The following notes are written in the hope of supplementing what has been already published on the life-history of the Fig-tree Moth. In particular, the length of duration of the separate larval instars does not seem to have been given before. The observations began with the finding, on 27th May 1928, of caterpillars and eggs on fig-trees at Karradah, on the left bank of the Tigris below Baghdad. They were continued mainly in the entomological laboratory of the Agricultural Institute at Rustam, a few miles away, and were perforce discontinued after 21st June, as I had then to leave Baghdad on a tour of inspection and, shortly after my return, I fell ill.