Dr. ApzeliusV Obfervatlons on the Genus Paufia, 2^1 



comprefTed, narrower towards the top and blunt, and fcem to have 

 neither joints nor motion, nor the fame Itrueiure as the others, 

 being minutely punctated. Whether or not they internally adhere 

 to the maxillae, is impoffible for me to decide; but certain it is, 

 that if they do, it cannot be to any other part than their very 

 bafes. 



The Mandibular, alfo inferted in the jugular crofs-line between 

 the exterior palpi and the anterior angle of the eye-focket, extended 

 to the middle of the under-joint of the antennae, and, moving on 

 two hinges below, are upon the whole arched, acuminated, and forci- 

 pated: but, to fpeak more particularly, they confiff of three different 

 parts, viz. two horny cafes or fheaths, the inferior of which is the 

 largeft and almoft flraight; the fuperior narrower, fhorter, and 

 bending inwards; and from the top of this there comes out a Mill 

 narrower round and flefhy hook, which meets that of the other 

 mandibula, and feems to be a true inftrument for feeling. The 

 ftructure. of the lowermo/t fheath being the broadefr, and the other 

 broader than the hook, makes the mandibula? appear as drawn out 

 below on the infide, and as if furnifhed with two teeth, the inferior 

 of which is covered with fmall hairs. 



The Maxilla: being hidden by the mandibulae, the exterior palpi 

 and the labium, I cannot fee any thing of them but their very 

 tops, which are extended above the lip, or between it and the 

 mandibular, and appear to be arched, horny, cylindrical, toothJefs, 

 fharp- pointed and forcipated. 



The Labium is rather large, thin and membranaceous, of equal 

 length and breadth, longitudinally raifed in the middle, entire at the 

 top, and there furnifhed with hairs. It is befides fhorter than the 

 interior palpi, and often covered by them, which then are placed 

 one on each fide of the longitudinal carina. That of P. fpbtrroccrus 



K k 2 is 



