MOUTH OF ONTHOPHAGUS. 81 



always fringed lobes like stiff brushes, as if for cleansing 

 the food or the other appendages of the mouth. Also, I 

 may mention that the palpi of those Beetles which feed 

 on the pollen of flowers, such as the tribe of the Nitidu- 

 sida, are used by them to open the anthers in a very 

 curious way. 



The antennae of the Beetle are not described here but 

 in connection with those of the Blow-fly and Bee, con- 

 cerning which some interesting discoveries have been lately 

 made. 



MOUTH OF BEETLE. 

 (Bouche et palpes de Calathus Castelloides.) 



This is a black Beetle about half an inch long, very 

 common in the neighbourhood of London; found under 

 stones. 



The object is good as showing beautifully fringed 

 maxillae with two pair of labial palpi ; the outer pair have 

 four joints, the lower pair only three. Some species of 

 Coleoptera have one pair of labial palpi, and one pair of 

 maxillary palpi. 



Observe, the little tonguelet in the centre has two ear- 

 like appendages, called paraglossae. That broad curved 

 plate above it is the mentum, with a notch in the centre, 

 which distinguishes the section of the Carabici to which it 

 belongs. 



MOUTH OF BRACHINUS. 

 (Bouche et palpes de Brachinus.) 



The mouth of the Bombadier Beetle (see leg of 

 Brachinus), one of the Carabici, which has the maxillae 

 terminated simply in a point ; the tonguelet exposed, and 

 labial palpi distinctly three-jointed; the mentum not 

 toothed; the last joint of both maxillary and labial palpi 

 evidently dilated. 



MOUTH OF ONTHOPHAGUS. 

 (Bouche et palpes.) 



One of the Dung-beetles or Scarabreides, the earliest 



