"Defined by forewing with CuP absent (parallelism with other Gelechioidea), female with retinaculum consisting of a series of anteriorly directed scales between CuA and R (parallelism with other Gelechioidea), second abdominal sternum with venula, venula + apodeme, orapodeme (polymorphy), forewing with R5 terminating on outer margin or on costa (polymorphy). Gnathos a slender band fused to tegumen, forming non-articulated mesial hook, abdominal terga II–VII crossed by bands"
(2).