202 F. p. PASCOE 



too, a want of correlation in the characters, and this has led 

 to an almost excessive multiplication of genera. Another diffi- 

 culty is the extreme variability of some of the species, and it 

 is only such a fine series of specimens as this collection con- 

 tains that places the specific identit^v of such beyond a doubt. 



The Curculionidse of Nev^ Guinea and the Malay Archipelago 

 seems to me to belong to a different zoological region to that 

 of Australia. The large group of Amycterina3, so common 

 in the latter appears to be unknown; other large groups, such 

 as the Behnse, Leptopinai , Gonipterinoe , Haplonychina^ etc. are 

 represented by one or two species only. On the other hand 

 Rhinoscaplici, Apocyrliis, Coptorhynchus, Alcides, the Mnema- 

 chinai , Zygopina; , Isorhyncliiria3 (with numerous species in 

 Mr. Wallace's collection) Calandrinse, etc. are absent or but 

 poorly represented in Australia. Some intermingling of species, 

 as might be expected, occurs in the Cape York peninsula, 

 as is shewn in the collection made at Somerset. 



I have followed Lacordaire in the arrangement but have in 

 a few cases raised his « sous-tribes » to a higher rank partly 

 for convenience but also , as in his « Cryptorhynchides » , be- 

 cause 1 think their characters require it. 



BRACHYDERIN/E. 

 Ottii^tira,. 



Pascoe, Journ. Linn. Soc. XI, p. 440. 



1. O. bicornis, Pascoe, 1. c. p. 441. 



Hab. Ramoi (Nova Guinea), L. M. D'Alberlis. 



Mr. L. M. D'Albertis's specimens are much darker than the 

 solitary individual found by Mr. Wallace, and which served as 

 the type. 



2. O. irrorata, n, ap. Robusta, dense brunneo-squamosa, maculis albis mi- 

 nutis adspersa ; antennse testacesc ; prothorax latitudine longitudine acquali, 

 mcdiocriter remote sed distinctc pnnctatus ; scutellum oblongum ; elytra pro- 

 thoracc multo latiora, seriatim leviter punctata, punctis approximatis, in- 

 ter.^titiis subtilissime gi-anulatis, postice singulis sj)ina conica juxta suturam 

 armatis; femora mutica ; tibiae anticaj validae, intus barbataj. Long. 5 mm. 



