COLEOPTERA. 



467 



)utrefactIon. The most remarkable insects of this tribe are the 

 Usters, the Silpkas, properly so called, and the NccropJwra. 

 The Histers are small insects, to be recognised by their body being 

 almost round, smooth, and shining, with the elytra marked with striae, 



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Fig. 450. — Lucanus bellicosus. 



.nd their mandibles pretty well developed. They attam to a length 

 )f about a fifth of an inch. The Silphce, thus named on account of 

 heir broad and rounded form, are of a large size (about half to three- 

 uarters of an inch), of a dark colour, and exhale a sickly odour. 



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