantes setipalpus Menge, Preuss. Spinn. , I, p. 124, PI. 



23, tab, 48 (saltern $). 



1) Hist. Nat. d. Ins. Apt, II, p. 352. 



2) Die Arachn., I, p. 91, Taf. XXII, fig. 69. 



