397 



fectly certain synonyms to it. Westring cites, though with an in- 

 terrogation, Salt, gracilis Hahn and S. agilis id., and it seems tome 

 probable that he is right in this; also C. Koch (Die Arachn., XIV, 

 p. 9) is inclined to consider S. gracilis as synonymous with his E. 

 tigrina. Blackwall has however described another and to me un- 

 known species under the name of S. gracilis Hahn (Spid. of Gr. Brit., 

 I, p. 56), and also Walckenaer has an A. gracilis (Ins. Apt., I, p. 

 423), under which he classes 5. gracilis Hahn. Simon thinks (Mo- 

 nogr. d. Attides. p. 611 (145)) that this spider of Hahn's may per- 

 haps be identical with A. saltator Sim. or S. floricola Blackw. (on 

 which see farther on), but this appears to me very improbable. — As 

 regards 5. agilis Hahn, Simon has indeed, loc. cit., p. 539 (73), 

 described a separate species under the name of A. agilis (Hahn), but 

 in his Re'vis. d. Attidse, p. 159 (35) he again expresses his doubts 

 as to whether that spider be really the same as Hahn's 5. agilis. 

 Walckenaer ') registers S. agilis Hahn under his A. callidus 1802, 

 which again is placed by Simon among the synonyms of A. erraticus 

 Sim. This however can hardly be correct: the legs of A. callidus 

 are said to be "of a pale reddish colour, like the mandibles", without 

 any dark rings being mentioned; the 3:rd pair is stated to be longer 

 than the 4:th etc. Conf. Faune Franc., Arachn., p. 55. — C. Koch 

 takes up as synonyms under his E. tigrina: ti. tigrinus Hahn = A. 

 tigrinus Walck. — also cited by Westring, though with an interroga- 

 tion — ,aS. littoralis Hahn and .4. virguhtus Walck.; but neither of 

 these appears to me to belong to the species before us. That A. erra- 

 ticus Walck. is identical with A. tigrinus (C. Koch), Westr , or S. 

 distinctus Blackw., follows beyond doubt from the detailed description 

 in the Faune Franc., loc. cit. When Blackwall denies this, he ap- 

 pears under the name of A. erraticus to mean a different species 

 from that which I, as well as Simon, consider to be the true A. 

 erraticus. Simon has himself obliged me with specimens of A. erra- 

 ticus Sim. from the neighbourhood of Paris. 



Salticus erraticus Luc. (Explor. de l'Algerie, Anim. Artie, p. 

 149, PI. 6, fig. 5) is quite a different species, and = A. Lueasii 

 Sim. (Monogr. d. Attides, p. 568 (102)), which again, according to 

 Simon (Re vis. d. Attidae, p. 183 (59)), is identical with Icelns 

 (Marpessa) notabilis C. Koch. Vid. supr., p. 387. 



1) In H. N. d. Ins. Apt., II, p. 464, Walckenaer has described under the 

 name of A. agilis a spider, which appears to be identical with Menemerus semi- 

 Kmbatus (Hahn) or Euophr. vigorata C. Koch. 



