ORDER I. COLEOPTERA. 77 



tarsi are only three-jointed, and the elytra and abdomen 

 are much wider than in the pentamerous beetles with 

 short wing-cases. It has, however, been thought to find 

 its proper place among these. 



Another cluster of beetles, with horns more decidedly 

 enlarged at the tip, or club-shaped, constitutes the third 

 Subsection, CORDYLOCERTA (jcopSwArj, cordule, a dub; 

 Kf/>ac, keras, a horn). 



The first Subdivision of these is Clavicornes (clavis, a 

 club, cornu, a horn), in which the antennae terminate in 

 a solid or perfoliate knob. This contains the oval- 

 shaped and very convex Pill-beetles (PI. II. fig. 1, 

 Byrrhus pilula). These are easily known by their 

 rounded form, and by their habit, when alarmed, of 

 drawing their small legs so closely together upon the 

 abdomen as to render them almost invisible. There 

 is a provision for this purpose in the form of the 

 abdomen, which has flattened grooves for the reception 

 of the legs, and in the legs themselves, of which the 

 various joints are grooved to receive each other. 



The genus Hister, containing some small, squarish, 

 hard, shiny black beetles, sometimes with red or buff 

 markings, sometimes with a metallic lustre, have the 

 same habit of feigning death. 



These beetles, though club -horned and feeding on 

 dead animal and vegetable matter, differ greatly from the 

 sextons, not in their form only and the contractile 

 power of their legs, but also in the character of the 

 larva. 



The next Subdivision, Lamellicornes, comprises the 

 Stagbeetles, the Dung-beetles, and the Chafers. 



In the first of these, the Stag-beetle, the three or four 

 final joints of the antennae are much enlarged on one 



