43 



As a third European species Walckenaer ') describes T. gibbosa . 

 a form unknown to me. He looks upon it as identical with T. gibba 

 C. Koch (which however is probably nothing more than a variety 

 of T. externa), and even forms for it a separate "famille" of the ge- 

 nus, "les Trigones (Trigones)," which is said to be distinguished 

 from the others by having the mandibles "peu proe'minentes , peu 

 allongees, cylindriques," and the "abdomen tres-renfle a la partie 

 anterieure , peu allonge." These distinctive marks do not prove that 

 T. qibbosa is not a young T. extensa, but Walckenaer speaks of 

 full-grown specimens, which makes the identity of these species very 

 problematical. He says he once found a female T. gibbosa "dans une 

 petite cavite" beneath a stone and enclosed in a white cocoon which 

 she had spun, and he supposes himself thereby to have demonstra- 

 ted a radical difference of economy between it and T. externa. The 

 description is very short and imperfect. 



The fourth European species, T. epeirides Walck. (Hist. Nat. 

 d. Ins. Apt., II, p. 223), is also unknown to me. 



(Pag. 87.) VI. MITHRAS [= Hyptiotes Walck. 1837]. 



Vid. Thor., On Eur. Spid., p. 67. 



(Pag. 88.) 1. M. paradoxus [= Hyptiotes paradoxus (C. Koch) 



1834]. 



Sun.: 1834. Mithras 2 ) paradoxus C.KocH,mHERR.-ScH^FF.,Deutschl.Ins.,123,9. 

 1837. Scytodes mithras Walck., H. N. d. Ins. Apt., I, p. 275; Atlas, PI. 



22, figg. F2D, 2 B. 

 1837. Hyptiotes [Uptiotes] anceps id., ibid., p. 277; Atlas, PI. 7, figg. 



FID, Id, 1A, IB. 

 1837. „ ,, anceps Schreberi id., ibid., p. 278; Atlas, PI. 



7, figg. F 2 D, 2d, 2 c, 2 k. 

 1845. Mithras undulatus C. Koch , Die Arachn., XII, p. 96, Taf. CCCCXVIII, 



fig. 1023. 



1869. Hyptiotes paradoxus Thor., On Eur. Spid., p. 67. 



Mithras undulatus C. Koch is certainly only a variety of M. or 

 Hyptiotes paradoxus. On the synonyms etc. of this species see also 

 Thor., Till kanned. om slagtena Mithras och Uloborus, in Ofversigt 



1) Sur une nouv. fam. du genre Tetiagnatha , in Ann. de la Soc. Ent. de 

 France, 2 Ser., V, Bull., p. xli. 



2) Mithras Hubn. [Lepidopt.] 1816. — Mythras Halid. [Hynienopt.] 1829. 



