Sahulotrigona

Engel, Michael S., 2019, Notes on Papuasian and Malesian stingless bees, with the descriptions of new taxa (Hymenoptera: Apidae), Journal of Melittology 2019 (88), pp. 1-25 : 2-3

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 ( Friese, 1908 [ 1909])

Heterotrigona (Platytrigona) keyensis ( Friese, 1901)

Heterotrigona (Platytrigona) lamingtonia ( Cockerell, 1929)

Heterotrigona (Platytrigona) planifrons (Smith, 1865)

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)

Tetragonula (Tetragonula) clypearis ( Friese, 1909)

Tetragonula (Tetragonula) sapiens ( Cockerell, 1911)

* Note that the recently and injudiciously proposed Flavotetragonula Shanas (Shanas & Faseeh, 2019) is a new junior synonym of Tetragonula Moure 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.