The grewiella group

This group is comprised of only one species Phyllonorycter grewiella . The forewing pattern of P. grewiella is very distinct. A basal streak runs along the costal margin and there is a striking white strigula on the dorsal margin whereas any white distict strigula is absent on the costal margin. Male genitalia are very distinctive because of their very large and broad valva, and their large, bidentate sternum VIII. Female genitalia of this group lack a developed sterigma. Larvae of the grewiella species group feed on Malvaceae and create upperside narrow tentiform mines.