Dr. AfzeliusV Obfervatiom on the Genus Paufus. 253 



ferruginous colour, looking as if pellucid, and the poftcrior margin 

 of the laft fegment but one as if railed above the terminal, which 

 is dark-coloured, very large and bent down, being behind circular 

 and marginated ; underneath, and on its fore-part, the abdomen is 

 marked with a little convex plat fituated between the fee on d and: 

 third pair of feet, and further towards the end it is gibbous, the 

 firff. and the fourth of the fegments being much broader than the 

 others, and the cavity under the thighs of the hinder feet fur- 

 rounded by a circle of very minute and approximated dots. In the 

 fpecimens of P. microcephalus which I have had to examine, this ca- 

 vity being covered by the thighs, and the upper part of the abdomen 

 by the elytra, I can fee only very few of the dots ; nor am I able 

 to afcertain whether the whole back, of the abdomen is as light- 

 coloured as that of P. fphecrocerus. 



The Feet are all nearly of an equal length, the two firft being 

 inferted in the fore-part of the thorax, or rather of the breaft ; the 

 two fecond in the bafe of the venter at the top or contracted end 

 of the little plat above mentioned ; and the two laft in the middle 

 of the venter. The thighs are thicker than the legs, particularly 

 thofe of the hinder feet ; they are without hairs or fpines, of an 

 oblong fhape, but more contracted at the bafe, and comprtffed, 

 though at the fame time gibbous on both fides ; they are moveable 

 in a tranfverfe direction by aid of a light-coloured appendage, 

 which being attached to their bafe within, roils in a focket below, 

 and which on the hinder feet is very large, oval, and com pre (Ted to 

 an obtufe edge, but on all the other feet it refembles more a tuber- 

 cle, being almoft round; the thighs are laftly cut out at the top, 

 and their inner margins a little beyond the middle, for the inward 

 motion and contraction of the legs, which alio are comprefTed but 

 not gibbous, and on the edges more or left furnifhed with fhort 



hairs*. 



