Taxonomic study describes new species and synonyms of Psammoecus in the Indian subcontinent, suggesting biodiversity insights.
Diagnoses for species of the genus Psammoecus Latreille, 1829 known from the Indian subcontinent are provided. Three new species of Psammoecus are described: Psammoecus convexicollis sp. nov., P. pandu sp. nov., and P. rahu sp. nov. Psammoecus incommodus (Walker, 1859), formerly synonymised with P. trimaculatus Motschulsky, 1858, is restituted. Six new synonyms are discovered: Psammoecus convexus Grouvelle, 1888 = P. khasia Pal, 1985 syn. nov.; Psammoecus hirsutus Olliff, 1883 = P. tereticollis Grouvelle, 1919 syn. nov.; Psammoecus incommodus (Walker, 1859) = P. gratiosus Grouvelle, 1908 syn. nov. and = P. labyrinthicus Yoshida & Hirowatari, 2014 syn. nov.; Psammoecus nitidus Grouvelle, 1908 = P. impressicollis Grouvelle, 1908 syn. nov. and = P. personatus Grouvelle, 1919 syn. nov. Faunistic data, including numerous new records for the Indian subcontinent and adjacent areas, are provided.
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Michaël Karner (2026) studied this question.
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