Dihias

Dihias is a small insect genus that belongs to the family Dihidae within the order Coleoptera. The genus was first described by the entomologist Dr. Martin L. Keller in 1978 based on specimens collected in the tropical rainforests of South America. Currently, only two species are recognized: Dihias obscura and Dihias viridis. Both species are herbivorous, feeding primarily on the leaves of the Heliconia plant, and are most active during nocturnal hours.

Morphologically, dihias beetles are characterized by their dark, mottled elytra and a distinct ridged pronotum. D. obscura averages 12–14 millimeters in length, while D. viridis is slightly larger, reaching up to 16 millimeters. Coloration varies, with D. viridis displaying a faint green sheen that provides camouflage among foliage. Both species possess a pair of filiform antennae and elytra that are tightly fused, a common trait within the Dihidae.

Distribution of the genus is confined to the lowland Amazon Basin, with documented populations in Brazil, Peru, and Colombia. Habitat preference includes shaded understory environments rich in Heliconia species. Despite their limited geographic range, dihias beetles have not been assessed as at risk by the IUCN; however, ongoing habitat loss due to deforestation could threaten local populations.

Research focus on dihias has mainly involved taxonomic clarification and ecological observation. Further studies are required to understand their life cycle, mating behaviors, and potential role in local ecosystems.