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pest in the Pacific Coast states of the United States, and in 

 Australia and Xew Zealand. Here its larvae mine the leaves of 

 potato, tomato. Datura and some other Solaneeous plants. The 

 larvae also bore into the stems and often into the green fruits of 

 tomato, destroying a good many before they are grown, and also 

 attacking the full-grown or ripening fruit. Tobacco leaves are 

 sometimes mined by the larvae, in which case it is called the 

 ''tobacco split- worm." The larvae pupate in some part of the 

 tunnel or place wdiere they have been feeding. 



FAMILY HYPONOMEUTIDAE. 



Enhyposmocoma triviteUa Sw. — This species I have reared 

 from pupae found in their mines in the fronds of Elaphoglossum 

 gorgoneum and E. retlculatum, in the mountains back of Lihue, 

 Kauai. The larva produces a trumpet-shaped mine at first, but 

 eventually eats all of the mesophyll for a considerable space. 

 Pupation takes place within this in a slight cocoon. 



FAMILY CAEPOSIKIDAE. 



Heterocrossa crinifera Walsm. — The larvae mine the leaves 

 of RoUandia rac-emosa. They feed largely in the midrib, follow- 

 ing it outwardly, but eat lateral tunnels out into the mesophyll 

 on both sides as they proceed. Usually there is but one larva in 

 a leaf. I have found this in but one locality so far, on Mt. 

 Olympus, Oahu. The leaves of the shrub were very commonly 

 attacked by it. The leaves are quite large and are not entirely 

 killed by the injury, but many may be seen with the injured por- 

 tion decayed away leaving an irregular hole or space in mid- 

 portion of the leaf. The full-grown larva emerges and passes 

 below to pupate in a slight cocoon amongst dead leaves or trash. 



FAMILY TINEIDAE. 



Philodoria micropefala Walsm. — The larvae of this very 

 small moth mine the leaves of Pipturus albidiis very extensively, 

 and also one or two related trees to a slight extent. In Pipturus, 

 there are often a hundred and more to a leaf — in extra large 

 leaves. The larvae emerge to pupate in white silken cocoons 

 constructed along beside a rib on the under side of the leaf. This 

 species occurs on all of the Islands. 



Philodoria hasalis Walsm. — I have reared this species but 



