Heteronympha merope

{{Short description|Species of butterfly}}

{{Use dmy dates|date=March 2021}}

{{Use Australian English|date=May 2011}}

{{Speciesbox

| image = Common brown (Heteronympha merope merope) male Kangaroo Island.jpg

| image_caption =

| image2 = Common brown (Heteronympha merope merope) male underside Kangaroo Island.jpg

| image2_caption = both males
Kangaroo Island, South Australia

| taxon = Heteronympha merope

| authority = Fabricius, 1775

| synonyms =

• Satyrus archemor

}}

File:Common brown - female.jpg

Heteronympha merope, the common brown, is a species of butterfly of the family Nymphalidae, endemic to the southern half of Australia. The wingspan is about {{Convert|60|mm}} for males and {{convert|70|mm|abbr=on}} for females.

The larvae feed on Poaceae species, including Brachypodium distachyon, Cynodon dactylon, Ehrharta erecta, Poa poiformis, Microlaena stipoides, Poa tenera and Themeda triandra.{{cite web |url=http://staff.it.uts.edu.au/~don/larvae/nymp/merope.html |title=Heteronympha merope |author=Don Herbison-Evans & Stella Crossley |publisher=University of Technology, Sydney |date=7 May 2008 |accessdate=29 January 2009}} {{Dead link|date=October 2010|bot=H3llBot}} The common brown butterfly is emerging ten days earlier than it did 65 years ago due to the effects of climate change.{{cite web |url=http://www.australiangeographic.com.au/journal/butterfly-cycle-found-to-be-affected-by-climate-change.htm |title=Climate change causing butterflies to emerge 10 days early - Australian Geographic |accessdate=25 March 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20100329064313/http://www.australiangeographic.com.au/journal/butterfly-cycle-found-to-be-affected-by-climate-change.htm |archivedate=29 March 2010 }}