I20 FAUNA HAWAIIENSIS 



group, and another has occurred on three of the intermediate islands. These fif,ures 

 are however subject to correction, for the Hawaiian species oi Acalles are excessively 

 difficult to collect, and some of them exhibit considerable variability, so that it is neither 

 certain that all the species described are certainly distinct, nor that the forrrs from 

 different islands assigned to a single species are really identical. The species of 

 Dryophtho7'us appear to be less restricted in their distribution ; Kauai has s'x, Oahu 

 two, and Hawaii one peculiar species, but the remaining eight are found o i two or 

 more of the islands ; three indeed are found throughout the group. 



The extensive genus Oodemas has no less than 46 species, and is most richly 

 represented on Kauai, which has 18 species peculiar to it. Oahu and Maui each have 

 just half as many peculiar, whilst Hawaii, Lanai and Molokai have respectively three, 

 two and one. The remaining four species occur on two or more of the islands, but 

 neither of them is found on Kauai. 



Heteramplms would appear to have its head-quarters on Oahu, where are five of 

 the ten known species, and these five are all peculiar to it ; Maui has three species 

 peculiar, and Molokai and Kauai each have one ; that on the latter island would have to 

 be separated generically were it not connected by the Oahuan H. hirtellns with the 

 more usual forms. Three of the Oahuan species are usually found in company on 

 Astelia veratroides, but would appear to be of extremely restricted range within that 

 island, since they are not to be found in many places where the plant is extremely 

 abundant, nor have we found any species attached to the Astelia on the other islands, 

 the Molokai form having been obtained from wet moss, and the others from wet 

 decaying logs. No species of this genus has been found on the large island of Hawaii. 



Anotkeorus has one species quite peculiar to Kauai, Oahu likewise has one, but it 

 is very closely allied to the Maui form, and as both vary, I have some doubt as to their 

 being distinct. A single example from Lanai agrees best with the Maui species. 



The extraordinary genus Nesotocus has one species peculiar to Kauai and one to 

 the Western range of mountains on Maui, the third has been taken both on Haleakala, 

 the Eastern division of this island, and also on Hawaii. 



The remaining indigenous species have been sufficiently referred to above under 

 the genera to which they belong. 



The percentage of the indigenous species of Curculionidae peculiar to the several 

 islands is given in the table. 



