Thyreus novaehollandiae signatus ( Meyer, 1921 )

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

2. Thyreus novaehollandiae signatus ( Meyer, 1921) , Diamond-waisted Cloak-and-dagger Bee [subspecies of Indomalayan Cloak-and-dagger Bee]

This specific epithet is misleading as the type specimens is believed to have been collected in the Lesser Sunda Islands of Indonesia, most likely from Timor, as opposed to Australia (the erroneous published locality is “Nouvelle- Hollande ”) where there are no verified records ( Lieftinck, 1962). To highlight the correct distribution, we proposed the modifier “Indomalayan” for the common name of the species. Subspecies T. n. signatus was recorded in Singapore in November 1932 by F. N. Chasen ( Lieftinck, 1962) and also by Baker ca. 1917–1918. There are no subsequent local records, although the suitably small-bodied Amegilla (Zonamegilla) korotonensis is found in eastern Singapore and could be a potential extant host.