The genus Silpha Linnaeus, 1758 in Silphinae includes 33 species worldwide. This group is flightless and known to feed on invertebrate carcasses from the ground surface. In South Korea, 3 species have been recorded, and S. koreana Cho& Kwon, 1999 is an endemic species, distributed only Mt. Taebaek and Mt. Mindung. Up to date the immature stages of the species has never been studied although the species has significant value as an endemic species. The present study is the very first one ever conducted describing the larval morphological characters of S. koreana along with images of larval stages. Furthermore, we report observations on developmental lengths for each stages of the species.

• Gyu Young Han(Division of Forest Biodiversity, Korea National Arboretum) Corresponding author
• Seung-Su Euo(Division of Forest Biodiversity, Korea National Arboretum)
• Jun-Min Seo(Division of Forest Biodiversity, Korea National Arboretum)
• A Young Kim(Division of Forest Biodiversity, Korea National Arboretum)
• Il-Kwon Kim(Division of Forest Biodiversity, Korea National Arboretum)