Cosmopterix phyllostachysea

Cosmopterix phyllostachysea is a moth of the family Cosmopterigidae. It is known from China (Jiangxi)^[1][2] and Japan.^[1][2][3]

Cosmopterix phyllostachysea
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Cosmopterigidae
Genus:	Cosmopterix
Species:	C. phyllostachysea
Binomial name
Cosmopterix phyllostachysea Kuroko, 1957

The length of the forewings is about 6 mm.^[1] The larvae have been recorded feeding on bamboo, specifically on Phyllostachys bambusoides in Japan.^[1] They mine the leaves of their host plant. The mine has the form of a linear-blotch mine. The linear starts small, but gradually widens. The last instar larvae create an oval chamber. It later makes a smaller overwintering chamber of silk-like fiber within this bigger chamber. After overwintering, the larvae begin feeding on the mesophyll in March.