Ephemeroptera


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Related to Ephemeroptera: Diptera, May fly, Trichoptera, shadfly
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Fig. 150 Ephemeroptera . Ephemera sp.

Ephemeroptera

an order of the class Insecta, containing the mayflies. They are EXOPTERGYOTES, and spend the great majority of their life in the nymphal stage and only a few minutes or hours in the nonfeeding, adult stage.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
The additional food composed of mud and Ephemeroptera were mainly consumed in wet season and dry season respectively.
In Arthropoda, Crustacea was represented by the order Decapoda and Insecta was represented by eight orders (Diptera, Trichoptera, Plecoptera, Ephemeroptera, Coleoptera, Odonata, Hemiptera and Megaloptera).
The macroinvertebrate community is closely linked to habitat conditions for example, detritivores are found in organically rich sediments under macrophytes while Ephemeroptera are characteristic of shallow wave washed smooth habitats (James et al., 1998).
Whereas the community structures of most of the pans consist mainly of crustaceans, the invertebrate fauna at pan 3 is made up of aquatic insects (including many Hemiptera, Ephemeroptera and Odonata).
Los ordenes de macroinvertebrados acuaticos registrados en el riachuelo fueron Trichoptera, dominado por Leptoceridae, Hydropsychidae y Phylopotamidae, Plecoptera (Perlidae), Coleoptera (Elmidae), Ephemeroptera (Baetidae), Diptera (Tipulidae), Dyctioptera (Blaberidae) y Decapoda (Pseudothelphusidae).
Los ordenes Coleoptera (35%) y Diptera (27%) presentaron el mayor numero de generos, seguido por Trichoptera y Ephemeroptera (12%) (Figura 1 y Tabla 1).
Ephemeroptera recorded their complete absence at St III and IV while comparatively more density of ephemeropterans at St I (4.5 ind.[m.sup.-2] [+ or -] 10.71) as compared to St II (2.25 ind.[m.sup.-2] [+ or -] 7.46) was observed.
1) Ephemeroptera, Plecoptera, and Trichoptera taxa (EPT)--These taxa are typically less tolerant of perturbation than many other taxa.
The invertebrates were evaluated by the modified Family Biotic Index (FBI) and by percent Ephemeroptera, Plecoptera, Trichoptera (EPT).
Larvae of Ephemeroptera (mostly Ephemera vulgata L.) formed a major part of the diet of the smaller perch (TL < 20 cm) when evaluated as a percentage of the stomach content by volume (Fig.