Segenter Waterfall (SWF) is one of the ecotourism spots in the Nuraksa Forest Park, Lombok, Indonesia that requires conservation efforts to be optimally and sustainably utilised. This necessitates data related to the synecology of important ecosystem components, namely butterflies. Butterflies play an important role in pollinating plants for ecosystem sustainability. This research aims to analyse the diversity of Lepidoptera suborder Rhopalocera at SWF. The research was conducted during January-June 2024 using direct survey techniques with sweeping net. Sampling locations included the downstream watercourse, around the SWF, and the upstream watercourse. The collected data consisted of species richness and the number of individuals per butterfly species. The data obtained were analysed using the Shannon-Wiener diversity index, Evenness index, and Simpson's dominance index. During the observations, we found a total of 24 butterfly species represented by 5 families. The total number of specimens successfully collected was 84 individuals, with Jamides celeno being the most predominant species. The ecological index analysis results showed that H’ = 3.115, E = 0.980, and C = 0.047. This indicated that the diversity of Lepidoptera from the suborder Rhopalocera is considered high. SWF has important value for the community as a source of clean water, tourist destination, conservation centre, cultural ritual site, and environmental education facility. This needs to be maintained so that the SWF area can become a sustainable ecotourism area.
Ilhamdi et al. (Mon,) studied this question.