22 OBSERVATIONS ON 



catalogues, without any published characters, I abandon it 

 and adopt Escholtz' manuscript name of Adoretus, as the 

 characters are detailed by M. Laporte in the ' Suite de Buf- 

 fon (Articules), vol. ii. p. 142. 



Sp. 41. femoralis. An Adoretus of Escholtz, and the type 

 of the genus, (according to a manuscript letter which I re- 

 ceived from the author previous to his death), is Melolon- 

 tha compressa of Weber. The species allied to it are chiefly 

 from tropical Africa, Asia, and the Polynesian Isles. It has 

 been reported in England and France that Dr. Escholtz 

 died of cholera ; this is erroneous, as he died of a bilious 

 fever. 



Sp. 42. ccerulea. I consider this insect as a Popillia ; it oc- 

 curs in the East Indies, and not in Africa. 



Sp. 43. caruleocephala. Now a Popillia. In form it ap- 

 proaches the African more than the Asiatic species, its lo- 

 cality is probably the Cape of Good Hope. The reader is 

 referred to Mr. Newman's monograph on this genus. l 



Sp. 44. bipunctata. The type of the genus Popillia, Leach. 

 No locality is mentioned by Olivier ; it is from the Cape. 



Sp. 45. maura. This insect is the same as Melolontha car- 

 dui, Fab., and is the type of Latreille's genus Glaphyrus. 



Sp. 49. globator. This insect appears to afford sufficient 

 characters for constituting a sub -genus : it is probably a 

 Schizonycha of Dejean ; as, however, the Baron has not 

 published its generic details, I cannot adopt it. The form 

 is not confined to Africa or Asia, it occurs alike in the old 

 and new world. 



Sp. 51. rauca. An Apogonia of Kirby. M. Laporte men- 

 tions two species from Africa, namely, Ap. africana and 

 pusilla, from Senegal. 



Sp. 54. rufa. I have not seen this insect in any collection 

 but the Banksian : from the description and general ap- 

 pearance it cannot be ranged with any modern genus. 



Sp. 58. errans. No locality is mentioned by Olivier: I have 

 received it from M. Leconte, of the United States. 



Sp. 59. innuba. This insect I have received from Rio Ja- 

 neiro : its country is not mentioned in Olivier. 



Sp. 60. nitidula. Entomologists must be careful not to con- 

 found Mel. nitidula, Fabr., (which is probably an Aniso- 

 plia), with Mel. nitidula of Olivier. The latter insect is 

 probably a Bolax of Fischer. 



Sp. 64. aulica. Olivier has properly changed the annexed 



1 The Monograph is unpublished; a synopsis of the new species is given 

 in the * Mag. Nat. Hist.' vol. ii. n. s. p. 336.— Ed. 



