114 



Sp. 13. Trichius piger, Fab. — Mr. Kirby, some 

 time since, in the Zoological Journal, published his 

 remarks on the Trichhdse, and made piger, Fab. the 

 type of a subgenus. The name of Trichinus too 

 closely resembles Trichius. The reader is referred 

 to the North American Fauna, page 136, for an 

 account of several new species, and copious observa- 

 tions respecting this interesting family. In the last 

 mentioned work a new family of the Lamellicorns 

 named Diplotaxidse has been instituted by Mr. 

 Kirby, and a new genus, bearing the name of Diche- 

 lonycha has been separated from Macrodactylus, 

 from which it is distinguished by having its maxillae 

 armed only with two teeth, the last joint of its palpi 

 of a different shape, and its labium approaching to 

 a square form ; whereas in the latter genus the 

 maxillae are more conspicuous, and armed with three 

 teeth, the last joint of the palpi is subovate, and the 

 labium is oblong and channelled. The species seem 

 confined to the northern parts of the New World. 

 Three are described, the type being Melolontha 

 linearis, Herbst. 



