Laccophilus transversalis leptogonus Brancucci, 1983

Hájek, Jiří & Šťastný, Jaroslav, 2005, Two new species of Laccophilus Leach, 1815 (Coleoptera: Dytiscidae) from India and Borneo with notes on other species of the genus, Acta Entomologica Musei Nationalis Pragae 45, pp. 51-58 : 57

Laccophilus transversalis leptogonus Brancucci, 1983

Material studied. 1J, THAILAND, 13 km W Hat Yai [SONGKHLA Prov.], 06°59‘N 100°22‘E, 50 m a.s.l., 10.v.1993, Ban Ko Muang & H. Malicky leg. ( NMW). 1 J, LAOS, VIENTIANE Prov., Vang-Vieng, 18°55′23″N 102°26′55″E, 300 m a.s.l., 10.-15.v. & 01.-06.vi.2001, Jiří Kolibáč leg. ( NMPC). 2 JJ 2 ♀♀, MALAYSIA, PAHANG, Kuala Lipis surr. [04°11′N 102°02′E], 60 m a.s.l., small pools in secondary forest, 13.iv.1997, Balke & Hendrich leg. ( NMPC, further specimens in coll. Hendrich, Berlin).

This taxon was described from eastern Sumatra. Although BRANCUCCI (1983) considered it as a subspecies and presented specimens from Vietnam with median lobe intermediate to L. t. lituratus, its status remains unresolved. The currently known distribution of L. t. leptogonus and L. t. lituratus does not support the hypothesis of geographical subspecies (see also under L. t. lituratus). We believe that L. t. leptogonus represents a separate species, but more material is desirable to answer the question. First records from Thailand, Laos and Malaysia.