1. EPHEMEROPTERA

2. Hexapoda Insecta Pterygota Neoptera Holometabola Apterygotes
Entognatha
Archaeognatha
Hexapoda
Zygentoma = Thysanura
Ephemeroptera
Insecta
Odonata
Plecoptera
Embiodea
Pterygota
Zoraptera
Dermaptera
Grylloblattodea ?
Mantophasmatodea
Orthoptera
Phasmatodea
Blattaria
Isoptera
Mantodea
Neoptera
Psocoptera
Phthiraptera
Thysanoptera
Hemiptera
Coleoptera
Rhaphidioptera
Megaloptera
Neuroptera
Hymenoptera
Holometabola
Mecoptera
Siphonaptera
Diptera
Apterygotes
Strepsiptera
Trichoptera
Paleoptera
Lepidoptera
Hemimetabolous
Holometabolous

3. Hexapod Orders Ephemeroptera Ephemero - short-lived, ptera - wings
Number of Species
ca. 2000
Common names
mayflies, shadflies
Typical habitats
Nymphs - aquatic, Adult - aerial
Distinguishing characteristics
-three tails (cerci)
-non-foldable wings
Other features
-short lived
-don’t feed as adults

4. Ephemeroptera
Superficially look like Plecoptera (stoneflies) but…
Ephemeroptera
Plecoptera
-abodminal gills thoracic gills

5. -originally terrestrial - then invaded water
Ephemeroptera
-originally terrestrial - then invaded water
-first invade lotic streams
-then radiate to lentic streams

6. Ephemeroptera - Life History
subimago
nymph
Egg laying
imago (adult)
Mating swarm

7. Ephemeroptera - Mating
Male
Female in vegetation

8. Ephemeroptera - Ecological Classification of Nymphs
Lotic forms
Lentic forms
Free-ranging
Climbers
Clinging
Clinging
Silt
Burrowers