570 



Westr. cf- The females which I have received from L. Koch and Cam- 

 bridge as belonging to "A", praticola" and 'Th. ineertus", agree however 

 so folly, not only with the Swedish, Finnish and German specimens 

 which I have looked upon as females to Westbisg's Th. brevipes c 7 , 

 but also with females that I have received from Ohlebt as belonging 

 to his A. praticola z (= Th. brevipes "Westr. rf). as also with a 

 specimen of 'Th. brevipes "Westr. \ lately sent to me by Westbisg 

 himself, that I am quite unable to distinguish them; and it there- 

 fore appears to me probable, that neither Westbjsg, Ohlert or I 

 have seen the real female to Th. brevipes ^Yestb. c, or X We- 

 strinpii, as I now call that spider. The males of the two species 

 are easily distinguished from each other by the entirely different 

 form of the outer process of the tibial joint etc., as has been shown 

 above, p. 255. That an adult male of " Th. ineertus* has been found 

 in Sweden (in Bohuslan), I have already mentioned (p. 427). 



But Th. brevipes Hahs also appears to be a different species 

 from 27t. brevipes Westb. (cf). Dr L. Koch has in fact sent me 

 from Xiirnberg specimens of both sexes of a Xysticus, which he con- 

 siders to be Hahs's Th. brevipes, and the male of which is different 

 as well from X. praticola or incertus and from Th. brevipes W'estb. 

 or A'. Westringii, as from the male which I, p. 256, described under 

 the name of A. pusio: the female of my A. pusio on the contrary 

 belongs to the species denominated by L. Koch A", brevipes (Hahs), 

 and the real female of A. pusio is therefore as yet unknown. As 

 the females of these species stand in close relationship to each other, 

 and it is probably not possible to determine with certainty, to which 

 Th. brevipes Hah>- (a ?) ought in accuracy to be referred, it may 

 seem a matter of indifference, to which of them Hahs's specific name 

 be assigned. But as Hahs's Th. brevipes was found at Nurnberg, 

 and Dr Koch — who resides in that city and has for a long series of 

 years made the spiders met with there his study — considers my A. 

 pusio ? as the real Th. brevipes Hahs, it seems best to accept his 

 determination of the species as binding. — To what species Hi. bre- 

 vipes Walck. is to be aggregated, it can hardly be possible to say; 

 Th. brevipes Blackw. is perhaps nothing else than young specimens 

 of Xyst. luctuosus (Blackw.): see above, p. 427. 



In a zf °f the species which 1 now, with L. Koch, call A. 

 brevijyes (Hahs), the cepbalothorai is IV. millim. long, shagreened 

 with closely situated punctures, dark brown, with bright, yellowish, 

 radiating lines on the sides and pars cephalica; it has a pale middle 



