526 



valuable of the two. This, however, has not occurred in Australia 

 or Fiji. In spite of delays on the voyage, a number of C. mundnlus 

 were brought back to Hawaii in good condition, and it is hoped to 

 start a colony with them, and eventually to estabhsh the bug in the 

 sugar-cane fields. As the rate of increase is slow and the supply of 

 food for large numbers will not be easy to maintain, it is suggested 

 that a colony should be brought from Fiji, which is only eight days 

 distant. It is proposed to cease work on Drypta until G. munduliis has 

 become established and its effect on the leafhopper is known. 



Nut -grass, which is abundant throughout Queensland, chiefly in . 

 cultivated land, is frequently infested with Antonina sp. The work 

 of this scale is being investigated, and if it is considered of sufficient 

 importance, more will be procured from Australia [see, however, 

 R.A.E., A, iii, 364]. Sugar-cane is apparently not attacked by it. 



Search was made in likely localities for Syagrius fulvitarsis, Pasc. 

 (fern-weevil), but without success. It is apparently scarce under 

 natural conditions though abundant at times in greenhouses. A good 

 deal of investigation is necessary before control of this weevil can be 

 hoped for. 



Pemberton (C. E.). An Entomological Inspection of the Kohala 

 District. — Hawaiian Planters'' Record, Honohdu, xxiii, no. 3, 

 September 1920, pp. 138-141. 



Owing to the numbers of wireworms present in the Kohala district 

 and the damage caused by them, an inspection of the region has been 

 made. The two most injurious species are Monocrepidius exul and 

 Sirywdactijlus cinnamoineus, but both were rare when the inspection 

 was made. The adults of the latter beetle were frequently seen at 

 lights. , One larva was found in a cane-stool in the ground, but was 

 not feeding upon the cane and apparently does no injury to it. It 

 was thought that wireworms were attracted to some localities by the 

 presence of Pantomorus fuUeri, but this is evidently not the case, for 

 in some districts where P. fulleri was abundant wireworms were 

 exceedingly scarce. The grubs of P. fulleri apparently do no important 

 damage to sugar-cane, though they no doubt feed upon the tender 

 roots. The adult beetle eats conspicuous notches in the cane leaves, 

 but Verbe?ia is apparently preferred. 



The parasite, Scolia [manilae], introduced to combat the beetle, 

 Anomala [orientalis], was found to be established in Kohala. This 

 wasp has also been observed attacking the Japanese beetle [Adoretus 

 umhrosKs], and it is hoped that some benefit may result in the future. 

 Leafhoppers [Perkinsiella saccharicida] are found everywhere in Kohala, 

 and are heavily parasitised by Paranagrus optahilis and Ootetras- 

 lichus formosanvs. A few were also found parasitised by Dryinids, 

 and an adult of Pseudogonatopus hospes was taken. Gonocephalum 

 seriatum, which normally feeds on trash, is a very prevalent beetle 

 in the cane fields of Kohala, and its feeding habits should be further 

 studied. It probably feeds only on decaying cane, roots of weeds and 

 other decomposed vegetable matter, but there is a possibility that it 

 may attack living cane roots to some extent. Its numbers are checked 

 in Oahu by a parasite, though none has been observed in Kohala. 



