Brenthia excusana was described by Walker in 1863 as Simaethis excusana (see reference to the original description below). The holotype is desposited at the BMNH (see images).
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith