Scaphisoma laminatum

Ivan Löbl & Ryo Ogawa, 2016, On the Scaphisomatini (Coleoptera, Staphylinidae, Scaphidiinae) of the Philippines, IV: the genera Sapitia ACHARD and Scaphisoma LEACH, Linzer biologische Beiträge 48 (2), pp. 1339-1492 : 1407

5.2.17. The Scaphisoma laminatum species group

This group is here established to include three Southeast Asian species, S. laminatum LÖBL, 1972, S. malaccanum ( PIC, 1915) and S. operosum LÖBL, 1990. The aedeagi of these species are large and symmetrical, have lobed, expanded parameres and complex internal sacs, similar to those in members of the S. pictum and S. binhanum groups. Unlike aedeagi in members of these two groups, the median lobes in species of the S. laminatum group have two rod-like, strongly sclerotized and parallel branches on the dorsal side of the apical process.