Ceratina perforatrix is a relatively small bee, the female is 9 to 10.5 mm long, the male 8 to 9 mm. The body is metallic shiny blue, green or bronze. Wikipedia
Spotted at Choa Chu Kang – July 2021
Thanks Melissa Ong and Zestin Soh Bees & Wasps of Singapore for the ID
