THE CLASSIFICATION OF THE OSMIINI OF THE EASTERN-HEMISPHERE (HYMENOPTERA, MEGACHILIDAE)

A list of genus-group names of Osmiini of the eastern hemisphere, incl uding the Heriades group, is provided, with references to original des criptions and to synonyms. Keys to the 18 genera found in the eastern hemisphere, and to subgenera where they are recognized, are presented. Much of the text consists of notes explaining various classificatory decisions, which were often arbitrary in view of the lack of (and diff iculty of making) phylogenetic studies. The following are new subgener a and three new species: Chelostoma (Eochelostoma) Griswold, type Heri ades aureocincta Bingham, 1897. Heriades (Amboheri ades) Griswold, typ e Heriades canaliculata Benoist, 1931; H. (Pachyheriades) Griswold, ty pe Eriades langenburgicus Strand, 1911; H. (Rhopaloheriades) Griswold and Michener, type Heriades clavicornis Morawitz, 1875; H. (Toxeriades ) Griswold type Heriades apriculus Griswold n. sp.; H. (Tyttheriades) Griswold, type Heriades schwarzi Griswold n. sp. Hoplitis (Chlidopliti s) Griswold, type Hoplitis heinrichi Zanden, 1980; H. (Cologlitis) Gri swold, type Hoplitis premordica Griswold n. sp.; H. (Nasutosmia) Grisw old and Michener, type Osmia nasuta Friese, 1899. Othinosmia (Afrosmia ) Griswold, type Othinosmia stupenda Griswold, 1994. Protosmia (Dolich osmia) Griswold, type Thaumatosoma burmanicum Bingham, 1895; P. (Nanos mia) Griswold, type Protosmia asensioi Griswold and Parker, 1987. Wain ia (Wainiella) Griswold, type Heriades sakaniensis Cockerell, 1936. Ne w descriptive material and illustrations are provided for Jaxartinula malyshevi Popov, here placed within the genus Hoplitis. Anthocopa is r estricted to the old world and is regarded as a subgenus of Hoplitis; American species formerly placed in Anthocopa are placed in the genus Atoposmia.