Heterotrigona (Sundatrigona) moorei Schwarz, 1937

Ascher, John S., Soh, Zestin W. W., Chui, Shao Xiong, Soh, Eunice J. Y., Ho, Benjamin M., Lee, John X. Q., Gajanur, Anya R. & Ong, Xin Rui, 2022, The bees of Singapore (Hymenoptera: Apoidea: Anthophila): First comprehensive country checklist and conservation assessment for a Southeast Asian bee fauna, Raffles Bulletin of Zoology 70, pp. 39-64 : 46

3. Heterotrigona (Sundatrigona) moorei Schwarz, 1937 , Moore’s Stingless Bee

This species was recorded from Singapore based on the holotype of Trigona (Tetragona) matsumurai ( Sakagami, 1959) , with no subsequent local records ( Sakagami, 1975). Unlike the other stingless bees recorded as Nationally Extinct, there is some reason to hope for rediscovery of H. moorei , given its small body size, superficial resemblance to the ubiquitous Tetragonula valdezi (= laeviceps sensu Sakagami, 1978 , in part; and sensu Ascher et al., 2019), and its specialised nesting habits ( Sakagami & Inoue, 1989). We did not observe this inconspicuous species at PBS.