
Megalagrion nigrohamatum
Blackline Hawaiian Damselfly
As recorded: Megalagrion nigrohamatum (Blackburn, 1884)
Animalia › Arthropoda › Insecta › Odonata › Coenagrionidae
- Collected by
- Polhemus, D.A.
- Date
- September 8, 1994
- Locality
- upper Maunawainui Stream at headwall
- Identified by
- Polhemus, D.A.
- Record type
- Preserved specimen
Collected the same day
On September 8, 1994, Polhemus, D.A. also collected 2 other specimens.
Megalagrion nigrohamatum observed alive
This specimen was collected in 1994. Since 2000, iNaturalist observers have recorded 13 research-grade sightings in the wild, most recently on 2025-10-20.

2025-10-20
Hawaii, US
(c) jordan loftin, some rights reserved (CC BY-NC)

2025-09-07
Hawaii, US
no rights reserved

2025-09-07
Hawaii, US
no rights reserved

2025-09-07
Hawaii, US
no rights reserved

2024-12-18
Hawaii, US
no rights reserved

2024-11-09
Hawaii, US
no rights reserved
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Megalagrion nigrohamatum. BPBM 24082. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 37521259. Accessed via explore.bishopmuseum.org/specimens/ent/24082.
Record sources
- GBIF occurrence 37521259 ↗
- Data license: CC0
- Last harvested October 26, 2026
Data-quality notes from GBIF
- Coordinates recorded as 0, 0
Spot an error? Let the Entomology department know — corrections flow back to GBIF.
