458 CLASS TNSECTA. 



last coprophagi have all the feet inserted at an equal dis- 

 tance from each other, and a very distinct scutellum. The 

 labial palpi are smooth, or but little hairy, with the third 

 and last articulation larger, or at least longer than the pre- 

 ceding. The elytra entirely envelope the compass of the 

 abdomen, or form to it a vault, a character which approxi- 

 mates them to the scarabeides of the following sections. 

 These insects have, otherwise, very great relations, both as 

 to the antennae and the feet, with those of the preceding 

 sub-genus ; but the sexual differences are less marked, and 

 often consist only in simple small eminences, in the form of 

 tubercles. All these coprophagi, are, moreover, of small size. 

 Many species make their appearance from the earliest days 

 of spring. They compose two sub-genera. 



Aphodius, Illig. Fab. Scarahceus, Lin. Geoff. Copris. Oliv. 



The last articulation of the palpi is cylindrical, that of 

 the labial is a little more slender than the preceding, or at 

 all events not thicker. The jaws have not at the internal 

 edge any appendage, or corneous and denticulated lobe. 

 The body is rarely short, with the abdomen very gibbous, 

 and when it presents these characters the corslet is not fur- 

 rowed transversely. 



S- Jimetarius, Lin. Panz. Faun. Insect. Germ, XXXI. 

 2, three lines in length, black, with the cases and a spot of 

 the corslet fawn-colour, three tubercles on the head, some 

 punctuated striae on the elytra. (See Schoen. Synon. Insect. 

 I. i. p. 66. Panz. Ind. Entom. p. 7-) 



PSAMMODIUS, Gyll., 



In which the last articulation of the palpi is almost ovali- 



AteucJiui Tmolus, of M. Fischer (Entom. de la Russie, I. viii, I. 2.) is a 

 copris. 



