Les Abeilles de la sous-famille des Halictinae en Nouvelle-Guinée et dans L'archipel Bismarck (Hymenoptera: Apoidea: Halictidae)

During our studies of various collections of Halictinae from New-Guinea and Bismarck Archipelago, 54 species were found: 2 Sphecodes (subgenera Sphecodes and Callosphecodes), 3 Pachyhalictus, 1 Urohalictus, 3 Lasioglossum (subgenera Parasphecodes, Nesohalictus and Ctenonomia) and 45 Homalictus (5 Papualictus and 40 Homalictus s.str.). Among the Homalictus, 21 new species are described: H. micheneri, H. altissimus, H. filiferreus, H. flavipes, H. flammeus, H. goilalaensis, H. gressitti, H. malgiensis, H. minutus, H. morobeensis, H. pilositarsis, H. rufiscopa, H. rufopurpureus, H. scabrosus, H. scutolactescens, H. scutopruinescens, H. spinosus, H. strigilalius, H. subsphecodes, H. trigoniformis and H. wauensis. The Homalictus are classified into four groups and the species are listed (except for Australia).