359

(probably Q ad.!) of his "P. tyroliensis ", which however, in conformitywith "P. semirufus" and "P. helveticus” , is stated to have the posteriorpart of the upper side of the abdomen of a uniform blackish colour.

My specimens of ” Pyrod. formicarius Sim.” agree perfectly, asfar as the colour of the abdomen is concerned, with Walckenaer ’sfigure of his Attus formicarius in Faune Frarnj., Arachn. The male’smandibles are however not, as he states, reddish , but blackish green;in his A. formicoides , which undoubtedly, as Simon supposes, is notspecifically 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 withC. Koch’s P. helveticus than with his P. semirufus. If these twoKochian species are really different, which to me does not appearprobable, then it is unquestionably P. helveticus and not P. semirufus ,that is identical with "Pyrod. formicarius ”, for the cT of this specieshas only one clearly developed tooth on the inside of the claw of themandible, just like P. helveticus (see Koch’s fig. 1094), not two, asis said to be the case in P. semirufus. What C. Koch looks uponas a $ jun. of his P. helveticus , is probably a 2 ad. of that species.

Simon states, that Cambridge has compared the original specimenof 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 , andwhich Blackwall and Westring, as also myself in Bee. crit. Aran.,p. 103, erroneously referred to the true S. formicarius (De Geer).

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

pessa (C. Koch) 1846 + Ballus C. Koch1835 + Dendryphantes (C. Koch) 1837+ Attus (Walck.) 1805 + JElurops Thor.(1870) + Fttenus (Sim.) 1868 + PhilamsThor. 1870 + Heliophanus C. Koch1833 + Euophrys (C. Koch) 1835].

Concerning these genera, see Thor., On Europ. Spid., p. 206—208, 210—219, as also the present work p. 355.