Small mayflies
Scientific name: Baetidae
Small mayflies
Scientific name: Baetidae
Description
These are among the smallest of mayflies, adults rarely exceeding 1 cm in length excluding the two long slender tails and sometimes much smaller, and members of the family are often referred to as small mayflies or small minnow mayflies. Most species have long oval forewings with very few cross veins (see Comstock-Needham system) but the hindwings are usually very small or even absent. The males often have very large eyes, shaped like turrets above the head (this is known as "turbinate condition").