Acidic-water
Guides
Aeshna canadensis
Canada Darner
Aeshna canadensis, the Canada darner, is a large dragonfly species in the family Aeshnidae. First described by Edmund Murton Walker in 1908, it is common throughout southern Canada and the northern United States. Adults are active from June to October. The species has been documented undertaking north-south migratory movements within its range, representing the first conclusive evidence of migration in the genus Aeshna in North America.
Anopheles crucians
Anopheles crucians is a mosquito species inhabiting shaded aquatic environments with acidic water, particularly cypress swamps. It breeds in semipermanent and permanent pools, ponds, lakes, and swamps. The species is a documented host for parasitic water mites (Arrenurus spp.), with males showing significantly higher parasitism rates due to surface water contact during swarming behavior. It has been implicated as a potential malaria vector, with historical research documenting Plasmodium falciparum infection in 75% of examined individuals.
Enallagma recurvatum
Pine Barrens Bluet, Pale Barrens Bluet
Enallagma recurvatum is a small damselfly endemic to the United States. It inhabits freshwater lakes, particularly in pine barrens and similar sandy, acidic lake systems. The species is considered threatened due to habitat loss from development, water quality degradation, and shoreline alteration. Its restricted range and specialized habitat requirements make it vulnerable to environmental changes.
Sympetrum danae
Black Darter, Black Meadowhawk
Sympetrum danae is a small dragonfly with a northern Holarctic distribution, found in northern Europe, Asia, and North America. It is Britain's smallest resident dragonfly at 29–34 mm long. The species is strongly associated with acidic bog habitats and is active from mid-June to mid-November, with peak activity in late summer. Mature males are entirely black, making this the only Sympetrum species lacking red coloration in males.