CLADOENDESIS OF EPHEMEROPTERA
Tetramerotarsata Liberevenata Turbanoculata
Anteropatellata Baetovectata Baetungulata Baetofemorata
Acentrella/fg1 - Jubabaetis/g1)
Nomen hierarchicum: Jubabaetis/g1 [g:1980] (incl. Liebebiella, Platybaetis)
In circumscription fits:
— Jubabaetis/g3 = gen. Jubabaetis = subgen. Jubabaetis: Kluge & Novikova 2011: 45
References. Kluge & Novikova 2011: * * *
Autapomorphies of Jubabaetis/g1.
(1) Flat projections, forming a row on mola of left mandible, are very small and petiolate; they begin at a distance from the distal molar projection, so that several small pointed denticles locate between them and the distal molar projection (Kluge & Novikova 2011: Fig.136, 154, 168, 193, 202). In other Acentrella/fg1 flat denticles, forming a row on mola of left mandible, are longer than 1/2 of the distal molar projection and begin close to it (ibid., Fig.102).
Characters of Jubabaetis/g1 of unclear phylogenetic status.
(2) Fore tarsus of female imago and subimago has 2 apical spines: 2nd and 3rd tarsomeres are spine-bearing; 4th tarsomere (penultimate, with stretched apical-ventral angle) lacks apical-ventral spine. Initially, tarsus of middle and hind leg of both sexes retains 3 apical spines, i.e. 4th tarsomere is spine-bearing, as in the plesiomorphon Acentrella/fg2 [see Acentrella/fg1 (10)]; this occurs in Tanzaniops, Jubabaetis/g3 and plesiomorphon Liebebiella. In Platybaetis tarsus of middle and hind leg of both sexes has only 2 apical spines (Kluge & Novikova 2011: Fig.185), as on fore leg of female [see below, Platybaetis (4)] (see Index of characters [220.127.116.11], [2.2.83]).
(3) Hind wings are always absent [see Acentrella/fg1 (7)].
(4) Larval frons, being projected above clypeus [see Acentrella/fg1 (2)], can bear peculiar setae, which are very dense, short, fine, colorless and curved dorsally-backward. In Jubabaetis/g3 these setae are enlarged [see below, Jubabaetis/g3 (2)]. In Tanzaniops and some species of the plesiomorphon Liebebiella (e.g., verum [Procloeon], bispinosa [Acentrella] and cylindroculata [Acentrella]) these setae are smaller and poorly visible (Kluge & Novikova 2011: Fig.124). In some other species of Liebebiella (e.g., proximum [Pseudocloeon] and undescribed species from Philippines) these setae are absent. In Platybaetis frons is not projected above clypeus and these setae are absent.
Size. Fore wing length 3–9 mm(see Tetramerotarsata).
Distribution. Oriental and Afrotropical Regions.
|The taxon Jubabaetis/g1 is divided into:|
2.1 plesiomorphon Liebebiella