Revisional notes on the genus Laccobius. I. Subgenus Glyptolacccobius (Coleoptera: Hydrophilidae)
Species of the subgenus Glyptolaccobius Gentili, 1989, of the genus Laccobius Erichson, 1837, are revised, keyed, and their male genitalia are figured. Twelve species are recognized within the subgenus, of which L. pluvialis sp. nov. (India: Meghalaya), L. shorti sp. nov. (India: Meghalaya) and L. silvester sp. nov. (India: Uttar Anchal) are newly described. A historical outline of the studies on the subgenus and its differential characters within the genus Laccobius are mentioned and discussed.