CLADOENDESIS OF EPHEMEROPTERA

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Baetodes/g2

(Panephemeroptera Euephemeroptera Euplectoptera Anteritorna pm.Tridentiseta  
Tetramerotarsata Liberevenata Turbanoculata
Anteropatellata Baetovectata Baetungulata Baetodes/g1 - Baetodes/g2)

Nomen hierarchicum: Baetodes/g2 [g:1924] (sine Indobaetis, Prebaetodes; incl. Indobaetodes)

In circumscription fits:

 


References.  


Autapomorphies of Baetodes/g2.

(1) Patella-tibial suture [equally developed on all legs see Anteropatellata (1)] goes by anterior (dorsal) side of tibia exactly along tibia and has a form of light line on dark background; distally from the middle of tibia this suture has its usual oblique direction (Kluge & Novikova 2014: Fig.6768). In Baetodes/g3 it undergoes further modification [see below, Baetodes/g3 ()].

Non-unique autapomorphies of Baetodes/g2.

() Larva is adapted to inhabit in rapid waters, with this are connected some unique apomorphies [see ()()], as well as non-unique ones: body Acentrella-like, i.e. with flattened ventral and convex dorsal side, thorax relatively large in comparison with abdomen (non-unique character see Index of characters [1a]); paracercus is vestigial, consists of several segments (non-unique character see Index of characters [1.3.64]); cerci are long, swimming setae are short or lost.

() Larval abdominal terga lack wide scales [see Turbanoculata (12)] (see Index of characters [1.3.4]).

(?) Tergalial ribs [initially situated on anterior and posterior margins see Tetramerotarsata (12)] are lost.

Characters of Baetodes/g2 of unclear phylogenetic status. 

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Plesiomorphies of Baetodes/g2.

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Size. Fore wing length 2.58 mm (see Tetramerotarsata).

Distribution. Neotropical, Nearctic and Oriental Regions.


The taxon Baetides/g2 is divided into:

1. Indobaetodes 

2. Baetodes/g3