Redescriptions are given at species- and subspecies levels for the smilax (1 species), the hapale (1 species), the ada (1 species) and the sari groups (6 species) in the subgenus Terias. A new subspecies of ada is described from Indo-China. The following aspects of each recognized species and subspecies are presented: current combination, synonymy, diagnosis, external features, male and female genitalia, chromosome number, variation (seasonal and geographical), type material examined, material studied, taxonomic remarks, relationship, distribution, habitat, habits, early stages; adults of every recognized taxon, and male and female genitalia of every species are illustrated.
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