Insects · La Saladita, Guerrero

Ceraunus Blue

Hemiargus ceraunus

Spanish: Mariposa átomo

Ceraunus Blue (Hemiargus ceraunus)
Photographed by zihuadean on iNaturalist · CC-BY-NC

Hemiargus ceraunus, the Ceraunus blue, is a butterfly in the Lycaenidae family. It is found in the southwestern United States, southern Texas, Florida and the Florida Keys south through the West Indies, Mexico and Central America to South America. Strays may be found in North Carolina, Missouri, Kansas and Nevada. The habitat consists of open woodland, desert scrub, dunes, pastures, road edges and vacant lots.

TaxonomyInsecta › Lepidoptera › Lycaenidae
Local records49 research-grade observations within about 50 km of La Saladita (the survey box also takes in Zihuatanejo, Ixtapa and Troncones)
Global records27,108 on iNaturalist
Most recent records2025 – 2026
Months of the 8 most recent records
JanFebMarAprMayJunJulAugSepOctNovDec
Recent local sightings

Interactive card with more photos, sounds and similar species Insects guide iNaturalist Wikipedia

Cite as: “Ceraunus Blue (Hemiargus ceraunus) at La Saladita”, La Saladita Field Guide, lasaladita.com/species/hemiargus-ceraunus/, 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.