MICRO-LEPIDOPTERA. 



75 



18. Bactra microtripta, n. sp. 



cJ? 10-11 mm. Head, thorax grey-whitish. Palpi If, grey-whitish, second 

 joint in one example obscurely spotted grey. Antennae minutely ciliated. 

 Fore wings termen straight, $ rather oblique, $ oblique ; whitish, irregularly 

 speckled fuscous and dark fuscous ; costa obliquely strigulated dark fuscous ; 

 sometimes a short fine dark dash in disc about end of cell ; an almost terminal 

 irregular dark line more or less expressed : cilia grey-whitish, obscurely barred 

 fuscous and dark fuscous irroration. Hind wings grey-whitish or whitish-grey, 

 in one $ grey ; cilia whitish. 



Upolu, Apia, Malololelei ; Savai'i, Tuasivi ; February to June, 8 ex. A 

 specimen with forewings whitish-ochreous, with blackish dots on margins, some 

 slight ochreous-grey suffusion on median third of dorsal area and a few blackish 

 strigulae in disc anteriorly, apparently belongs to the same species. 



19. Polychrosis botrana Schiff. 

 Upolu, Malololelei, 2,000 feet, July ; 1 ex. Widely distributed in Europe, 

 Africa, and Australia, imported with the grape-vine, of which the larva is a 

 pest, though it will also feed on several other plants. Also an example from 

 the Ellice Islands ; the insect is therefore probably established in other Pacific 

 islands, but is inconspicuous and generally overlooked. 



20. Polychrosis xylistis Low. 



Upolu, Apia, Malololelei, 2,000 feet ; Tutuila, Pago Pago ; June, September, 

 December ; 2 ex., also 3 in Bishop Museum. Described from a type from 

 Queensland, which is presumably its home ; probably introduced into Samoa 

 with its food-plant, but habits at present unknown. 



21. Articolla prospera Meyr. 



Upolu, Malololelei, 2,000 feet, April, June ; 3 ex. Occurs in India and 

 Australia ; habits unknown, but doubtless artificially introduced into Samoa. 



22. Argyroploce aprobola Meyr. 

 Tutuila, Pago Pago, December ; 1 ex. Originally described from Tonga 

 in 1886, but since found in India, Ceylon, Seychelles, Tonkin, Java, Formosa, 

 New Guinea, and Australia ; probably Indian in origin ; the larva is polyphagous 

 on various cultivated trees and shrubs (Mangifera, Cassia, Lantana, Nephelium, 

 etc.), with which it is introduced. Recently I have seen specimens from the 

 remote island of Rapa. 



