Orectochilus (Patrus) andamanicus Régimbart, 1884

Hendrich, Lars & Balke, Michael, 2004, Aquatic Coleoptera Of Singapore: Species Richness, Ecology And Conservation #, Raffles Bulletin of Zoology 52 (1), pp. 97-145 : 121

publication ID	https://doi.org/ 10.5281/zenodo.13244881
DOI	https://doi.org/10.5281/zenodo.13245210
persistent identifier	https://treatment.plazi.org/id/03D687B7-A737-FFBD-3A5B-FB28BAA64F4D
treatment provided by	Felipe
scientific name	Orectochilus (Patrus) andamanicus Régimbart, 1884
status

Treatment

Orectochilus andamanicus Régimbart, 1884: 435 ; Ochs, 1929: 403; Balke et al., 1999: 326.

Material examined. – 8 specimens - Central catchment area - 2 ex., Seletar Reservoir , 16 May.1994, NS 134c, coll. H. K. Lua ( ZRC) ; 3 ex., Nee Soon Swamp Forest , 14 Jun.1994 ( ZRC) ; 2 ex, Chestnut Drive , 9 Jun.1994 ( ZRC) ; 1 ex., Seletar Stream , May.1991 ( ZRC) .

Distribution. – India, Andaman Islands, Myanmar, Thailand, West Malaysia ( Ochs, 1929 and Mazzoldi, in litt.), Singapore (Balke et al., 1999).

Ecology. – In Singapore specimens were collected in clear and well shaded streams. Orectochilus andamanicus is a rare whirligig and belongs to a group of species ( O. spiniger - group) which occur in shaded clearwater streams, mainly in forested areas of the lowlands. The beetles usually circle under fallen logs and in undercut riverbanks (Mazzoldi, in litt.).