There are several articles here that address theming field collections but none that specifically cover the naming conventions required to actually get them recognized by Drupal.

field--field-field-collection-name.tpl.php does not work for me. Perhaps because I am theming the edit page of my field collection, but field--field-collection-name--edit.tpl.php doesn't work either. I have tried every permeation and order of names I can think of with no success.

Surely there is a way to theme a page whose URL is domain-name/field-collection/field-field-collection-name/\*/edit.

Any help?