359 



(probably Q ad.!) of his n P. tyroliensis", which however, in conformity 

 with "P. semirufus" and "P. helveticus" , is stated to have the posterior 

 part of the upper side of the abdomen of a uniform blackish colour. 



My specimens of "Pyrod. formicarius Sim." agree perfectly, as 

 far as the colour of the abdomen is concerned, with Walckenaer's 

 figure of his Attus formicarius in Faune Franc., Arachn. The male's 

 mandibles are however not, as he states, reddish, but blackish green; 

 in his A. formicoides , which undoubtedly, as Simon supposes, is not 

 specifically different from A. formicarius Walck., they are said to be 

 "d'un vert cuivre luisant", so that their colour appears to vary con- 

 siderably. The French specimens in my collection agree better with 

 C. Koch's P. helveticus than with his P. semirufus. If these two 

 Kochian species are really different, which to me does not appear 

 probable, then it is unquestionably P. helveticus and not P. semirufus, 

 that is identical with "Pyrod. forinicarius" , for the cf of this species 

 has only one clearly developed tooth on the inside of the claw of the 

 mandible, just like P. helveticus (see Koch's fig. 1094), not tivo, as 

 is said to be the case in P. semirufus. What C. Koch looks upon 

 as a S jnn. of his P. helveticus, is probably a $ ad. of that species. 



Simon states, that Cambridge has compared the original specimen 

 of Blackwall's Salt, formicarius with French specimens of Pyrod. 

 formicarius Sim., and found them to be identical. Blackwall's de- 

 scription of the abdomen however does not so well suit S. formicarius 

 (De Geer) as the spider, which C. Koch calls S. formicarius, and 

 which Blackwall and Westring, as also myself in Rec. crit. Aran., 

 p. 103, erroneously referred to the true «S. formicarius (De Geer). 



(Pag. 543.) II. ATTUS [= Epiblemum (Hentz) 1832 + Mnr- 



pesstt (C. Koch) 1846 + Bait us C. Koch 

 1835 + Dendrypfiantes (C. Koch) 1837 

 + Attus (Walck.) 1805 + sEhirops Thok. 

 (1870) + menus (Sim.) 1868 + Philteus 

 Thor. 1870 + Hetiophanus C. Koch 

 1833 + Euop/irys (C. Koch) 1835]. 



Concerning these genera, see Thor., On Europ. Spid., p. 206 — 

 208, 210—219, as also the present work p. 355. 



