How identify Lesser Yellow Belly

[G.Vega]

Hi!
I looking info about it but can't find - only some photos that are similar (lesser and lesser yellow belly).
So what have Lesser Yellow Belly which don't exist in normal Lesser pattern?
thx for help

To me it's kinda hard to identify since there's not a lot of difference from a normal Lesser & a Lesser YB.. Here's a picture of mine


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