Mayfly

• About 700 species in North America
• Develop in the stream over period of two weeks to two years
• Live on exposed rock surfaces in fast current or buried in soft stream beds
• Large numbers of flying adults may emerge from stream at the same time

• Platelike or feathery gills along the side of the abdomen
• Two or three long hairlike tails
• Six segmented legs on middle section of body
• Each leg has one claw on the end
• The body can be up to one inch long
• Body is usually flat

• abdomen
• platelike
• segmented
• species