ORDER COLEOPTERA. 487 



Glaphyrus, Latr. 



Have the internal edge of the mandibles denticulated, and 

 an acute angle at the other edge ; the knob of the antennae 

 almost ovoid ; the teguments firm, and the posterior thighs 

 inflated. The maxillary palpi are sensibly larger than the 

 labial, with the last articulation longer than the preceding. 

 The internal lobe of the jaws is in the form of a tooth ; the 

 external or terminal is coriaceous. The corslet is oblong. 

 The posterior feet are large. 



Amphicoma, Latr. 



Have the mandibles rounded and arched on the external 

 side, without denticulations at the internal edge ; the knob 

 of the antennee globular, the abdomen soft, and all the feet 

 of the usual size. 



The hood is very much edged. The anterior legs have 

 three teeth at the external side. The first four articulations 

 of their tarsi are strongly ciliate in the males. 



In this sub-genus and the following, the jaws terminate in 

 a membranous lobe, narrow, elongated, and in the form of a 

 shred. Their palpi are scarcely longer than the labial, and 

 the length of their last articulation little exceeds that of 

 the preceding. 



In others, such as 



Anthipna, Escholtz., 



The knob of the antennae is formed of free leaves, and is 

 oval. 



The hood is not edged or raised in front. The middle 

 portion of the head forms with it a plate in a long square, 

 edged laterally and posteriorly. The anterior limbs have 

 two teeth at the external side. The first four articulations 



