A new subgenus of Heterotrigona from New Guinea (Hymenoptera: Apidae) Author Engel, Michael S. Division of Entomology, Natural History Museum, and Department of Ecology & Evolutionary Biology, 1501 Crestline Drive - Suite 140, University of Kansas, Lawrence, Kansas 66045 - 4415, USA (msengel @ ku. edu). & Division of Invertebrate Zoology, American Museum of Natural History, Central Park West at 79 th Street, New York, New York 10024 - 5192, USA. Author Rasmussen, Claus Department of Bioscience, Aarhus University, Ole Worms Allé 1, DK- 8000 Aarhus, Denmark (alrunen @ yahoo. com). text Journal of Melitology 2017 2017-11-03 2017 73 1 16 http://dx.doi.org/10.17161/jom.v0i73.6673 journal article 10.17161/jom.v0i73.6673 2325-4467 8057340 urn:lsid:zoobank.org:pub:CF6CC73C-1405-48C5-9C23-6E11DAD4D06B Key to Subgenera of Heterotrigona 1. Basal area of propodeum largely or entirely glabrous, at most with apicolateral patches of setae ........................................................................................ 2 —. Basal area of propodeum entirely pubescent or with a small medial glabrous area [in H . hobbyi (Schwarz) ] [ Indonesia ( West Papua , Moluccas ), Papua New Guinea ] ................................................................................. H . ( Platytrigona ) Moure 2(1). Basal vein (1M) basad 1cu-a ................................................................................... 3 —. Basal vein (1M) distad 1cu-a [ Papua New Guinea , Indonesia ( Papua )] ............. ..................................................................................... H . ( Sahulotrigona ), n. subgen. 3(2). Posterior glabrate zone of metatibial inner surface apically broader than keirotrichiate zone [ Thailand , Singapore , Malaysia (West Malaysia , Sarawak , Sabah ), Brunei , Indonesia ( Java , Sumatra , Kalimantan )] .......................................... ............................................................................... H . ( Heterotrigona ) Schwarz, s.str . —. Posterior glabrate zone of metatibial inner surface apically narrower than or at most as broad as keirotrichiate zone [ Singapore , Malaysia (West Malaysia , Sarawak ), Indonesia ( Sumatra )] ............ H . ( Sundatrigona ) Inoue & Sakagami