Sahulotrigona

Subgenus Sahulotrigona Engel & Rasmussen

Sahulotrigona includes generally smaller bees relative to Platytrigona (forewing lengths 5.4–6.0 mm in the former, over 7.0 mm in the later), as well as species with a largely glabrous basal area to the metasoma (versus entirely or largely pubescent in Platytrigona ). Like Platytrigona , species of Sahulotrigona lack the stiff, thickened, erect, black bristles so prominent on the mesoscutum and mesoscutellum of Heterotrigona s.str. and the new subgenus described below ( vide infra). Such bristles are shorter and

Genus Austroplebeia Moure, 1961

Austroplebeia cincta (Mocsǡry in Friese, 1898)

Genus Heterotrigona Schwarz, 1939

Subgenus Platytrigona Moure, 1961

Heterotrigona ( Platytrigona) flaviventris View in CoL ( Friese, 1908 [ 1909])

Heterotrigona ( Platytrigona) keyensis ( Friese, 1901) View in CoL

Heterotrigona ( Platytrigona) lamingtonia ( Cockerell, 1929) View in CoL

Heterotrigona ( Platytrigona) planifrons (Smith, 1865) View in CoL

Subgenus Sahulotrigona Engel & Rasmussen, 2017

Heterotrigona ( Sahulotrigona) paradisaea Engel & Rasmussen, 2017

Heterotrigona ( Sahulotrigona) taraxis , n. sp.

Heterotrigona ( Sahulotrigona) tricholoma , n. sp.

Genus Papuatrigona Michener & Sakagami, 1990

Papuatrigona atricornis (Smith, 1865) , n. comb.

Genus Tetragonula Moure, 1961

Subgenus Tetragonula Moure, 1961 *

Tetragonula ( Tetragonula) biroi ( Friese, 1898) View in CoL

Tetragonula ( Tetragonula) clypearis ( Friese, 1909) View in CoL

Tetragonula ( Tetragonula) sapiens ( Cockerell, 1911) View in CoL

* Note that the recently and injudiciously proposed Flavotetragonula Shanas (Shanas & Faseeh, 2019) is a new junior synonym of Tetragonula Moure View in CoL s.str., and some of the purported new species established therein are likely synonyms.

sparser but also present in Sundatrigona , particularly on the mesoscutellum. Three species are currently recognized in Sahulotrigona : H. ( S.) paradisaea Engel & Rasmussen, H. ( S.) tricholoma n. sp., and H. ( S.) taraxis n. sp. (= “ Trigona atricornis ” auctorum ). The subgenus is presently known only from New Guinea.