- References
{{Italic title}}{{Taxobox
| name = Megalagrion nigrohamatum
| image = Male Blackline Hawaiian damselfly by Dan Polhemus (7981009105).jpg
| status = LR/nt
| status_system = IUCN2.3
| regnum = Animalia
| phylum = Arthropoda
| classis = Insecta
| ordo = Odonata
| familia = Coenagrionidae
| genus = Megalagrion
| species = M. nigrohamatum
| binomial = Megalagrion nigrohamatum
| binomial_authority = (Blackburn, 1884)
| synonyms =
}}Megalagrion nigrohamatum is a species of damselfly in the family Coenagrionidae that is endemic to Hawaii. References- {{Cite journal | author = Odonata Specialist Group | title = Megalagrion nigrohamatum | journal = The IUCN Red List of Threatened Species | volume = 1996 | page = e.T12955A3402384 | publisher = IUCN | date = 1996 | url = http://www.iucnredlist.org/details/12955/0 | doi = 10.2305/IUCN.UK.1996.RLTS.T12955A3402384.en | access-date = 21 December 2017}}
{{Taxonbar|from=Q1307098}}{{damselfly-stub}} 7 : Coenagrionidae|Insects of Hawaii|Endemic fauna of Hawaii|Odonata of Oceania|Critically endangered fauna of Hawaii|Insects described in 1884|Taxonomy articles created by Polbot |