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Baetis tricaudatus, subimago male (subclass Pterygota)


EB1911 - Volume 01 - Page 001 - 1.svg This entry lacks etymological information. If you are familiar with the origin of this term, please add it to the page per etymology instructions. You can also discuss it at the Etymology scriptorium.

Proper noun[edit]


  1. A taxonomic clade within the class Insecta – all living insects, excluding the primitive Monocondylia.
  2. A taxonomic subclass within the class Insecta – the single order Zygentoma.[1]

Usage notes[edit]

The clade basal Dicondylia is monotypic with the order Zygentoma (= Thysanura specifically excluding the families Machilidae and Meinertellidae).



  1. ^ Ruggiero MA, Gordon DP, Orrell TM, Bailly N, Bourgoin T, Brusca RC, et al. (2015) A Higher Level Classification of All Living Organisms. PLoS ONE 10(4): e0119248. doi: 10.1371/journal.pone.0119248. pmid:25923521