Rhantus procul sp. nov., a new diving beetle from Central Sulawesi – sister to a species from Sri Lanka (Coleoptera, Dytiscidae, Colymbetinae)

Narakusumo; Raden Pramesa

doi:10.3897/alpento.10.173478

Rhantus procul sp. nov., a new diving beetle from Central Sulawesi – sister to a species from Sri Lanka (Coleoptera, Dytiscidae, Colymbetinae)

Authors: Narakusumo, Raden Pramesa Country: Indonesia DOI: 10.3897/alpento.10.173478 Published: Jan. 1, 2026 Source: Alpine Entomology OpenAlex: View in OpenAlex

Collection: Pensoft Publishers

Keywords: Cloud forest · Topics: Coleoptera Taxonomy and Distribution, Subterranean biodiversity and taxonomy, Coleoptera: Cerambycidae studies

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The diving beetle Rhantus procul sp. nov. is described from around 2,000 m a.s.l. at Mount Pompangeo in Central Sulawesi, Indonesia. Besides Rhantus suturalis (W.S. Macleay, 1825) it is the second species of the genus recorded from Sulawesi. Altogether nine species of the genus are now known from Indonesia. The median lobe of the new species is very similar to Rhantus interclusus (Walker, 1858), endemic to the highlands of Sri Lanka, but the species can be easily distinguished by body size, coloration of the pronotum and the slightly different curvature of median lobe.

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