088 FAMILY L. SCAL'AB.'TiTD.l':. 



confused, especinlly tdwarrt the base. Aiiteniial club as long as stem in 

 female, one-half longer in male. Length 14-17 mm. 



L{iko, Lapoi'te miuI Posey counties; rni-e. .lime G-Atigiist 10. 

 Occurs ill snndy localities. 



Tribe II. DYNASTINI. 



JMcdiuin-sized to very large rolmst forms, having the lal)i"inn 

 usually invisible; mentuiii narrowed and suhacinninate, rarely trun- 

 cate, in front; tarsal claws equal, not toothed. In some genera the 

 males have the head and often the thorax armed with horns. To 

 the tribe belongs our largest Indiana beetle and in the tropics the 

 largest of known beetles. Seven of the eleven genera comprising 

 the tribe are represented in Indiana. 



'i'lie most available lite'-ature I'elating to the North American 

 genera is as follows: 



LeConte. — "Notice of three genera of Scarabieida^ found in the 

 United States," in Proc. Phil. Acad. Nat. Sci., VIIT, 1856, 

 19-24. Treats of the genera lAqyrvft and Aplionus. 



Born. — "Descriptions of New Coleoptera of the United States 

 ■\vitli Notes on Known Species," in Trans. Amer. Ent. Soc, 

 III, 1S71. Tlie genus CyrJoccphald is treated on pp. 834- 

 337. 



Horn. — "Synonymical Notes and Descriptions of New Species 

 of North American Coleoptera," in Trans. Amer. Ent. Soc, 

 V, IS'75, 126-156. Synopses of the genera Lif/iiruf! and Sfra- 

 iwgus are given on pages 143-147. 



Horn. — "Contributions to the Coleoptera of the United States, 

 III," in Trans. Amer. Ent. Soc, VIII, 1880, 139-154. This 

 includes a table of species of the genus Phileurus, pp. 

 147-148. 



KEY TO INDIANA GENERA OF DYNASTINI. 



(I. Body convex, usually more or less oval; labial palpi inserted at the 

 sides of mentum. 

 h. Head and thorax unarmed in both sexes. 



c. Mandibles narrow, scarcely curved; color pale brownish-yellow. 



XXIX. Cyclocepiiaia. 

 cc. Mandibles broad, rounded on the outer side and curved; color pic- 

 eous or black. XXX. Dyscinetits. 



hh. Mead or thorax (somelimes both) armed, or at least bearing a tuber- 

 cle, in l)oth sexes. 

 <J. Size over 30 mm.; color jiiceoiis or dark reddish-brown; males 

 with the fi'ont feet not elongated. 



