The larvae eat ant brood and live in ant nests. There are approximately 56
Afrotropical species in Microdon of which 15 are known from southern
Africa (Andrew Whittington pers. comm.).
The following photographs were taken by Simon van Noort of puparia and adults
(probably of Microdon nigrocyaneus)
found in a Technomyrmex pallipes ant nest inside a VCR in a home in Cape
Town.