Narathura democritus (Fabricius), a member of this family, was most frequently found in June and July at the SF site because it often flew in the open sunshine. In contrast, Danaidae were not found in baited traps at the SF site. There was no obvious reason for this, but, the abundance of this species may also depend on the distribution of its host plants. Ridionidae were rarely found, because this family has few species. Butterflies at other families (Papilionidae, Satyridae, Pieridae, Amathusiidae and Hesperiidae), were usually common but there were also uncommon and rare species.10 The occurrence of rare species may provide important information for conservation, but a more accurate and rapid assessment of the condition of the habitat may be obtained by monitoring a carefully selected group of locally common species.