Hi,
MY experience is that both T.keyserlingii and T. scincus can vary very much in coloration WITHIN their species but it is quite easy to distinguish between both.
But I never had a
female that was smaller than a
male in T. keyserlingii as well as in T. scincus.
I had males that had the same size as the females (yes, males can have larger heads and so on but no considerable difference in size) and I also had smaller males but no smaller females.
So I think that's why your "male" has laid some eggs.
Well that's only my experience maybe someone else experiences something else.
I have pictures of some of my animals here so maybe it can help you out:
left: T. scincus female
right: T. keyserlingii male
left: T. scincus female (largest one I have)
right. T. keyserlingii female
left: T. scincus female
right. T. scincus male
left: T. keyserlingii female (gravid)
right: T. keyserlingii male (smaller than female)
left: T. keyserlingii female (gravid)
right: T. keyserlingii male (same size as female)