T. chalceus have a large eye to head ratio, their eyes are very big when compared to the size of their heads.Absolutely.
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View attachment 1431387
Would you agree that these are T. argenteus and not chalceus?
T. argenteus have a small eye to head ratio, their eyes are small when compared to their heads. Their eyes are also positioned on the upper portion of the face.
If you ask me, I think yours are T. argenteus. But you might want to compare them with some photos on google.