IN TROD UC TION clxix 



Australia with orange trees, as was the Australian Mantid Orthodera prasina, the latter 

 being still confined to Kauai. The other importation, Amorbia emigratella, was first 

 noticed in 1902, when the larva was already common on orange trees in Honolulu. 

 A. postvittaniis is a favourite food of Odynerus, especially of O. nigripennis, and its 

 pupae are parasitized by Pimpla hawaiiensis, an imported Mexican Ichneumonid, while 

 its eggs are destroyed by Pentarthron flavum {Trichogramma pretiosa ?). The other 

 pest is at present much less attacked by natural enemies. 



There are 10 species of Capita, all forest insects and no doubt endemic. Some 

 of these are readily attracted by light, but very rarely found in the daytime, though 

 sufficiently common. Some are known to be extremely variable. One is abundant in 

 the drier forests, but the caterpillars', like those of Epagoge (with four species), have 

 not been bred. 



It will be seen that the Tortricidae present a great difference from the Hyponomeu- 

 tidae in that there are no extensive endemic genera, the monotypic Pararrhaptica and 

 Panaphelix being closely allied to apodemic ones, while Adeloneura has only half-a- 

 dozen species, mostly small obscure insects, of which congeners might at any time be 

 found elsewhere. 



TiNEiDAE. — The' two species of Opostega are endemic and the perfect insects are 

 probably difficult to collect. O. dives was found only once, the two individuals were 

 taken running on a leaf of Pelea in the sunshine and one was noticed ovipositing. It 

 is possible that the curious circular mines, that are so conspicuous in various localities 

 in the thick leaves, are formed by the larvae of Opostega^. From these mines one 

 generally breeds only Eulophid parasites. Opogona aurisquaniosa is an imported 

 insect, easily carried in the larval state with coconuts, sugar-cane, bananas and other 

 plants. It usually feeds on dead or dry vegetable matter and is polyphagous. One or 

 two other species, that have reached the islands on imported plants, have been inter- 

 cepted and destroyed. The imported larvae of a pretty species, infesting the drupes of 

 coconuts in Samoa, have more than once been bred to maturity. The species of Ereu- 

 netis are all no doubt introduced, their habits being in some cases like those of Opogona, 

 E. viinuscula and E. flavistriata being easily carried about with sugar-cane. In fact, 

 another species, that infests cane, has still more recently been imported and become 

 very numerous, even in some mountain forests. The dry leaf-sheaths of the sugar- 

 cane afford a favourite food for the caterpillars, which hide between the sheath and the 

 stem. Of E. zebrina little is known. Blackburn took it in Honolulu and I found my 

 specimen on a trunk of the Kukui tree, also on Oahu. E. simulans is very abundant, 

 the caterpillar feeding on dead bark of trees and the moth sometimes is common round 

 the lights or may be seen resting on tree-trunks. It is found from the coast to an 



' Species have since been reared from sandalwood by Mr H. Swezey, and Opostega has been bred by him 

 from Pelea. 



F. H. I. y 



