99 



1867. Erigone dentipalpa Ohl., Aran. d. Prov. Preuss., p. 50 (ad partem). 



1868. „ longipalpis Menge, Preuss. Spins., II, p. 196, PI. 37, 



tab. 93. 



It is difficult rightly to distribute the synonyms of this and 

 the two following species, which have by several writers manifestly 

 been confounded. It is probable that all three forms were already 

 known to Sundevall, and that his Lin. longipalpis Var. /?, which is 

 said to be smaller than the principal form , and to be found "in gra- 

 mine", includes not only E. dentipalpis Westr., but also E. vaga- 

 bunda id., which is at least as common in this country as either 

 of the other two species. As regards Reuss' and C. Koch's synonyms 

 for the spiders in question, see the next species. Walckenaer's Argus 

 vagans — under which not only the Egyptian Erigone vagans Sav. 

 et Aud., but also 1'her. dentipalpe Reuss is cited — undoubtedly 

 includes one or other of the three species before us; it is said also 

 to be found in France, and I have myself seen a specimen of E. lon- 

 gipalpis Westr. from Cherbourg. Walckenaer indeed takes up Stjn- 

 devall's spider as a separate species under the name of Argus lon- 

 gimanus (loc. cit. , p. 346), but only from Sundevall's description. 

 Blackwall at first confounded E. dentipalpis with E. longipalpis, 

 at least when he composed the description and figure of his Ne- 

 riene longipalpis given in P. II of the Spid. of Gr. Brit, (which Part 

 was not published till in 1864); but already in 1863 we find E. 

 dentipalpis Westr. taken up as a separate species both by Cambridge 

 and Blackwall (vid. next following spec, Syti.). Under Neriene 

 longipalpis Blackw. , E. vagabunda is certainly included ; a speci- 

 men however of n N. longipalpis", identified by Mr. Blackwall him- 

 self, and sent to me by the Rev. Mr. Cambridge, I cannot distinguish 

 from the true E. longipalpis Sund. , Westr. The figures given in 

 Spid. of Gr. Brit., PI. XXII, fig. C, belong either to E. longipalpis 

 or E. vagabunda (probably to the latter): PI. XIX, fig. 188 on the 

 other hand represents an E. dentipalpis Westr. 



Ohlert has united all three species under the denomination E. 

 dentipalpa, as I see from the specimens that he has had the kind- 

 ness to send me '). Menge's synonym is prefectly certain; he has 

 also been kind enough to send me both cf and ? of his E. longipal- 

 pis. In Menge's Verzeichn. Danz. Spinn., p. 71, a new species is 



1) Out of six fullgrown males of "E. dentipalpa Ohl.", 4 belonged to E. 

 longiimlpis, 1 to E. vagabunda, and 1 to E. dentipalpis Westr. 



