172 



versally depressed, and are so curved that they leave between them 

 a long narrow oval interval ; the palpi are longer and slenderer than 

 in M: fulgens, the tibial joint more than double as long as it is 

 broad at the base, with two small teeth behind each other at the apex, 

 on the outer side; the patellar and tibial joints are together longer 

 than, or at least as long as, the mandibles. The abdomen has across 

 the middle a deep depression (as it also the case in M. exilis Ca- 

 nestr. which seems to be closely related to M. formicaria). That 

 it is this species, M. myrmecoides Ohl., that Sundevall loc. cit. has 

 described under the name of Clubiona formicaria, is evident from e. 

 g. the following expression in his description of <J: "Thorax antice 

 non angustatus, duplo longior quam latior; [palporum] pars tibialis 

 dentibus 2 armata" , which is evidently inapplicable to M. fidgens, 

 to which, among others, Westring and L. Koch have referred CI. for- 

 micaria Sund. (Clubiona formicaria is wanting in Sundevall's collec- 

 tion of types). It is clear that the specific name formicaria must be 

 restored to M. myrmecoides Ohl. ; for Drassus formicarius Lucas 2 ) , 

 or M. formicaria L. Koch 3 ), we propose the appellation Micaria 

 Ducasii. 



Drassus fastuosus Walck. is not a spider easy to identify. 

 Walckenaer in Vol. I of H. N. d. Ins. Apt. takes up as a synonym to 

 it C. Koch's Macaria fastuosa , but in Vol. II, p. 487 — 488, of the 

 same work he makes M. fastuosa C. Koch identical with his D. fid- 

 gens, and M. fulgens C. Koch with his D. fastuosus. The passage 

 in Walckenaer last referred to, is however very obscure; perhaps 

 he means Drassus lugubris (probably the same as M. pulicaria (Sxjnd.), 

 Westr.) when he says D. fastuosus! C. Koch himself has M. fulgens 

 and M. fastuosa as different species; his description and figure of 

 the former I have not seen ; the latter seems to me to be a Micaria 

 fulgens Westr. et L. Koch, to which both these C. Koch's species 

 are referred by L. Koch. Of the Mic. fulgens of L. Koch and the 

 Mac. fulgens of Ohlert , these authors have kindly sent me specimens. 



Drassus dives Luc. 4 ) and Dr. fastuosus Luc. 5 ), which Walcke- 

 naer (loc. cit., IV, p. 448) classes, the first under his D. fulgens, 



1) Nuovi Aracn. Ital., in Annuario della Soc. dei Nat. in Modena, HI, p. 

 192; Canestr. et Pav., Aran. Ital, p. 111. 



2) Explor. de l'Algerie, Arachn., p. 228, PI. 14, fig. 4. 



3) Die Arachn.-fam. d. Drassiden, p. 69, Taf. Ill, figg. 49-51. 



4) Explor. de l'Algerie, Arachn., p. 220, PI. 13, fig. 9. 



5) Ibid., p. 221, PI. 13, fig. 10. 



