Pls help ID Corydora

[dc88]

I have 4 of these for about a year and now left with 1.



Recently I bought a few more, thinking they are the same. At the LFS these were not in good condition and I didn't pay attention to the details.
Now their differences are obvious:



The 2 species don't school together, don't seem to communicate with each other.

I probably need to get a few of the first one to keep a company.
I think these are pretty common species in LFS here.

Do you know their IDs ?

[andee619]

Hi. The first pic is C. trilineatus and the second one is C. sterbai. : )