428 



the female just before,, "Th. abbreviatus" , after, oviposition. In H. N. 

 d. Araneides, Walckenaek says of Th. onustus: "abdomine orbiculato- 



trigono, postice latiore, bituberculato" "L'abdoraen est jaune, 



court, tres-large a sa partie posterieure , qui est arrondie et a en- 

 dessus deux tubercules"; and in Tabl. d. Aran, the description of 

 the form of the abdomen is couched in the same words. (The figure 

 in H. N. d. Aran, is miserable). Compare also the characteristics 

 of Walckenaer's "2" Kace, les TrapSzoides" , in Ins. Apt., I, p. 517. 

 That the anterior side-eyes in Th. onustus are larger than the others, 

 is nowhere stated in any of Walckenaer's earlier works, and his clas- 

 sing, in Ins. Apt., loc. cit. , Th. onustus among "les Trapezoides" , 

 which are said to be distinguished by that characteristic, was without 

 a doubt caused by his believing Th. Pe'ronii Sav. et Am>. (which 

 must not be confounded with the "Th. Peronii, Var.", that we have 

 cited in the Synonyms!) to be identical with 27i. onustus: in Savi- 

 gny's figure in fact the anterior lateral eyes of this Th. Pe'ronii are 

 slightly larger than the other eyes. 



Lepechin ') has described a white crab-spider, which he found 

 in Siberia under the bark of trees, and which Walckenaer adduces 

 under his Th. onustus. Whether this spider, to which Gmelin 2 ) in 1788 

 gave the name of Aranea alba, really belong to Th. onustus, appears 

 to me very uncertain, and I have therefore not accepted the name 

 "albus" for the species before us. 



(Pag. 97.) *Philodromus variatus [=Philodromus variants Blackw. 



1837]. 



Syn.: 1837. Philodromus variatus Blackw., Charact. of a new gen., cet., in 



Lond. and Edinb. Phil. Mag., 3 Ser., X, p. 102. 



Thinking it probable, that Philodr. auro-nitens Auss. or Ph. ce- 

 spiticolis Westr. (see above, p. 266) might be identical with Ph. 

 variatus Blackw., I had sent a fullgrown male and female of the 

 former species to Mr Blackwall, asking for his opinion on it: he now 

 informs me, that "Ph. auro-nitens appears to be distinct from Ph. va- 

 riatus" , and I have therefore thought it safest to register these two 

 forms as separate species. 



1) Tagebuch der Eeise etc., I, p. 245, Tab. XX, fig. 1. 



2) Linnjei Syst. Nat., Ed. 13, I, Pars V, p. 2961. 



