Long-flange Millipede
Orthomorpha coarctata
Spanish: Milpiés asiático
Orthomorpha coarctata (alternately known as Asiomorpha coarctata) is a widely introduced species of Polydesmidan millipede of the family Paradoxosomatidae. It is presumed native to Southeast Asia but due to transport by humans occurs in tropical and sub-tropical areas throughout the world, including the Hawaiian Islands, the West Indies, Gulf Coast of North America, and the Galápagos Islands Males range from 14.5–20.5 mm in length and 1.5 to 2.7 mm wide while females are somewhat larger ranging from 16.5–27.5 mm... Most often recorded in Nov, Oct, Jan.
- 2026-10-12 — observation by robertorojo
- 2025-10-31 — observation by zihuadean
- 2025-01-01 — observation by zihuadean
- 2024-11-08 — observation by zihuadean
- 2024-11-05 — observation by zihuadean
- 2024-11-04 — observation by zihuadean
Interactive card with more photos, sounds and similar species Shore life guide iNaturalist Wikipedia
Cite as: “Long-flange Millipede (Orthomorpha coarctata) at La Saladita”, La Saladita Field Guide, lasaladita.com/species/orthomorpha-coarctata/, updated 2026-10-18. 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.