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",
Hakalau Forest National Wildlife Refuge numerous deep gulches. Rainfall decreases to about at elevations above , where majestic koa ("Acacia koa") and red-blossomed ōhia lehua ("Metrosideros polymorpha") trees form a closed-canopy forest. Further upslope, above , rainfall decreases to or less and native forest merges into abandoned pastureland where alien grasses and weeds, introduced as forage for cattle, are the dominant vegetation. Since 1989, over 400,000 koa, ōhia, and other native plants have been planted in this area as part of the refuge's reforestation program. The Pua Akala Cabin, located within the refuge, was nominated to the National Register of Historic Places in August 2008.