(n.pl.) A division of Lepidoptera, including the butterflies; -- so called because they fly only in the daytime.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). diurna. Retrieved September 29, 2026, from http://smartdefine.org/diurna/definitions/1999537 |
| Chicago | Webster's. 2011. "diurna" http://smartdefine.org/diurna/definitions/1999537 (accessed September 29, 2026). |
| Harvard | Webster's 2011, diurna, Smart Define, viewed 29 September, 2026, <http://smartdefine.org/diurna/definitions/1999537>. |
| MLA | Webster's. "diurna" 27 May 2011. Web. 29 September 2026. <http://smartdefine.org/diurna/definitions/1999537> |