Ephemeroptera

Mayflies
March 27, Alder Brook feeder of North Branch
March 27, Alder Brook feeder of North Branch
March 30, New Haven Nash Farm. Contractile colonial ciliate of the Vorticella family, probably Carchesium, growing on mayfly nymph
March 30, New Haven Nash Farm. Mayfly with attached micro organisms
March 30, New Haven Nash Farm. Closeup of Carchesium on mayfly
April 7, North Branch feeder by Lucky 7. Flathead mayfly of the Haptageniidae family
April 10, Middlebury River Seeley District, contractile stalked ciliate Carchesium attached to mayfly
April 10, Middlebury River Seeley District, Mayfly with attached epibionts
April 15, Lewis Creek Parsonage Rd. Flathead mayfly
May 15, New Haven River at confluence with Muddy Branch, Mayfly with attached epibionts
April 21, Beaver Brook feeder of New Haven below confluence of Baldwin Creek. Flathead mayfly
April 21, New Haven Nash Farm
May 25, Middle Branch Middlebury River, Ripton
May 31, Baldwin Creek upstream of Rt 116. Pronggilled mayfly of the family Leptophlebiidae. Darkfield image
June 5, Middlebury River Gorge. Pronggilled mayfly
June 28, North Branch Lucky 7. Flathead mayfly
Sept 15, Baldwin Creek at Beaver Brook confluence