Megalagrion

Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Cladus: Metapterygota
Cladus: Odonatoptera
Cladus: Holodonata
Ordo: Odonata
Subordo: Zygoptera
Superfamilia: Coenagrionoidea

Familia: Coenagrionidae
Genus: Megalagrion
Species: M. adytum – M. amaurodytum – M. blackburni – M. calliphya – M. eudytum – M. hawaiiense – M. heterogamias – M. jugorum – M. kauaiense – M. koelense – M. leptodemas – M. mauka – M. molokaiense – M. nesiotes – M. nigrohamatum – M. oahuense – M. oceanicum – M. oresitrophum – M. orobates – M. pacificum – M. paludicola – M. vagabundum – M. williamsoni – M. xanthomelas
Name
Megalagrion McLachlan, 1883

Megalagrion calliphya. Location: Maui, Makawao Forest Reserve

Megalagrion is a genus of damselflies in the family Coenagrionidae It contains approximately 26 species, all of which are endemic to Hawaiʻi.

Larval Megalagrion live in widely diverse habitats, including the expected streams and pools. Megalagrion also exploit some surprising habitats such as plant leaf axils, waterfall faces, and even damp fern litter far from water sources. M. oahuense is the only species of damselfly whose naiad is terrestrial, living in damp fern litter until metamorphosis.

Many species of Megalagrion are in danger due to habitat loss and predation by non-native fish. To protect them, non-native fish should never be released in Hawaiian streams.

The genus contains the following species:[1]

Megalagrion adytum (Perkins, 1899) - Adytum Swamp Damselfly[2]
Megalagrion amaurodytum (Perkins, 1899)
Megalagrion blackburni McLachlan, 1883
Megalagrion calliphya (McLachlan, 1883)
Megalagrion deceptor (McLachlan, 1883)
Megalagrion dinesiotes (Kennedy, 1934)
Megalagrion eudytum (Perkins, 1899)
Megalagrion hawaiiense (McLachlan, 1883)
Megalagrion heterogamias (Perkins, 1899)
Megalagrion jugorum (Perkins, 1899) - Maui Upland Damselfly, (Maui, extinct)[3]
Megalagrion kauaiense (Perkins, 1899)
Megalagrion koelense (Blackburn, 1884) - Koele Mountain Damselfly[4]
Megalagrion leptodemas (Perkins, 1899) - Crimson Hawaiian Damselfly[5]
Megalagrion mauka Daigle, 1997
Megalagrion molokaiense (Perkins, 1899) - Molokai Damselfly[6]
Megalagrion nesiotes (Perkins, 1899) - Flying Earwig Hawaiian Damselfly[7]
Megalagrion nigrohamatum (Blackburn, 1884) - Nigrohamatum Damselfly[8]
Megalagrion oahuense (Blackburn, 1884) - Oahu Damselfly[9]
Megalagrion oceanicum McLachlan, 1883 - Oceanic Hawaiian Damselfly[10]
Megalagrion oresitrophum (Perkins, 1899)
Megalagrion orobates (Perkins, 1899)
Megalagrion pacificum (McLachlan, 1883) - Pacific Hawaiian Damselfly[11]
Megalagrion paludicola Maciolex & Howarth, 1979 - Kauai Bog Damselfly[12]
Megalagrion vagabundum (Perkins, 1899)
Megalagrion williamsoni (Perkins, 1910)
Megalagrion xanthomelas (Selys, 1876) - Orangeblack Hawaiian Damselfly[13]

References

Martin Schorr; Dennis Paulson. "World Odonata List". University of Puget Sound. Retrieved 12 October 2018.
Polhemus, D.A. (2006). "Megalagrion adytum". The IUCN Red List of Threatened Species. IUCN. 2006: e.T12949A3401589. doi:10.2305/IUCN.UK.2006.RLTS.T12949A3401589.en. Retrieved 24 December 2017.
Odonata Specialist Group (1996). "Megalagrion jugorum". The IUCN Red List of Threatened Species. IUCN. 1996: e.T12953A3402100. doi:10.2305/IUCN.UK.1996.RLTS.T12953A3402100.en. Retrieved 24 December 2017.
Clausnitzer, V. (2009). "Megalagrion koelense". The IUCN Red List of Threatened Species. IUCN. 2009: e.T159123A5318818. doi:10.2305/IUCN.UK.2009-2.RLTS.T159123A5318818.en. Retrieved 24 December 2017.
Polhemus, D.A. (2006). "Megalagrion leptodemas". The IUCN Red List of Threatened Species. IUCN. 2006: e.T12954A3402213. doi:10.2305/IUCN.UK.2006.RLTS.T12954A3402213.en. Retrieved 24 December 2017.
Polhemus, D.A. (2006). "Megalagrion molokaiense". The IUCN Red List of Threatened Species. IUCN. 2006: e.T59740A12010600. doi:10.2305/IUCN.UK.2006.RLTS.T59740A12010600.en. Retrieved 24 December 2017.
Polhemus, D.A. (2006). "Megalagrion nesiotes". The IUCN Red List of Threatened Species. IUCN. 2006: e.T59741A12010678. doi:10.2305/IUCN.UK.2006.RLTS.T59741A12010678.en. Retrieved 24 December 2017.
Odonata Specialist Group (1996). "Megalagrion nigrohamatum". The IUCN Red List of Threatened Species. IUCN. 1996: e.T12955A3402384. doi:10.2305/IUCN.UK.1996.RLTS.T12955A3402384.en. Retrieved 24 December 2017.
Odonata Specialist Group (1996). "Megalagrion oahuense". The IUCN Red List of Threatened Species. IUCN. 1996: e.T12961A3403110. doi:10.2305/IUCN.UK.1996.RLTS.T12961A3403110.en. Retrieved 24 December 2017.
Odonata Specialist Group (1996). "Megalagrion oceanicum". The IUCN Red List of Threatened Species. IUCN. 1996: e.T12958A3402487. doi:10.2305/IUCN.UK.1996.RLTS.T12958A3402487.en. Retrieved 24 December 2017.
Odonata Specialist Group (1996). "Megalagrion pacificum". The IUCN Red List of Threatened Species. IUCN. 1996: e.T12959A3402624. doi:10.2305/IUCN.UK.1996.RLTS.T12959A3402624.en. Retrieved 24 December 2017.
Clausnitzer, V. (2009). "Megalagrion paludicola". The IUCN Red List of Threatened Species. IUCN. 2009: e.T159125A5319272. doi:10.2305/IUCN.UK.2009-2.RLTS.T159125A5319272.en. Retrieved 24 December 2017.
Odonata Specialist Group (1996). "Megalagrion xanthomelas". The IUCN Red List of Threatened Species. IUCN. 1996: e.T12960A3402962. doi:10.2305/IUCN.UK.1996.RLTS.T12960A3402962.en. Retrieved 24 December 2017.