CLADOENDESIS OF EPHEMEROPTERA
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Leptophlebia/fg1 Atalophleboadentata Atalophlebopectinata Atalophleboculata Atalophlebomaxillata Atalophlebolinguata
... Hagenulus/fg1 - Hagenulus/fg2)
Nomen hierarchicum: Hagenulus/fg2 [f:1994; g:1882] (sine Hermanella, Thraulodes, Ulmeritus, Miroculis; incl. )
In circumscription fits:
— gen. Hagenulus: Kluge 1994b: 255
— Hagenulus/fg2: Kluge 2008: 387
References. Kluge 1994: .
Autapomorphies of Hagenulus/fg2.
() Apical-ventral row of pectinate setae [see Leptophlebia/fg1 (1)] is interrupted in middle forming two separate portions – median portion (7–10 setae) and lateral portion (7–15 setae); these portions do not form common line: most median bristles of the lateral portion are smaller and arise more distally than most lateral bristles of the median portion (Figs#). In other Leptophlebia/fg1 this row is either integral and straight, or has curvation in middle (see Index of characters [1.1.31]).
() Penis with a pair of small pointed processes arising from ventral side near middle and usually directed medially; these processes are developed either both in subimago and imago, or in subimago only (in (in Hagenulus/fg3 morrisonae [H.] and Turquinophlebia/g1 grandis [H.]). In Careospina and Traverina these processes are completely absent, probably secondarily reduced.
Characters of Hagenulus/fg2 of unclear phylogenetic status.
????() On fore wing fork of MP is symmetrical. Non-unique apomorphy (see Index of characters [2.2.46]).
Plesiomorphies of Hagenulus/fg2.
Size. Fore wing length ?–? mm.
Age and distribution. Cenozoic – recent; Neotropical Region, dominate in Caribean area.
|The taxon Hagenulus/fg2 is divided into:|