Small Minnow Mayflies
Baetidae
Classification
- Phylum: Arthropoda
- Subphylum: Hexapoda
- Class: Insecta
- Order: Ephemeroptera
- Suborder: Pisciforma
- Family: Baetidae
Pronunciation
How to pronounce Baetidae: /ˈbaɪ.tɪˌdiː/
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Images
Summary
Baetidae, commonly known as small minnow mayflies, are one of the smallest families of mayflies with around 1000 species worldwide, characterized by their small size and distinctive turbinate eyes in males. They occupy a range of freshwater environments and play a crucial role in aquatic ecosystems as both consumers of algae and prey for higher trophic levels.
Physical Characteristics
Adults usually less than 10 mm in length, with long slender tails; males have large, turban-shaped eyes.
Identification Tips
Look for the distinctive large eyes of males and the small hindwings, which are either very small or absent.
Habitat
Wide range of freshwater habitats, including lakes, streams, ditches, and water butts.
Distribution
Dispersed worldwide, with significant presence throughout North America.
Diet
Nymphs primarily feed on algae.
Life Cycle
Includes aquatic nymph stages followed by a brief adult life, with emergence into the air.
Reproduction
Mating occurs above water; females lay eggs on water surface or in the substrate.
Ecosystem Role
Important as indicators of water quality and as a food source for fish and other aquatic predators.
Evolution
The oldest members of Baetidae date back to the Late Cretaceous; diverse adaptations have evolved over time.
Similar Taxa
Tags
- Baetidae
- mayflies
- aquatic insects
- freshwater ecology