Cassius Blue
Leptotes cassius
Spanish: Cassius azul

Leptotes cassius, the Cassius blue or tropical striped blue, is a butterfly of the Lycaenidae family. It is found in North America in Florida including the Keys, Texas south through the Caribbean, Mexico, and Central America to South America. Strays can be found in New Mexico, Kansas, Missouri and South Carolina.
- 2026-01-18 — observation by zihuadean
- 2025-10-31 — observation by zihuadean
- 2025-03-05 — observation by shawneen
- 2025-03-05 — observation by shawneen
- 2025-02-06 — observation by clausgiloi
- 2025-01-12 — observation by daniel_brito
Interactive card with more photos, sounds and similar species Insects guide iNaturalist Wikipedia
Cite as: “Cassius Blue (Leptotes cassius) at La Saladita”, La Saladita Field Guide, lasaladita.com/species/leptotes-cassius/, updated 2026-09-26. Observation counts and months come from iNaturalist research-grade records within about 50 km of 17.8375°N, 101.7606°W (the survey box also takes in Zihuatanejo, Ixtapa and Troncones); summary text from Wikipedia where present.