Mosaic-distribution
Guides
Enallagma ebrium
Marsh Bluet
Enallagma ebrium, commonly known as the marsh bluet, is a North American damselfly in the family Coenagrionidae. It is closely related to E. hageni, with which it forms a mosaic spatial distribution pattern across eastern North America. The species is known to host the water mite Limnochares americana, which can affect its survivorship and maturation. Research indicates that adult damselflies exhibit grooming behavior in response to mite parasitism, with responses varying by age, sex, and mite intensity.
Enallagma hageni
Hagen's Bluet
Enallagma hageni is a narrow-winged damselfly in the family Coenagrionidae, native to North America. It is one of several Enallagma species that radiated during the Pleistocene and is closely related to E. ebrium, with which it forms a mosaic spatial distribution pattern. The species is listed as Least Concern by the IUCN with a stable population.