363 



The south-European 0. tenerus Sim. (= Salticus mutabilis Luc. 1 ), 

 according to a communication from Mr Simon) is also a species dif- 

 ferent from, though nearly related to the German and Swedish E. 

 tenerum (C. Koch), n. I have myself captured a cf ad. at Monaco, 

 and have received specimens of it from Simon himself. On this species 

 see more p. 366. 



According to Blackwall *), his Salt, scenicus is also met with 

 in North-America, in Canada. It is probably this species, that Hentz 

 calls Epiblemum faustnm, and which, according to him, is common 

 at Cambridge, Massachusetts. 



Whether Callietkera alpina from Chamouny, described by Giebel 

 (Z. Schweitzer. Spinnenfauna, p. 441), and which is said to have 

 the "habitus of C. histrionica" , be really a separate species, or belong 

 to one or other of the species here under discussion, Giebel's short 

 description does not enable me to decide. 3 ) 



As regards the synonyms of the older authors, it is in the 

 first place clear that Clerck had before him C. histrionica, and con- 

 sidered it as the chief form of his Ar. scenicus, for he says that the 

 cephalothorax has three white patches above, n situated almost in a 

 triangle" (according to the Swedish text); but he continues: "nonmdlis 

 loco macularum stella vel etiam duabus lineolis decussatim, plerisque 

 tamen obscure et septuose" (in the Swedish, "matt och otydligf, 

 faintly and indistinctly), which refers either to the variety which C. 

 Koch calls C. scenica, or else to his C. zebranea (E. cingulatum), or 

 perhaps to both these forms. Clerck's figure seems to me most 

 to resemble "C. histrionica". 



De Geer in his Ar. albo-fasciata has evidently had in view 

 principally E. scenicum, and especially the form C. histrionica, but 

 he had probably also seen the here in Upsala common E. cingulatum, 

 which one of his figures (fig. 9) most resembles. The Ar. scenica of 

 Linn^us, and indeed of the older naturalists in general, not excepting 

 0. Fabricius in his Fauna Groenl., p. 227, probably indicates E. sce- 

 nicum, though one or other of the two closely allied species may 

 have sometimes been confounded with it. 



1) Explor. de 1' Alger., Arachn., p. 168, PI. VIII, fig. 8. 



2) Notes of Spid. capt. by Potter in Canada, in Ann. and Mag. of Nat. Hist., 

 2 Ser., XVII, p. 34. 



3) I have applied by letter to Prof. Giebel, requesting to borrow for exami- 

 nation the spiders described by him in the paper referred to; but, as he has not 

 honoured my letters witli a reply, I presume they have not reached him. 



