Hi,
TO me, without seeing a picture, it sounds like your male is a Mandarin phase. This is a different subspecies from your Green.
The green is a Boa mandrita volontany and the Mandarin is a Boa mandrita mandrita.

I am not one for crossing rare boas, and I consider Madagascan tree boas to be fairly rare.

I would imagine the offspring, if they produce, to be a relative mix of the two parents.

Any pictures of the male?

Warren
-----
Dr Warren Booth / Director USARK
North Carolina State University
Department of Entomology