26 
SCARAB^EID^E. 
John L. Le Conte. — Notice of three genera of Scarabaeidae found in 
the United States. <Proc. Ac. Nat. Sc. Phil., Vol. VIII, 1856, 
pp. 19-25. 
Treats of Ligyrus, Aphonns, and Polymcechus. 
John L. Le Conte. — Synopsis of the Melolonthidae of the United 
States. <Journ. Ac. Nat. Sc. Phil., ser. 2, Vol. Ill, 1856, pp. 225- 
288. 
Geo. H. Horn. — Notes on some genera of Coprophagous Scarabaeidae 
of the United States. <Trans. Amer. Entom. Soc., Vol. Ill, 1870, 
pp. 42-51. 
Tabulates Copris, p. 42; Canthon, p. 44; Amechanus ( Brady cinetus), p. 48; 
Bolboceras, p. 49; Odontseus, p. 50. 
Geo. H. Horn. — Description of the species of Aphodius and Dialytes 
of the United States. <Trans. Amer. Ent. Soc., Vol. Ill, 1870, pp. 
110-134. 
Geo. H. Horn. — Synopsis of Aphodiini of the United States. <Trans. 
Amer. Ent. Soc., Vol. Ill, 1871, pp. 284-297. 
Continuation of the foregoing paper. 
Geo. H. Horn. — Descriptions of new Coleoptera of the United States, 
with notes on known species. <Trans. Amer. Ent. Soc., Vol. Ill, 
1870-’71. 
Tabulates Cyclocepliala, p. 334 ; Catalpa, p. 337 ; Cremastochilus, p. 339. 
Geo. H. Horn. — Synonymical notes and descriptions of new species of 
North American Coleoptera. <Trans. Amer. Ent. Soc., Vol. V, 
1875. 
Tabulates Onthophagus, p. 137; Ligyrus, p. 143; Strategus, p. 143. 
George H. Horn. — Revision of the United States species ofOchodaeus 
and other genera of Scarabaeidae. <Trans. Am. Ent. Soc., Vol. 
V, 1876, pp. 177-197. 
Tabulates Ochodseus, p. 177; Macrodactylus, p. 183; Dichelonycka, p. 185; 
Ccenonycha, p. 192; Trichi us, p. 194. 
George H. Horn. — Contributions to the Ooleopterology of the United 
States, No. 3. <Trans. Amer. Ent. Soc., Vol. VIII, 1880. 
Tabulates Geotrupes, p. 144 ; Phileurus, p. 147 ; and describes the species of 
Plectrodes, p. 145. 
Frederick Blanchard. — On the species of Canthon and Phanaeus 
of the United States, with notes on other genera. <Trans. Amer. 
Ent. Soc., Vol. XII, 1885, pp. 163-172. 
Geo. H. Horn. — A monograph of the Aphodiini inhabiting the United 
States. <Trans. Amer. Entom. Soc.* Vol, XIV, 1887, pp. 1-110, 
Supersedes the two papers cited above. 
