Cryptophlebia illepida Cryptophlebia illepida Cryptophlebia illepida is a species of moth in the family Tortricidae that is endemic to the islands of Kauai, Oahu, Molokai, Maui, Lānai and Hawaii. Common names include koa seedworm, klu tortricid, koa seed moth, litchi borer, litchi moth, macadamia nut borer and macadamia nut moth. It was first described by Arthur Gardiner Butler in 1882. The wingspan is 12–25 mm. It is an extremely variable species. The larvae feed on a wide range of plants. Recorded food plants are "Acacia confusa", "Acacia farnesiana", "Acacia koa", "Acacia koaia", "Alectryon macrococcus", "Caesalpinia kavaiensis", "Dodonaea viscosa", "Inga edulis", "Litchi chinensis",
Acacia koa there are few koa remaining which are both large and straight enough to do so today. In areas where cattle are present, koa regeneration is almost completely suppressed. However, if the cattle are removed, koa are among the few native Hawaiian plants able to germinate in grassland, and can be instrumental in restoring native forest. It is often possible to begin reforestation in a pasture by disk harrowing the soil, as this scarifies seeds in the soil and encourages large numbers of koa to germinate. Experiments at the Hakalau Forest National Wildlife Refuge have shown that ōhia lehua ("Metrosideros polymorpha")