ON EUROPEAN SPIDERS. 209 
1833. Salticus SUND., Sv. Spindl. Beskr., zm Vet.-Akad. Handl. f. 1832, jay ISIS). 
+1837. Pyrophorus C. Koc, Uebers. d. Arachn.-Syst., 1, p. 29. 
1861. Salticus Wesrr., Aran. Suec., p. 543. 
1861. 3 Brackw., Spid. of Gr. Brit., I, p. 47 (ad partem). 
1864. + [Saltica]: sub-gen. Pyrophorus [Pyrophora] Sım., H. N. d. Araignées, 
p. 336. 
1868. Pyrophorus Srw., Monogr. d. espèces europ. de la fam. d. Attides, p. 6 (16). 
1869. Pyroderes 1D., ibid., p. 248 (714). 
Type: Salticus formicarius (DE GEER). 
When SUNDEVALL in 1833 (loc. cit.) divided Salticus LATR. or Attus 
WALCK. into two genera, Salticus and Attus, it was for a species of the 
genus afterwards by C. Kocu called Pyrophorus, that he preserved the for- 
mer, older name, and not for a Salticus C. Kocu, which genus was to him 
unknown. This appears immediately from the description of SUNDEVALL’S 
Salticus formicarius, the c? of which has the mandibles "fere porrecte, supra 
plane” ete. The very generic diagnosis of Salticus SUND. ("Pars cepha- 
lica abrupte altior quam thoracica;...oculi...aream quadratam ... delinean- 
ies") is suitable only to Pyrophorus, and not to Salticus Kocu, and this last 
genus cannot therefore be considered as corresponding to Salticus SUND. 
even ad partem. As the name Salticus came by a mistake only — Koch 
erroneously supposed his Salticus formicarius to be identical with the spe- 
cies, to which SUNDEVALL had assigned that name — to be applied by 
KocH, and after him by OHLERT and others, to an entirely different genus 
from that so denominated by SUNDEVALL, whereas the real Salticus (LATR.) 
SUND. was by Koch rechristened Pyrophorus, we must of course restore 
to that genus its original name. Pyrophorus is moreover, as SIMON has 
already remarked, the universally received name given by ILLIGER in 1809 
to the so called " American fire-flies", belonging to the Elaterida (Coleopt.). 
The, genus Salticus KocH we call Leptorchestes. 
The tarsal claws of Salticus formicarius are of the usual form, long 
and slender; on the 4" pair the inner claw has about 8 and the outer about 
5 very short, thick, blunt teeth. "The hairs in the claw-tuft are dilated 
spade-wise at the apex. 
Gen. 2. LEPTORCHESTES wn. 
Deriv.: Aezróc, slender; doynorÿs, dancer. 
Syn.: 1832. Synemosyna Henrz, On North Amer. Spid., p. 108 (ad partem). 
1836. Attus Luc., Attus venator, in Gu£m., Mag. de Zool., 6° Année, Cl. VIII, Pl. 15. 
Nova Acta Reg. Soc. Sc. Ups. Ser. III. 27 
