460 CLASS INSECTA. 



the chylific ventricle presents no vestige of papillae. (Annal, 

 des Sc. Nat. III. p. 234.) 



In the Geotrupides, Macl., the labium is terminated by 

 two lobes or projecting tongues. The mandibles are gene- 

 rally prominent and arched. The labrum is in the whole 

 or in part uncovered. The antennae are composed in the 

 greater number of eleven articulations. The body is black 

 or reddish, with the elytra smooth, or simply striated. The 

 males have frequent projections in the form of horns, or 

 differ externally by other characters from the individuals of 

 the other sex. These insects live more particularly on ex- 

 crementitious matters. 



Some have nine articulations on the antennae. 



jEgialia, Latr. Aphodius, Fab., 



Have the labrum very short, transversal, scarcely apparent, 

 and entire, the mandibles terminating in a bifid point, the 

 internal lobe of the jaws corneous and bidenticulated ; the 

 body short, inflated, with the corslet transverse, and the 

 abdomen gibbous. The four posterior limbs thick, incised, 

 and the last two terminated by two compressed spurs, 

 almost elliptical, or in the form of a spatula. The ante- 

 rior two have no teeth on the internal edge. The posterior 

 thighs are stronger.* 



Chiron, Mac L. Dlosomus, Dalm. Sinodendron, Fab., 



Approach, in consequence of the knob of the antennas, rather 

 semipectinate than foliated, to the Lamellicornes of the 

 second tribe, and have, in fact, been placed there by Mr. 

 W. Macleay. But they belong from the assemblage of 

 other characters to the present section. Their labrum is 



* PsammoLRuf arenarius, Gyll. Insect. Suec. I. p. 6: Srambceus globosus, 

 Panz. Faun. Insect. Germ. XXXVII. 2; Aj)hodiits arenaiius, Fab. 



