339 



the cephalothorax is straiyht, in T. terricola evidently longitudinally 

 arched. The vulva is also slightly different; in '/'. ruricola it is 

 formed by a little fovea broader behind and rounded in front, tra- 

 versed by a narrow septum, which at the hinder extremity, where 

 the fovea is somewhat wider, suddenly dilates into a transverse 

 costa or narrow plate. In T. terricola the vulva is of precisely the 

 same form, but somewhat larger, and includes two obliquely posited 

 tubercles, one in each of the hinder corners and immediately in front 

 of the transversal costa or plate, which tubercles seem to be ab- 

 sent or at least less distinct in T. ruricola. T. ruricola is also ge- 

 nerally larger than T. terricola, but in size it varies incredibly; I 

 have Swedish specimens (females) in which the cephalothorax is 

 only 4'/ 4 millim. long, whereas in others it reaches 7 1 /, millim.; 

 in a female from Nice it is not fully 4 millim. long. In the males 

 in my collection the length of the cephalothorax varies from 3V 2 to 

 5 millim. T. terricola does not appear to vary so greatly in size. 



English specimens of both sexes as well of "L. campestris Blackw." 

 as of n L. agretyca id." have been kindly transmitted to me by Cam- 

 bridge. Simon has sent me a cf ad. of T. terricola (not T. ruri- 

 cola) under the appellation of "Troch. campestris (Walck.)". 



(Pag. 529.) 29. L. terricola [= Trochosa terricola (Thor.) 1856]. 



Syn.: f?1802. Aranea agretyca Walck., Faune Par., II, p. 238 (ad part.). 

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

 f?1806. „ ruricola Latr. , Gen. Crust, et Ins., I, p. 120 (adpart.). 

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



f. 1832, p. 192 (ad part.). 

 fl836. ,. trabalis C. Koch, in Hisrr.-Sch,ei-f., Deutschl. Ins., 134, 



19, 20 (sec. Kocn, DieAvachn.). 

 1843. „ agretyca Blackw. , A Catal. , cet., in Transact, of the 

 Linn. Soc, XIX, p. 118 (sec. Spid. of Gr. Brit.). 

 1848. Trochosa trabalis C. Koch, Die Arachn., XIV, p. 141, Tab. 



CCCCXCII, figg. 1371-1374. 

 1856. „ terricola Thor., Eec. crit. Aran., p. 62, 102. 

 1861. LYCOSA agretyca Blackw., Spid. of Gr. Brit., I, p. 17, PI. I, fig. 2. 

 1870. Trochosa terricola Zimmerm., Verz. d. Spinn. v. Niesky, p. 46. 



See the preceding species, ruricola Westr. 



(Pag. 530.) 30. L. piscatoria [ = Pirata piscatorius (Clerck) 1757]. 



Syn.: 1757. Araneus piscatorius Clerck, Sv. Spindl., p. 103, PI. 5, tab. 5. 

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



