Laccophilus medialis Sharp, 1882

Hendrich, Lars & Balke, Michael, 2004, Aquatic Coleoptera Of Singapore: Species Richness, Ecology And Conservation #, Raffles Bulletin of Zoology 52 (1), pp. 97-145 : 116-117

Laccophilus medialis Sharp, 1882

( Fig. 21 )

Laccophilus medialis Sharp, 1882: 309 .

Laccophilus cingulifer Guignot, 1956a: 60 ; Brancucci, 1983: 326, and references therein.

Laccophilus medialis Sharp, 1882: 309 Nilsson, 2001: 246 .

Material examined. - 1 female, “ Singapore, 1897, Biro” ( TDMB). ( Guignot, 1956a; Brancucci, 1983). Not seen.

Distribution. – India, Bhutan, Myanmar, Thailand, Laos, Vietnam, West Malaysia, Singapore, Indonesia [Java, Sumbawa, Timor] ( Brancucci, 1983).

Ecology. – A lentic species restricted to forested areas. In West Malaysia the species was collected from shallow and shaded, more permanent forest pools in primary and second growth (older rubber plantations) lowland forest. The bottom consists of mud and a thick layer of rotten leaves. Probably the species still occurs in the Swamp Forest of Nee Soon.

Remarks. – We have not found this species in our survey and it is perhaps extinct in Singapore.

Figures

Figs. 18-23. 18.Hydaticus fabricii (MacLeay, 1825) (Fam. Dytiscidae, 10.5 mm); 19. Leiodytes nicobaricus (Redtenbacher, 1867) (Fam. Dytiscidae, 2.1 mm); 20. Hydrovatus rufoniger rufoniger (Clark, 1863) (Fam. Dytiscidae, 3.6 mm); 21. Laccophilus medialis Sharp, 1882 (Fam. Dytiscidae, 3.3 mm); 22. Copelatus minutissimus Balfour-Browne, 1939 (Fam. Dytiscidae, 4.1 mm); 23. Eretes griseus (Fabricius, 1781) (Fam. Dytiscidae, 13.5 mm).