HyperstomaHyperstoma is a genus of firefly beetles in the family Lampyridae. The genus was considered Monotypic until a second species was described in 2011. The genus is endemic to Sri Lanka.TaxonomyThe genus is closely related to the genera Lamellipalpus and Lamellipalpodes due to having fused terminal and penultimate terga.DescriptionBody length is about 5 to 5.5 mm.SpeciesHyperstoma marginatum Wittmer, 1979Hyperstoma wittmeri Janisova and Bocakova, 2011