Le quite para ver errores:
Warning: mysql_fetch_array() expects parameter 1 to be resource, string given in optselect.php on line 10
Warning: mysql_fetch_array() expects parameter 1 to be resource, string given in optselect.php on line 13
Warning: Invalid argument supplied for foreach() in
optselect.php on line 20
Código PHP:
<select name"Colmena"><?php GenerarListaApiColmena(); ?></select>