541 



and which he probably borrowed from Latreille, differs greatly from 

 his description of Th. villosns, partly because I happen to possess a 

 specimen from the South of Europe of a species nearly related to 

 Th. villosns, which the description of Th. hirmtm suits far better 

 than that of Th. villosns. I have therefore distributed the synonyms 

 of these two species as is seen above. — If Latretlle in the 2:nd edi- 

 tion of Nouv. Diet. d'Hist. Nat. has given a Latin name, whether 

 Mrtus or hirsutus, to his "Thorn, hfr-isse", it is clear that that name 

 must take precedence of "Walckenaer's. 



In both Misumena villosa and M. hirsute the body is covered 

 with long coarse bristles and hairs; as the spines with which the 

 legs are copiously supplied, much resemble the bristles in colour and 

 length, they have been overlooked by Walckknaer, as is clear from 

 his description of Th. villosns. In both species the spines with which 

 for example the under side of the anterior tibire and metatarsi is 

 armed, are situated on conical protuberances, which are higher in 

 proportion to the stoutness of the spines they bear, and are more 

 developed in the anterior than in the posterior row of spines; they 

 also appear to me to be somewhat stouter in M. hirsuta than in M. 

 villosa. In the female of this last species the l:st pair is 3 1 /, — 4 

 times as long as the cephalothorax; the back of the cephalothorax 

 is straight, carinated, with very marked impressiones cephalicse; the 

 pars cephalica is narrow, not rounded at the sides, nor depressed 

 across the middle, and has (as in the case also of the male) a very 

 conspicuous, whitish, longitudinal middle band or line. The ante- 

 tenor lateral eyes are a trifle larger than the anterior centre eyes. 

 The spines on the legs are tolerably fine, although in size and num- 

 ber pretty variable. In c? the bristles, hairs and; spines on the 

 legs are much longer than in $, and the spines particularly fine. 

 The outer side of the tibial joint of the palpi is drawn out into an 

 almost uniformly broad process or thick lamina directed forward and 

 somewhat outward and slightly curved downward, which is almost 

 double as long as it is broad, and considerably longer than the 

 tibial joint itself; on the inner side, a little behind the upper angle 

 of the truncated extremity, it carries a strong, somewhat pointed, 

 straight, forward- and slightly outward-pointing spur; the lower 

 angle of the extremity forms a projecting corner; beneath, near the 

 outer side, the tibial joint carries an outward- and slightly forward- 

 pointing, almost straight, pretty strong process, which is slightly 

 depressed at the extreme apex, and there, on the inner side, dilated 

 into or provided with a little process projecting at right angles. 



