6 



is erroneous, the latter apparently confining itself 

 to Europe in the Old World, while the former 

 seems peculiar to the southern regions of the New 

 World. 



Sp. 5, 6, and 7. — All of them originally be- 

 longing to Latreille's genus Megacephala and now 

 to Mr. Westwood's genus^ Tetracha, the major part 

 of the species inhabit North and South America as 

 well as some Islands of the New World : the fol- 

 lowing genera compose the family. 



Megacephalid^, Hope. 



The Megacephalidae belong to the Old and New 

 World, the true type of the first genus is Meg. 

 Senegalensis, Lat ; which in the French Encyclo- 

 paedic, Mons. Serville has named Aptema, as it is 

 apterous. Meg. Euphratica and 4-signata, closely 

 allied to the former, are undoubtedly winged spe- 

 cies, we have therefore two sections of the group, 

 which may be described as follows. 



