321 



L. cruciata Sund. is, as Westkjng has justly supposed, a by no 

 means uncommon variety of T. andrenivora or barbipes, distinguished 

 by the dark marking along the middle of the abdomen being within 

 a broad, lancet-formed, greyish white vitta extending along the whole 

 back of the abdomen. 



The male's bulbus genitalis has in T. andrenivora, on the 

 under side, at the outer margin, a small transverse lamella, directed 

 obliquely forward; the outer angle of the the extremity of this la- 

 mella extends into a slender spine, curved upwards and backivards. 

 This spine is compressed, and, when viewed from its broad side, an- 

 gularly curved, truncated at its apex, with the edge that is turned 

 towards the bulbus of a paler colour. By this spine the male of 

 T. andrenivora is easily distinguished from that of every other si- 

 milar species, that I know of. The inner corner of the extremity 

 of the above named lamella has the form of an acute angle or little 

 tooth. The under side of the bulbus, at the apex, exhibits a large, 

 round protuberance. The vulva is formed by a little depression or 

 fovea, the anterior margin of which is incrassated, and divided by a cen- 

 tral depression into tivo tubercles. The fovea is limited behind by a 

 costa or plate with two other smaller and more widely separated 

 tubercles. As regards the marking on the back of the abdomen 

 the female is almost exactly like T. fabrilis (Clerck), but the mar- 

 king in the latter is of a clearer white, and more especially the 

 white spots arranged in two lines on the hinder part of the back 

 are larger and more distinct. T. fabrilis is moreover much larger, 

 and has a black belly (not greyish, like T. andrenivora) — T. 

 albo-fasciata (Bkclle), the female of which has often much resemblance 

 with T. andrenivora %. may also he distinguished by its black belly. 

 Concerning T. albo-fasciata, see above p. 317. 



(Pag. 513.) 20. L. trabalis [> Tarentula trabalis (Clerck) 1757J. 



Sijn.: 1757. Araneus trabalis Clerck, Sv. Spindl., p. 97, PI. 4, tab. 9. 



1789. Aranea obscdra Oliv., Encycl. Meth., IV, p. 218. 



1802. „ vorax Walck., Faune Par., 11, p. 238 (salt, ad part ). 



1805. Lycosa „ id.. Tabl. d. Aran., p. 13 (salt, ad part.). 



1825. „ „ id., Faune Franc., Arachn., p. 21 (excl.salt. "Var. 2"). 



1831. „ „ H.u.k, Die Arachn., I, p. 105, Tab. XXVI, fig. 78. 



1833. „ „ Sund., Sv. Spindl. Beskr., in Vet.-Akad. Handl. f. 



1832, p. 183 (= S). 



1833. „ trabalis id., ibid., p. 182 {ad part.: non $). 



