Klug's Entomologischc Monographien, 539 



and embraces Coleoptera as well as Hymenoptera^ including 

 several new genera in the latter order, in. which the learned 

 author is peculiarly versed. The whole of the insects described 

 are exotic, and with very few exceptions, extra-European ; and 

 it might almost be added that the whole of them are new, for the 

 number of those which had been previously described, is quite 

 insignificant in proportion to the mass. A rapid enumeration of 

 the genera noticed, with the characters of such as are new, and 

 the number of species described in each, will be sufficient to afford 

 a general idea of the present publication. 



Of Ctenostoma^ a genus first determined by the learned author^ 

 three species are described, two of these having been formerly 

 characterized by him. Of Jgra the number of species is twenty; 

 seven having been now added to the list which he had previously 

 given in the Transactions of the Leopoldine Academy. The species 

 of Megalopus described are thirty-one ; the whole, with the ex- 

 ception of one African species, being natives of South America, 

 To these are to be added the M. dor salts of Olivier, and the iH* 

 sexmaculatus of Kirby, making the number now described thirty- 

 three. In Chlamys the number of species is still more consider- 

 able. Those described by M. King are sixty-four, sixty of which 

 are contained in the Berlin collection. From an additional note, 

 we learn that this number is to be increased to eighty-'four, there 

 being twenty other species described in the '^ Monographia 

 Chlamydum" of M. V. Kollar, published at Vienna, in the earlier 

 part of 1824. The whole number contained in this latter work 

 is only forty-five, which are divided into two sections ; those with 

 the suture of the elytra smooth, and those in which it is serrate ; 

 a division which appears to be scarcely necessary, as the first 

 comprises only four species. One of the species of Chlamys 

 described by Professor Klug, under the name of C. braccata^ is 

 added to that genus with considerable doubt. It is a very re- 

 markable insect, and was regarded by Count Von Hoffmansegg 

 as the type of a new genus to which he gave the manuscript name 

 of Caloscirtes. It differs from the other species of Chlamys in 

 the great length of its antennce, which exceeds that of the body, 

 jind ill the thickness of its hinder thighs. Of Mastfgus there are 



