92 



Mentum suboblongum lateribus convexis apice 

 valde emarginato. 



Palpi labiales minuti articulis duobus basalibus 

 brevissimis, 3 tio longiore. 



Corpus oblongum subtus pilosissimum. 



Thorax fere semicircularis, inermis. 



Tibiae quatuor posticse pectinatae. 



Tarsi quatuor postici haud articulo l mo producto. 



Pedes anteriores unguibus insequalibus. 



Mr. Kirby has given the term Syrichtus as a 

 generic name, to include those insects allied to this 

 very remarkable form. The genus Heteronychus, 

 De Jean, (of which I possess a species named Het. 

 Licas, from Professor Klug of Berlin) in its general 

 appearance seems evidently distinct. 



To this genus the following species may be added, 

 viz. G. Aries, Fab. as well as a new undescribed 

 species from the island of Mauritius, which may, 

 therefore, be named from that locality Mauritianus. 



Genus. Pentodon, Kirby. 

 Type of the Genus. Geotrupes punctatus, Fab. 



Caput trigonum tuberculatum. 

 MandibulcB validse 3-lobatae, lobis latis obtuso- 

 rotundatis, externe hirsute, interne lanuginoste. 



