Insects · La Saladita, Guerrero

Four-spotted Sailor

Dynamine postverta

Spanish: Mariposa marinero mexicana

Dynamine postverta, the Mylitta greenwing or four-spot sailor, is a butterfly in the Nymphalidae family. It is found throughout most tropical and subtropical areas of Central and South America, from Mexico south to Argentina and Paraguay. The habitat includes primary rainforests, humid deciduous woodlands, scrubby grassland and farmland at altitudes up to about 900 metres.

TaxonomyInsecta › Lepidoptera › Nymphalidae

Local records34 research-grade observations within about 50 km of La Saladita (the survey box also takes in Zihuatanejo, Ixtapa and Troncones)

Global records4,563 on iNaturalist

Most recent records2023 – 2025

Months of the 8 most recent records

JanFebMarAprMayJunJulAugSepOctNovDec

Recent local sightings

2025-11-11 — observation by zihuadean
2024-11-21 — observation by vctrndr
2024-11-18 — observation by zihuadean
2024-11-05 — observation by zihuadean
2024-08-31 — observation by daniel_brito
2024-01-06 — observation by zihuadean

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

Cite as: “Four-spotted Sailor (Dynamine postverta) at La Saladita”, La Saladita Field Guide, lasaladita.com/species/dynamine-postverta/, 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.