Revision of the Oriental Chaetocnema species (Coleoptera, Chrysomelidae, Galerucinae, Alticini)

The Oriental species of Chaetocnema (Coleoptera, Chrysomelidae,Galerucinae, Alticini) are revised. There are 85 valid species, including 19 New Species: Chaetocnema angustifrons sp. nov.; Chaetocnema appendiculatus sp. nov.; Chaetocnema baoshanica sp. nov.; Chaetocnema dapitanica sp. nov.; Chaetocnema glabra sp. nov.; Chaetocnema greenica sp. nov.; Chaetocnema jinxiuensis sp. nov.; Chaetocnema latapronotus sp. nov.; Chaetocnema midimpunctata sp. nov.; Chaetocnema nigrilatus sp. nov.; Chaetocnema parafusiformis sp. nov.; Chaetocnema paragreenica sp. nov.; Chaetocnema paraumesaoi sp. nov.; Chaetocnema hongkongensis sp. nov.; Chaetocnema purerulea sp. nov.; Chaetocnema reteimpunctata sp. nov.; Chaetocnema sabahensis sp. nov.; Chaetocnema subbaslis sp. nov.; Chaetocnema trapezoidus sp. nov. Fiftenn New Synonyms are proposed: Chaetocnema assamensis Scherer, 1969 (Syn. Nov.) = Chaetocnema hainanensis Chen, 1932; Chaetocnema birmanica Jacoby, 1892 (Syn. Nov.) = Chaetocnema malayana Baly, 1877; Chaetocnema ebenina Warchalowski, 1973 (Syn. Nov.) = Chaetocnema yiei Kimoto, 1970; Chaetocnema flavipennis Medvedev, 1996 (Syn. Nov.) = Chaetocnema granulicollis Jacoby, 1896; Chaetocnema harita Maulik, 1926 (Syn. Nov.) = Chaetocnema westwoodi Baly, 1877; Chaetocnema himalayana Medvedev, 1993 (Syn. Nov.) = Chaetocnema melonae Chen, 1934; Chaetocnema kwangsiensis Chen, 1939 (Syn. Nov.) = Chaetocnema hainanensis Chen, 1932; Chaetocnema loriae Jacoby, 1905 (Syn. Nov.) = Chaetocnema nigrica Motschulsky, 1858; Chaetocnema nepalensis Scherer, 1969 (Syn. Nov.) = Chaetocnema bella Baly, 1877; Chaetocnema nitens Baly, 1877 (Syn. Nov.) = Chaetocnema nigrica Motschulsky, 1858; Chaetocnema placida Jacoby, 1896 (Syn. Nov.) = Chaetocnema bella Baly 1877; Chaetocnema shanensis Bryant, 1939 (Syn. Nov.) = Chaetocnema bella Baly 1877; Chaetocnema subcostata Jacoby, 1889 (Syn. Nov.) = Chaetocnema wallacei Baly, 1877; Chaetocnema vietnamica Chen & Wang, 1980 (Syn. Nov.) = Chaetocnema modigliani Jacoby, 1896; Chaetocnema vietnamica Medvedev, 2009 (Syn. Nov.) = Chaetocnema wallacei Baly, 1877. Chaetocnema vietnamica Medvedev, 2001 is a new junior Homonym of Chaetocnema vietnamica Chen & Wang, 1980. Chaetocnema melonae Chen, 1934 Status Restored and resurrected from synonymy with Chaetocnema duvivieri Jacoby, 1892 in Medvedev, 2001: 613. Two subspecies are raised to species level: Chaetocnema taiwanensis Chûjô, 1965 New status for Chaetocnema tonkinensis taiwanensis Chûjô, 1965 and Chaetocnema yunnanica Heikertinger, 1951 New status for Chaetocnema discreta yunnanica Heikertinger, 1951. Lectotypes are designated for 25 species: Chaetocnema minuta Jacoby, 1896; Chaetocnema granulicollis Jacoby, 1896; Chaetocnema kwangsiensis Chen, 1939; Chaetocnema longipunctata Maulik, 1926; Chaetocnema montivaga Maulik, 1926; Chaetocnema basalis Baly, 1877; Chaetocnema parvula Baly, 1877; Chaetocnema nitens Baly, 1877; Chaetocnema geniculata Jacoby, 1896; Chaetocnema simplicifrons (Baly, 1876); Chaetocnema sticta Maulik, 1926; Chaetocnema sumatrana Jacoby, 1896; Chaetocnema wallacei Baly, 1877; Chaetocnema alticola Maulik, 1926; Chaetocnema belli Jacoby 1904; Chaetocnema cognata Baly, 1877; Chaetocnema squarrosa Baly, 1877; Chaetocnema concinnipennis Baly, 1877; Chaetocnema malayana Baly, 1877; Chaetocnema birmanica Jacoby, 1892; Chaetocnema merguiensis Bryant, 1941; Chaetocnema pusaensis Maulik, 1926; Chaetocnema singala Maulik, 1926; Chaetocnema westwoodi Baly, 1877; Chaetocnema harita Maulik, 1926.