Acerpenna macdunnoughi
(Ide, 1937)
small minnow mayfly
Acerpenna macdunnoughi is a of small minnow mayfly in the Baetidae. Originally described as Baetis macdunnoughi by Ide in 1937, it was later transferred to the Acerpenna. The species is found in North America.
Pronunciation
How to pronounce Acerpenna macdunnoughi: /ˌæ.sɜrˈpɛn.nə ˌmæk.dʌˈnoʊi/
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
As a member of Baetidae, this possesses the characteristic two and reduced caudal filament typical of the . Specific diagnostic features distinguishing it from congeneric species such as Acerpenna pygmaea require examination of genitalia and wing venation patterns.
Habitat
Aquatic larval stages inhabit freshwater systems. Specific microhabitat preferences for this have not been documented.
Distribution
North America, within the Nearctic region.
Life Cycle
As with all Ephemeroptera, development includes aquatic nymphal stages followed by winged subimago and stages. Specific details of voltinism or timing for this are not documented.
Ecological Role
Nymphs function as primary consumers in aquatic . serve as prey for fish, birds, and other during their brief terrestrial phase.
Similar Taxa
- Acerpenna pygmaeaOverlapping distribution and similar size; requires genitalic examination for reliable separation.
More Details
Original Description
First described by Ide in 1937 under the name Baetis macdunnoughi.