References:
[1] Ascher JS, Risch S, Soh ZWW, Lee JXQ, Soh EJY. Megachile leaf-cutter and resin bees of Singapore (Hymenoptera: Apoidea: Megachilidae). Raffles Bull Zoology 2016;32(Suppl):33-55. | Read article |
[2] Soh ZWW, Ngiam RWJ. Flower-visiting bees and wasps in Singapore parks (Insecta: Hymenoptera). Nature in Singapore 2013;6:153-172. | Read article |
[3] Chan KL. The hornets of Singapore: Their identification, biology and control. Singapore Medical Journal 1972;13(4):178-187. | Read article |