Orectochilus (Patrus) corniger Zaitzev, 1910

Hendrich, Lars & Balke, Michael, 2004, Aquatic Coleoptera Of Singapore: Species Richness, Ecology And Conservation #, Raffles Bulletin of Zoology 52 (1), pp. 97-145 : 121-122

publication ID	https://doi.org/ 10.5281/zenodo.13244881
persistent identifier	https://treatment.plazi.org/id/03D687B7-A737-FFBC-3A84-F804BDA64B34
treatment provided by	Felipe
scientific name	Orectochilus (Patrus) corniger Zaitzev, 1910
status

Treatment

Orectochilus corniger Zaitzev, 1910: 224 ; Zimmermann, 1917: 168; Peschet, 1923a: 11; Ochs, 1927b: 117, 122; 1928: 101; 1930b: 69; 1931: 474, 477; 1953: 221; Balke et al., 1999: 326.

Orectochilus corporaali Peschet - Yang, 1992 (part).

Material examined. – 58 specimens – 1 ex, Bukit Timah , NS168A, 1 Jul.1994 ( ZRC) . Central catchment area – 23 ex, Seletar stream, 20 Jan.1992 ( ZRC) ; 8 ex, Nee Soon Swamp , 6 May.1992 and 13 Jun.1994 ( ZRC) ; 3 ex, Mandai Lake Road, 16 May.1994 ( ZRC) . Other areas - 23 ex, Lorong Banir, June1994 ( ZRC) .

Distribution. – The typical form has a wide distribution including Vietnam, Thailand, West Malaysia, Indonesia: Sumatra, Java, Borneo ( Ochs, 1927b, 1928, 1953; Mazzoldi, in litt.). We have previously reported this new subspecies from Singapore (Balke et al., 1999).

Ecology. – Most specimens were collected in clear and oxygen rich water in well shaded forest streams.

Remarks. – This is the smallest and most common Orectochilus in Singapore, and was formerly identified as O. corporaali ( Yang, 1992) . Singapore specimens belong to a new subspecies which is restricted to southern tip of the Malay Peninsular and the island of Bintan, Indonesaia (Paolo Mazzoldi, in litt.). He is currently revising the genus.