COLEOPTERA 



Coccinella repanda: Common everywhere, especially in cane 



fields, feeding upon aphis and young leaf-hoppers. 

 Cryptolaernus montrouzieri: Common, feeding upon cane mealy 



bugs, and the mealy bugs of guava and alligator pear. 

 Rhizohius ventralis: x^bundant, feeding upon mealy bugs on 



guava and alligator pear. 

 Platyomus lividigaster : Common, feeding upon aphis of various 



species. 

 Scymnus vividus: Common, feeding upon cane aphis. 

 Vedalia cardinalis: Two specimens seen at Ookala feeding upon 



cottony cushion scale. 

 Sphenophorus obscuriis: Found on all sugar plantations, but 



not doing any special damage except in a few. 



HEMIPTERA 



Icerya purchasi: A few seen in Hamakua District. 



Orthezia insignis: Was not seen on the island. 



Trechocorys calceolariae: (Sugar-Cane Mealy-Bug.) A few 

 on most plantations, but doing no special damage. Mealy 

 bugs are very abundant on guava, palm, and alligator pear. 



Aphis sacchari: Cane Aphis. A few found on most plantations 

 but usually of not much significance. 



Siphanta acuta: Very abundant, feeding upon coffee, mango, 

 sumac, and other shrubs. 



Perkinsiella saccharicida: Plenty of the leaf -hoppers on most 

 plantations, but in most cases the managers consider them on 

 the decline. This is probably due to the increase in abund- 

 ance of their insect enemies. 



Oechalia griseus: Common in the higher cane fields of Kau, 

 feeding upon leaf-hoppers and leaf-rollers. 



Zeliis pcregriniis: Common on the windward side of the island. 



ReduvioliiS blackburni: Common in the cane fields everywhere. 



ORTHOPTERA 



Anisolaois annulipes and 



Chelisoches morio: These two earwigs feed upon leaf-hop- 

 pers, the former at the north end of the island and the latter 

 more generally distributed. 



Cockroaches : Several species abundant in situations they are 

 respectively accustomed to. 



