Neptosternus arnecornelii

Description

Neptosternus arnecornelii is a species of beetle, named after Arne Cornelius. Its holotype was found in West Kalimantan, Indonesia. The specimens were captured floating on tree roots in a rocky mountain stream near a forest. Neptosternus arnecornelii superficially resembles N. biltoni (Hendric & Balk, 1997) from the Togian Islands northeast of Sulawesi. It is a small, broadly ovate species; with its body strongly flattened laterally.