CLADOENDESIS OF EPHEMEROPTERA |
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[1] Larva |
[2] Subimago & imago |
[3] Egg |
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[1.1] Head | [1.2] Thorax | [1.3] Abdomen | [2.1] Head | [2.2] Thorax | [2.3] Abdomen |
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INDEX OF CHARACTERS
3.
EGGS
[3.1-6]
[3.1] Viviparity
— present: part of Turbanoculata (VAR) {Callibaetis/fg2 (3), Cloeon/fg3 (3), Oculogaster (1)}
[3.2] Shape of egg:
— biconvex lens: part of Ameletus/fg2 (), Prionoides (2), Palingenia/f3=g2 (7), Araucophlebia (3)
— concave-convex: Campsurus/fg2 (3)
— with tail: Ephemerythus (1)
[3.3] Chorion sculpture
— absent:
— present: Acentrella/fg1 (12)
— longitudinal ridges: Brachycercus/f1=g3 (6)
— polygonal: Eurylophella/fg2 (2)
— broken ridges forming crowns around papillae: Choroterpes/g1 ()
— longitudinal sinuous ridges and alternating cross-ridges: Thraulus/g? ()
[3.4] Anchor or its vestige (except for polar structures)
— rough spot formed by apices of threads: Siphlonurus/fg1 (2)
— thread, coiled under knob: Branchitergaliae (not all) (4)
— mushroom-like: Discoglossata (11)
— skein of threads, surrounds knob: Potamanthus/fg1 (5), Ephemerella/fg1 (not all) (14)
— flat spiral: Afronurus/g1 (not all) (2)
— lamellate: Palingenia/f3=g2 (not all) (7)
[3.5] Number of polar caps or anchors (see [3.6])
— 2: Stenacron (1), [Classifications of Furcatergaliae I] (4), Potamanthus/fg1 (5), part of Euthyplocia/fg1 (VAR), Eopolymitarcys (2), part of Campsurus/fg1 (VAR) {part of Asthenopus/fg1 (P)}, Caenotergaliae (not all) (8), part of Ephemerella/fg1 (14) {Tricorythopsis (4)}
— 1: Ametropus (10), [Classifications of Furcatergaliae I ] (2), part of Euthyplocia/fg1 (VAR), Polymitarcys/f3=Ephoron/g4 (2), part of Campsurus/fg1 (WAR) {part of Campsurus/fg2 (3)}, Caenotergaliae (not all) (8) {Brachycercus/f1=g3 (6)}, Ephemerella/fg1 (not all) (14) {Ephemerythus/fg1 (1)}
— absent: part of Campsurus/fg2 (3), Caenotergaliae (not all) (8), Ephemerella/fg1 (not all) (14) {Eurylophella/fg2 (2)}
[3.6] Structure of polar cap or anchor (see [3.5])
— long threads coiled on pole: Stenacron (1), part of Euthyplocia/fg1 (VAR), part of Campsurus/fg1 (WAR) {part of Asthenopus/fg1 (P), part of Campsurus/fg2 (3)}, part of Caenotergaliae (8)
— cap with integral external surface: [Classifications of Furcatergaliae I] (4), Potamanthus/fg1 (5), part of Euthyplocia/fg1 (VAR), part of Campsurus/fg1 (WAR) {part of Campsurus/fg2 (3)}, Caenotergaliae (not all) (8), Ephemerella/fg1 (not all) (14)
— bunch of folded threads with knobs: Ametropus (10)
— cap bearing threads with knobs: Polymitarcys/f2=Ephoron/g3 (5) {Eopolymitarcys (2), Polymitarcys/f3=Ephoron/g4 (2)}