This butterfly looked like a brown leaf. After taking a few pictures, I disturbed it hoping to would relocate to a place where I could get better pictures, but it flew off. I was not able to observe its upper wings.
There appears to be three subspecies of Azure Hairstreaks in Madagascar. I am not sure which one this might be. Maybe someone here can list the specific subspecies. I learned this from an article at this web locations: https://metamorphosis.org.za/articlesPDF/1218/415%20Genus%20Hemiolaus%20Aurivillius.pdf