I shall refrain from enumerating the species contained in the 

 Genus Aphodhis (upwards of 50), and content myself with 

 giving the different groups into which it has been found con- 

 venient to divide them. 



A. Clj'jieus emarginate. 



* Tuberculated; thorax sulcated transversely. A. asper. 

 * * Smooth ; elytra deeply sulcated. A. jwrcatus, &c. 

 * * * Smooth ; elytra with flat interstices between the fur- 

 rows. A. C(€SUS. 

 * * * * Slightly emarginate, smooth. A. villosus, &c. 

 ***** Tuberculated. A. Fossor, &c. 



B. Clypeus entire, smooth. 

 A. riifipes, &c. 



The larvae have six feet ; they are annulated, hairy, with a 

 vesicle at the apex of the abdomen ; they have a hard horny 

 head ; they live inactively in dung, upon which they feed. 

 (Stewart's Nat. Hist.) The perfect insects fly in the sunshine 

 about the excrement of animals, especially horses and cows. 



Aphodius villosus is an extremely rare species on the Con- 

 tinent, and in this country the only specimen known is the one 

 figured in the plate, which I found dead several years since in 

 the month of August upon Newmarket Heath ; and I have 

 little doubt that I should have captured more if it had been 

 earlier in the season, but my most diligent search proved 

 fruitless. 



For specimens of the local and beautiful Anemone Pulsatilla 

 (Pasque Flower or Hill Tulip) I am indebted to my kind 

 friend J. S. Henslow, Esq., Professor of Mineralogy at Cam- 

 bridge, who gathered them upon Newmarket Heath, not far 

 from the spot where the Aphodius was taken. 



