Myrmecia can refer to:

• Myrmecia (alga), genus of algae associated with lichens
• Myrmecia (ant), genus of ants called bulldog ants
• Myrmecia (skin), a kind of deep wart on the human hands or feet

• Copromorpha myrmecias or C. myrmecias, a species of moth
• Myrmeciinae, a subfamily of ant

This disambiguation page lists articles associated with the title Myrmecia.
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