240 



has cited under his Thorii. cristatus. I also suspect, that Thom. 

 asper Lucas 1 ) and Xyst. grcecus C. Koch 2 ), inserted by Simon 3 ) among 

 the synonyms of X cristatus, are separate and distinct species. — 

 Thom. lateralis Hahn 4 ), considered by C. Koch as a variety of X. 

 audax (cristatus), is in my opinion the same as X. lanio C. Koch: 

 see above p. 232. 



As regards the synonyms of X. Kocldi or viaticus, it is prob- 

 able, though by no means certain, that the Ar., llwm. or Xyst. 

 viaticus of the generality of German writers, as Fabricitjs 5 ), Hahn 6 ), 

 Peach 7 ) etc., is, at least ad partem, to be referred to that species. 

 Ohlert has confounded it with X. impavidus Thok. under the name 

 of X lanio 6 ): see above pag. 233; X viaticus Ohl. 9 ) is a least ad 

 part. = X. lateralis (Hahn) or X lanio C. et L. Koch, as appears from 

 the specimens with which he has favoured me. X Kocldi is doubtless 

 one of the species, which Walckenaer has confounded under the name 

 of Thom. cristatus 10 ). — Aran. Kleinii Scop., 1 ') Ar. liturata Fabr. l2 ), 

 Ar. fasciata Vill. 13 ) or Ar. horticola Olit. 14 ), Ar. audax Schbanck 15 ), 

 Ar. subreptans Strack 16 ) etc. undoubtedly belong to either X Kochii, 

 cristatus or some nearly related species, but to which, it is probably 

 impossible with any degree of certainty to determine. 



We proceed to give a description of the organs of copulation 

 in the two species , the synonyms of which we have been endeavouring 

 to illustrate. 



1. X cristatus. The bulbus genitalis has on its under side, 

 at the base, two processes, of which the first, situated nearest the 



1) Barker-Webb and Berthelot, H. N. d. lies Canaries, Entom., Arachn., 

 p. 32, PI. 7, fig. 1. 



2) Die Arachn., IV, p. 65, Tab. CXXXI, fig. 291. 



3) H. N. d. Araignees, p. 523. 



4) Die Arachn., I, p. 40, Tab. X, fig. 31. 



5) Spec. Ins., I, p. 538; Ent. Syst., H, p. 411. 



6) Die Arachn., I, p. 35, Tab. X, fig. 29. 



7) Monogr. d. Thom. v. Prag, p. 613 (17). 



8) Arachnol. Stud., p. 7; Aran. d. Prov. Preuss. , p. 115. 



9) Aran. d. Prov. Preuss., p. 113. 



10) H. N. d. Ins. Apt., I, p. 521. 



11) Ent. Cam., p. 398. 



12) Ent. Syst., II, p. 416. 



13) Linn. Ent, IV, p. 125. 

 U) Encycl. Meth., IV, p. 225. 



15) Fauna Boica, III, I, p. 235. 



16) Ueb. d. Soramerflug etc. p. 53-56, fig. B. 



