96 T. THORELL, 
According to DUFOUR !) the claws of his L. (Ther.) lugubris — not 
to be confounded with ZL. (Ther.) lugubris MOTSCHOULSKY ?) — are destitute of 
teeth. \WALCKENAER says ?) that the inferior claw is toothless in the genus 
Lathrodectus in general, and that in L. 13-guttatus all the claws on the 
posterior legs are so. All these statements, as VAN HASSELT *) suspected, 
depend upon some mistake, probably on the claw-teeth in the specimens 
examined having been broken off. In a LL. lugubris (DUF.) from Spain I have 
found all the claws evidently pectinated. The superior tarsal claws are in this 
species short and strong, regularly and pretty much bent, with (on the first 
pair of legs) about 8 long, somewhat pointed comb-teeth, directed somewhat 
forwards; the inferior claw is considerably smaller, with two short, blunt 
teeth connected at the base, of which the foremost is much coarser but not 
longer than the other. On the 4" pair the teeth are not quite so many; the 
inferior claw there appears to me to show a rudiment of a third tooth (?). 
Gen. 17. EURYOPIS (MENGE). 1868. 
Deriv.: evovs, wide, broad; ww, face. 
Syn.: 1836. Micryphantes C. Koch, Die Arachn., III, (ad part.:) p. 67. 
1847. Argus Warck., H. N. d. Ins. Apt., IV, (ad part.:) p. 501. 
1861. Theridium Wesrr., Aran. Suec., p. 151 (ad partem). 
1864. a Brackw., Spid. of Gr. Brit., II, p. 175 (ad partem). 
1864. Micryphantes Srw., H. N. d. Araignées, p. 193 (ad partem). 
1868. Asagena ID., ibid., p. 162 (ad partem). 
1868. Euryopis MENGE, Preuss. Spinn., II, p. 174 (ad partem). 
Type: Æuryopis flavo-maculata (C. Koch). 
Kocx himself, in the passage above referred to, has remarked, that 
his Micryph. flavo-maculatus can hardly be suffered to remain within the ge- 
nus Micryphantes. WESTRING, BLACKWALL and OHLERT accordingly detach 
it therefrom: they reckon this spider as a Theridium. MENGE, on the other 
hand, and, I think, with reason, has formed for it a distinct genus, Zuryo- 
pis. To this genus he also assigns, though not without some doubt, Ther. 
triste HAHN, which seems to be by no means so happy an arrangement. 
We refer this species to Theridium sensu strictiori (Steatoda MENGE), although 
1) Deser. de six Arachn. nouv., p. 356. 
2) Note sur deux Araignées venim., p. 290. 
3) Hist. Nat. d. Ins. Apt., I, p. 644—646. 
4) Studien ov. de z. g. Curagaosche Oranjespin, p. 65. 
