278 



in front: a narrow longitudinal septum, which extends through the 

 the area, forms with this costa a very distinct x> which is often 

 also the approximate form of the whole area. 



(Pag. 476.) 4. L. arenaria [= Lycosa agricola Thor. 1856]. 



Femina (et Mas ad part.?): 



Syn.: fl834. LYCOSA ARENARIA C. Koch, in Herr.-Schjefj?., Deutschl. Ins., 123, 



15, 16 (sec. C. Koch, Die Arachn.). 

 fl843. „ pallida Blackw. , A Catal. , cel., in Transact, of the Linn. 



Soc, XIX, p. 119. 



1848. „ (PARDOSA) ARENARIA C. Koch, Die Arachn., XV, p. 36, Tab. 



DXIV, figg. 1441, 1442. 

 -j-1851. „ SACCATA Westr., Forteckn. etc., p. 52. 

 1856. „ AGRICOLA Thor., Eec crit. Aran., p. 61. 

 1861. „ fluviatilis Blackw., Spid. of Gr. Brit., I, p. 31, PI. II, 



fig. 13. 



1867. Pardosa ARENARIA Ohl., Aran. d. Prov. Preuss., p. 136 (ad part.). 

 1870. Lycosa „ L. Koch, Die Arachn. -fauna Galiz., p. 41, 42. 



Mas (salt, ad part.): 



1861. Lycosa agrestis Westr., Aran. Suec, p. 480. — Cet. synon. vid. 

 infra, in L. agresti Westr; 



Savigny and Addouin have already (Descr. de l'Egypte, XXII, 

 p. 367, PI. IV, fig. 3) described and figured another spider under 

 the name of Lyc. arenaria; and as that species seems to belong to 

 the genus Lycosa sensu strictiori (it is, for example, said of its co- 

 coon, that it is "de forme lenticulaire"), the spider we are now con- 

 sidering cannot be allowed to retain the specific name arenaria. 

 According to Blackwall himself, the spider which he in 1834, loc. 

 cit. , without description mentioned as Lyc. pallida Walck. (= Lyc. 

 Wagleri Hahn), was erroneously determined, and is identical with 

 L. arenaria C. Koch, on which account Blackwall has changed its 

 name to L. fluviatilis', but the name L. agricola has the priority. 

 — L. saccata C. Koch is not, as Westring supposes, identical with 

 his L. arenaria or L. agricola, but is a peculiar species not hitherto 

 met with in Sweden, and nearly related to L. amentata Westr., con- 

 cerning which vid. infr. — L. agricola Thor. or L. arenaria Westr. 

 has probably often, perhaps even by Clerck and Linketjs, been con- 

 founded with L. amentata (Clerck). 



