254 



the first pair have, the one two, the other three very short, almost 

 conical spines (considerably shorter than in the cf of X. atomarins), 

 those of the 2 nd pair respectively one and two very close together, 

 those of the 3 rd each one; the thighs of the 4 th pair have, the one 

 one spine, the other none. In ? at least the thighs of the 2 nd and 

 3 rd pairs have eacha very little spine, which is however occasionally ab- 

 sent. The spines of the tibia? and metatarsi are in both species the 

 same both as regards number and situation. 



In X. horticola cf the tibial joint of the palpus is very com- 

 plicated. On the outer side it sends out two processes, one from 

 the apex, lying like a thin plate close to the edge of the lamina, 

 the other boldly projecting outwards, strong, tapering towards the 

 extremity and somewhat curved forwards: on the under side the joint 

 has a broad, strong process, deeply cloven into two compressed 

 branches, the outer of which is thinner and more pointed, the other 

 somewhat coarser, thickened at the apex, slightly curved upwards 

 and a little inwards. The bulbus, beneath, is swelled into a high, 

 blunt protuberance; towards its extremity appears a long, fine, spi- 

 rally curved spine; at the base it has a little crooked hook. — The 

 vulva exhibits two large, black, oblong or almost triangular spots 

 with the point directed outwards and somewhat forwards, and in 

 front of them two small, dark points close to each other. 



In X. atomarius (Panz.) nob. $ the extremity of the tibial 

 joint of the palpus has above, towards the outer side, a forward- 

 pointing, short, triangular process, lying close to the lamina: from 

 the outer side of the joint issues a strong, pointed process , directed 

 outwards and curved forwards (just an in X. horticola); from its 

 under side, outwards, issues a rather slender process, slightly cloven 

 at the very apex, and directed downwards and forwards. The vulva 

 in this species exhibits four spots of almost equal size, forming a 

 rectangle, the two anterior however sometimes scarcely visible 



(Pag. 438) 15. Th. brevipes [= Xysticus brevipes (Hahn) 1831]. 



Syn.:? 182. . Thomisus brevipes Hahn., Monogr. Aran., 4, Tab. HI, fig. C. 



1831. „ „ id., Die Arachn., I, p. 30, Tab. VIII, fig. 25. 



1837. Xysticus ,, C. Koch, Uebers. d. Arachn. -Syst., 1, p. 25. 



1837. ,, praticola id., ibid., p. 26. 



1838. „ „ id., Die Arachn., IV, p. 77, Tab. CXXX, figg. 



300, 301. 



1856, Xysticus brevipes Thor., Eec. crit. Aran., p. 111. 



