CLADOENDESIS OF EPHEMEROPTERA

ABC

z 

[1] Larva

[2] Subimago & imago

[3] Egg

[1.1] Head [1.2] Thorax [1.3] Abdomen [2.1] Head [2.2] Thorax [2.3] Abdomen

INDEX OF CHARACTERS

1.2. LARVA:
THORAX AND ITS APPENDAGES
Thorax [1.2.1], prothorax [1.2.23], mesothorax and fore protoptera [1.2.48], metathorax and hind protoptera [1.2.910], legs [1.2.1153]

    

[1.2] Thorax

 forms notal shield see [1.2.1]

[1.2.1] Notal shield

 present: Posteritorna (3)

 oval: Prosopistoma/f1=g2 (2)

 with pair of lateral projections: Baetisca/f3=g2 (4)

 compressed dorsoventrally: Fascioculus (2)

 strongly convex: Baetisca/f4=g3 (2)

Prothorax of larva [1.2.24]

[1.2.2] Pronotum

 fused with mesonotum: Posteritorna (3), Coloburiscus/fg1 (2)

 fused with propleura: Campsurus/fg1 (3)

 with projected anterior angles: Thraulobaetodes (5), Cincticostella/g1 (2)

 with antero-lateral denticles: part of Fimbriatotergaliae (1)

 with anterior setose projections: Behningia/fg1 (1)

 with lateral projections: Ametropus (1),

 with postero-lateral projections: Pseudiron (1), Ecdyonurus/fg2 (1), Behningia/fg2 (1)

 with dorsal paired projections: Thraulobaetodes (5)

 with pair of cavities: Pseudiron (1)

 with collar: Fimbriatotergaliae (1)

 with V-shape impression: Ephemerella/fg1 (4)

 with submedian tubercles: Neoephemera/fg2 (1)

 with sexual dimorphism: part of Tricorygnatha (13)

laterally with setae: Jappa/g1 () 

with pair of transverse rows of stout setae: Hermanellonota (2)

[1.2.3] Propleuron

 transformed to apodeme: Furcatergaliae (1)

 fused with pronotum: part of Furcatergaliae (1) {Campsurus/fg1 (3)}

 with anterior projection: Platybaetis (2)

[1.2.4] Prosternum

 with unpaired projection: Acanthametropus/fg1 (4), Ametropus (3)

 with gill: part of Eusetisura (3)

 narrowed, with furcate apodeme: Cryptoprosternata (1)

 expanded laterally: Platybaetis (2)

 with pair of flaps: Platybaetis (2)

Mesothorax and fore protoptera of larva [1.2.58]

[1.2.5] Mesonotum

 together with pronotum forms notal shield see [1.2.1]

 has paranota anteriad of protoptera: Ametropus (1)

 with collar: [Classifications of Furcatergaliae I] (3), Potamanthus/fg1 (2), Euthyplocia/fg1 (7), Caenotergaliae (5), Ephemerella/fg1 (11)

 with lateral projections: Cincticostella/g1 (2)

 with sharp lateral projections: Cincticostella/g1 (not all) (2) {Ephacerella (P)}

 with flat lateral projections: part of Cincticostella/g1 (2) {Cincticostella/g3 (1)}

 with dorsal tubercles: Thraulobaetodes (5), Neoephemera/fg2 (1)

[1.2.6] Fore protoptera

 spread: Ametropus (1), Pseudiron (1)

 with divergent costal margins: Ametropus (1)

 divergent: Discoglossata (3)

 convergent: Coloburiscus/fg1 (2), Ephemerella/fg1 (not all) (5)

 fused with notum up to end of scutellum: Turbanoculata (8), Eusetisura (5), Pentamerotarsata (2), part of Caenotergaliae (2)

 fused by mesal plate behind notum: Posteritorna (3), part of Turbanoculata (8) {Pseudopannota/g2 (9)}, part of Eusetisura (5) {Coloburiscus/fg1 (2), Discoglossata (3)}, Ephemerella/fg1 (5)

 fused by apices: Tricorygnatha (2)

 enclosed into notal shield: Posteritorna (3)

[1.2.7] Mesopleuron

 with projection and setae: Behningia/fg1 (1)

[1.2.8] Mesosternum

 with pair of longitudinal ridges: Posteritorna (3)

 with unpaired projection: Acanthametropus/fg1 (4)

 with bifurcate projection: Isonychia/fg1 (4)

 with gill: part of Eusetisura (3)

Metathorax and hind protoptera of larva [1.2.910]

[1.2.9] Metanotm

 with dorsal projection: Thraulobaetodes (5)

[1.2.9a] Hind protoptera

 differ from hind wings: Tricoryptera (not all) (2) {Ephemerythus (4), Leptohyphes/fg1 (not all) (2)}

 absent see [2.2.59]

[1.2.10] Metasternum

 with pair of projections: Isonychia/fg1 (4)

 with gill: part of Eusetisura (3)

LEGS OF LARVA
Leg [1.2.11], coxa [1.2.12], trochanter [1.1.13], femur [1.2.1416], tibia [1.2.1718], tarsus [1.2.19], claw [1.2.2024]; 
fore leg
[1.2.2537], middle leg [1.2.3843], hind leg [1.2.3349], common features of certain leg pairs [1.2.5053]

[1.2.11] Larval legs of all 3 pairs

 able to stretch posteriorly: Siphlonurus/fg1 (P), Dipteromimus (P), Ameletus/fg1 (P), Metretopus/fg1 (P), Acanthametropus/fg1 (P), Siphlaenigma (P), Turbanoculata (not all) (VAR), Nesameletus/f1=Metamonius/g1 (P), Rallidens (P), Isonychia/fg1 (P)

 unable to stretch posteriorly: part of Turbanoculata (VAR), Heptagennota (1), Furcatergaliae (6)

 used for swimming: part of Heptagennota (1)

 folded and pressed by sides to body when swimming: part of Heptagennota (1) {Rhithrogena/fg2 (3)}

[1.2.12] Coxa (see also [1.2.26, 1.2.39, 1.2.45])

 with gill see [1d]

[1.2.13] Trochanter see fore leg [1.2.27]

Femora of larva [1.2.1416]
(about femora of certain pairs see also [1.2.2829], [1.2.40], [1.2.46])

[1.2.14] Femur

 inserted into concavity: Prosopistoma/f1=g2 (2)

flattened: Heptagennota (1), Dicercomyzon (6)

 narrow, arched: Brachycercus/f1=g3 (5)

 with curved apical projection: Turbanoculata (11)

[1.2.15] Femur setation (see also [1.2.16])

tuft of microchaetae (villopore): Baetofemorata (1), part of Labiobaetis/f2=g1 (6)

stout setae forming one transverse row: Scutoptilium ()

 spiny setae in 2 transverse rows: Coloburiscus/fg1 (4)

 2 stout apical setae: Indocloeon (14), 

 on outer margin see [1.2.16]

[1.2.16] Outer margin of femur (see also [1.2.15])

 without regular row of setae:  part of Turbanoculata (VAR) {Indocloeon (13), ... }, Heptagenia/f6=g5 (P)

 with long hairs and long stout irregular setae: Heptagenia/f7=g6 (2), Raptoheptagenia (4)

 without long setae: Kageronia (4)

 with regular row of setae: part of Turbanoculata (VAR) {... }, Ecdyonurus/fg1 (4), Cinygma (7), Rhithrogena/fg1 (5), Madecocercus (3), Ephemerella/fg2 (not all) (P), Pantricorythi (not all) (1)

Tibiae of larva [1.2.1718]
(about tibiae of certain pairs see also [1.2.3035], [1.2.41], [1.2.47])

[1.2.17] Tibia

 shortened: Acanthametropus/fg1 (3), Ametropus (1)

with regular row of setae: Micksiops (), Afroptiloides (), Deceptiviosa (), Echinobaetis (), Acentrella/fg1 (3), Baetodes/g2 () 

with dense dorsal setae: Baetiella/g1 (), Epeorus/fg2 (3) 

[1.2.18] Patella-tibial suture (among all Ephemeroptera)

 absent on fore leg, present on middle and hind leg: Siphlonurus/fg1 (P), Dipteromimus (P), Ameletus/fg1 (P), Metretopus/fg1 (P), Acanthametropus/fg1 (P), Ametropus (P), Siphlaenigma (P), pm.Protopatellata (not all) (P) {Anafroptilum, Indocloeon (P), Rhithrocloeon/fg1 (P), Dabulamanzia (P),  ...}, Nesameletus/f1=Metamonius/g1 (P), Vetulata (P), Ameletopsis/fg1 (P), Rallidens (P), Coloburiscus/fg1 (P), Isonychia/fg1 (P), Arthroplea (P), Heptagenia/f5=g4 (P), Cinygma (P), Paegniodes (P), Cinygmula (P), part of Epeorus/fg1 (8) {Belovius/g2 (2)}, Potamanthus/fg1 (P), Ichthybotus (P), Ephemera/fg9 (P), Dolania (P), Palingenia/f2=g1 (P), Polymitarcys/f2=Ephoron/g3 (P), Leucorhoenanthus (P), Potamanthellus (P), Ephemerella/fg1 (not all) (VAR), Leptophlebia/fg1 (not all) (VAR) {Leptophlebia/fg2 (P), Calliarcys (P), Terpides/g1 (15), Castanophlebia (P), ??Adenophlebia (P), Aprionyx (P), Kimminsula (non imago!) (), part of Petersula () Notophlebia (??imago??) (), Sulawesia (P), Jappa/g1 (not all) (), Atalomicria (P), ??Atalophlebia/fg* (P), Nyungara (P), Celiphlebia (P), Hapsiphlebia (), Massartella (), Massartellopsis (), Meridialaris (), Nousia (), Penaphlebia ()}

 present on all legs: Anteropatellata (not all) (1), Rhithrogena/fg3 (2), part of Petersula ()

 absent on all legs: Posteritorna (11), part of Protopatellata (P) {part of Centroptiloides/g2 ()}, Discoglossata (8), Pseudiron (2), Epeorus/fg1 (not all) (8), part of Euthyplocia/fg1 (VAR), Protobehningia (2), Campsurus/fg1 (7), Ochernova (1), part of Caenoptera (17), part of Ephemerella/fg1 (VAR), part of Leptophlebia/fg1 (VAR) {Hagenulus/fg1 (1), Nathanella (), Choroterpes/fg1 (non imago!) (2), Indialis/g1 () (non imago!) Kirrara (), Maheathraulus (), }

 absent on fore and middle legs, present on hind leg: Caenoptera (not all) (17), part of Leptophlebia/fg1 (VAR) {Habrophlebia/fg1 (non imago!) (3), Isca/fg1 (non imago!) (18), Megaglena (non imago!) (), ??Atalophlebia/fg* (), ?part in Jappa/g1 ()}

 absent on fore and hind legs, present on middle leg: part of Euthyplocia/fg1 (VAR), Behningia/fg3 (2)

vestigial on fore legs: Centroptella (1) 

? with sharp curvation: Cloeon/fg1 ()

longitudinal: Thraulobaetodes (4), Baetodes/g2 () 

S-like curved: Centroptella (1)

with conspicuous row of trichobothria: Cloeodes/g1 (1) {Cloeodes/g1 (P), Centroptella (1)}

not reaching inner side of tibia: Thraulobaetodes (), Centroptiloides/g2 (not all) ()

Tarsus of larva [1.2.19]
(about tarsi of certain pairs see also [1.2.36], [1.2.42], [1.2.48])

[1.2.19] Tarsus

 segmented: Permoplectoptera (P), Ameletopsis/fg1 (6)

 arched: Camelobaetidius/g1 (1), Pseudiron (1)

with ventral subapical seta: Jubabaetis/g2 (1), part of Papuanatula ()

Claw of larva [1.2.2024]
(about claws of certain pairs see also [1.2.37], [1.2.43], [1.2.49])

[1.2.20] Claw

 absent: Behningia/fg2 (1)

 elongate: Acanthametropus/fg1 (6), Ametropus (1), Pseudiron (1), Brachycercus/f1=g3 (5)

 swollen in male: Palingenia/f3=g2 (4)

brush-like: Camelobaetidius/g1 (1)

[1.2.21] Denticles on inner side of claw (not subapical denticles on anterior side see [1.2.22])

 absent or very small and irregular: Posteritorna (P), Siphlonurus/fg1 (P), Dipteromimus (P), Ameletus/fg2 (P), Metretopus/fg1 (1), Acanthametropus/fg1 (P), Ametropus (P), part of Tetramerotarsata (11) {part of Cloeon/fg1 (P), part of Cloeodes/g1 (VAR), part of Baetungulata (1)}, Siphluriscus (2), Vetulata (P), Ameletopsis/fg1 (P), Rallidens (P), part of Homoeoneuria/fg1 (2), Pseudiron (1), Heptagenia/f7=g6 (3), Fimbriatotergaliae (not all) (P) {Brachycercus/f1=g3 (5)}, part of Ephemerella/fg1 (18) {Timpanoga/fg3 (1)}, part of Leptophlebia/fg1 (8) {...Aprionyx (), Atalomicria (), part of Jappa/g1 {Neboissophlebia ()}}

 2 denticles: Tricorygnatha (3)

 in 1 row: Metreletus (2), part of Tetramerotarsata (11) {part of Rhithrocloeon/fg2 (4) {Rhithrocloeon/fg3 (2)}, Dabulamanzia/g1 (), Afrobaetodes (), Baetungulata (not all) (1) {Camelobaetidius/g1 (1)}}, Eusetisura (not all) (6), Pentamerotarsata (not all) (4) {Kageronia (5)}, Caenis/f4=g2 (not all) (3), Ephemerella/fg1 (not all) (18) {Tricorygnatha (3)}, Leptophlebia/fg1 (not all) (9)

 in 2 rows: Tetramerotarsata (not all) (11) {Centroptiloides/g2 (), Indocloeon (16), Thraulobaetodes (7) Rhithrocloeon/fg2 (not all) (4) {Bugilliesia (4)}, Crassabwa/g1 (), Anafroptilum (), Cloeon/fg1 (not all) (P), Callibaetis/fg1 (P) {Callibaetis/fg2 (2)}, Cloeodes/g1 (not all) (VAR), part of Baetungulata (1) {Heterocloeon (1), Andesiops/g1 ()}}, Nesameletus/f2=Metamonius/g2 (4), part of Homoeoneuria/fg1 (2) {Oligoneurisca (1)}, part of Ephemerella/fg1 (18) {part of Melanemerella/fg1 (VAR)}, part of Leptophlebia/fg1 (8) {Dactylophlebia ()}

in 1 row, no one larger than others: Traverella/g1 () 

in 1 row, with apical denticle larger than others: Guajirolus/g1 (), Hermanellonota (not all) (3), Traverina (), Miroculis/g1 (),

in 1 row, with middle denticle larger than others: Castanophlebia (???)

[1.2.22] Subapical denticles on anterior (dorsal) side of claw

 present: Pentamerotarsata (not all) (4), part of Ephemerella/fg1 (5), part of Leptophlebia/fg1 (8)

[1.2.23] Proximal projection

 flexible: Siphluriscus (2)

 present: Chiloporter (2)

 absent: Ameletopsis/fg2 (P), Mirawara (P), Chaquihua (P)

[1.2.24] Subapical setae of claw

2 setae (one on each side): Centroptiloides/g2 (), part of Baetofemorata ()

only on posterior side: Baetodes/g1 (), Caribaetis (), Moribaetis (?), Mayobaetis (),  Spiritiops (?), part of Papuanatula ()

Fore leg of larva
Fore leg [1.2.25], coxa [1.2.26], trochanter [1.2.27], femur [1.2.2829], tibia [1.2.3035], tarsus [1.2.36], claw [1.2.37]

[1.2.25] Fore leg (unlike middle and/or hind)

 diminished: Ametropus (3), Behningia/fg2 (1), Brachycercus/f1=g3 (5)

 palp-like: Ametropus (3), Behningia/fg2 (1)

 filtering: Eusetisura (1), Clypeocaenis/fg1 (1)

 grasping: Drunella/g1 (1), Vietnamella (3), Mesogenesia/g1 (1)

 burrowing: Exeuthyplocia/fg1 (3), Fossoriae (not all) (1) {Ichthybotus (2), Ephemera/fg10 (3), Hexagenia/fg1 (4), Protobehningia (1), Cryptoprosternata (2) {Palingenia/f2=g1 (4), (5), (9), Polymitarcys/f2= Ephoron/g3 (2), Campsurus/fg1 (6)}, "Mesopalingea", "Torephemera", "Siphangarus"}

Coxa of larval fore leg [1.2.26]

[1.2.26] Coxa of fore leg (see also [1.2.12])

 with condylus close to median line of body: Cryptoprosternata (1)

 elongate: Mesogenesia/g1 (1)

 with projection: Ametropus (3)

 with gill see [1d]

Trochanter of larval fore leg [1.2.27]

[1.2.27] Trochanter of fore leg

 wedged into anterior side of femur: Cryptoprosternata (2, 3B)

Femur of larval fore leg [1.2.2829]

[1.2.28] Femur of fore leg (see also [1.2.1416])

 widened (as middle leg): Acanthametropus/fg1 (2)

on inner side proximally with projection: Camelobaetidius/g2 (1)

 with concave anterior side (as middle): Fossoriae (1)

 with inner-proximal convexity bearing long setae: Cryptoprosternata (2, 3B)

 with protuberances on proximal convexity: Polymitarcys/f2=Ephoron/g3 (2)

 widened, with denticulate inner margin: Drunella/g1 (not all) (1), Vietnamella (3)

 widened, with setose inner margin: Mesogenesia/g1 (1)

 widened, with outer margin convex proximally: Leptophlebia/fg1 (8) 

[1.2.29] Setation of fore femur (see also [1.2.1516])

 on inner side 2 rows of long setae: Eusetisura (1)

 on proximal convexity long setae: Cryptoprosternata (3)

 on proximal convexity regular U-shape row of long setae: part of Cryptoprosternata (3B) {Polymitarcys/f1=Ephoron/g2 (1B)}

 on dorsal side transverse row of setae: [Classifications of Furcatergaliae I] (2), Potamanthus/fg1 (not all) (3) {Rhoenanthus/g1 (not all) (VAR)}, Caenotergaliae (not all) (6), Ephemerella/fg1 (not all) (12)

 on dorsal side transverse row continued distally on outer margin: Pantricorythi (not all) (1)

Tibia of larval fore leg [1.2.3035]

[1.2.30] Tibia of fore leg (see also [1.2.1718])

 without patella-tibial suture see [1.2.18]

with vestigial patella-tibial suture: Centroptella (1) 

[1.2.31] Outer margin of fore tibia

 with spine-like setae: Palingenia/f2=g1 (not all) (5) {Pentagenia (P), Chankagenesia (P), Anagenesia/g2 (P), Plethogenesia (P), Cheirogenesia (P)}

 with denticles: part of Palingenia/f2=g1 (5) {Palingenia/f4=g3 (2), Mortogenesia (2)}

[1.2.32] Inner margin of fore tibia

 proximally convex: Eusetisura (1)

 with long setae: Eusetisura (1), Cryptoprosternata (3D), Clypeocaenis/fg1 (1)

 with 2 longitudinal rows of long setae: Eusetisura (1), part of Cryptoprosternata (3D) {Polymitarcys/f1=Ephoron/g2 (1D)}

 with 2 transverse rows of long setae: Clypeocaenis/fg3 (2)

 with dense bipectinate setae: Leptophlebia/fg1 (8)

with dense stout setae: Jappa/g1 () 

[1.2.33] Anterior (dorsal) side of fore tibia

 with long setae: Clypeocaenis/fg2 (2)

 with long setae in oblique row: Cryptoprosternata (3C)

 with long setae in oblique row continuing as 2 longitudinal rows: Polymitarcys/f1=Ephoron/g2 (1C)

 with long setae in 2 oblique rows: Palingenia/f2=g1 (4)

[1.2.34] Posterior (ventral) side of fore tibia

 with tubercles: Polymitarcys/f2=Ephoron/g3 (2)

[1.2.35] Apex of fore tibia

 with appendage: Isonychia/fg1 (5)

 with projection: Euthyplocia/fg1 (3), Drunella/g1 (1)

 with incision: Fossoriae (not all) (1) {Ichthybotus (2), Hexagenia/fg1 (4), Palingenia/f2=g1 (9), "Torephemera"

 without incision: Ephemera/fg10 (3) 

Tarsus of larval fore leg [1.2.36]

[1.2.36] Tarsus of fore leg (see also [1.2.19])

 articulated to anterior side of tibia: Ametropus (3)

 on inner side with 2 rows of setae: Isonychia/fg1 (5)

 with oblique row of long setae: Clypeocaenis/fg3 (2)

 with apical projection: Euthyplocia/fg2 (2), Polyplocia (4)

 vestigial: Homoeoneuria/g1 (1)

 fused with tibia: Protobehningia (1), Campsurus/fg1 (6)

Claw of larval fore leg [1.2.37]

[1.2.37] Claw of fore leg (see also [1.2.2024])

 bifurcate: Metretopus/fg1 (1)

 with setae: Ametropus (3)

 with denticles: Metretopus/fg1 (1), Asthenopus/fg1 (2)

with longer denticles: Callibaetis/fg2 (2)

 vestigial: Homoeoneuria/g1 (not all) (1) {Oligoneurisca (P)}, Eatonigenia (1)

 absent: part of Homoeoneuria/g1 (1) {Homoeoneuria/g2 (1)}

Middle leg of larva [1.2.3843]

[1.2.38] Middle leg (see also [1.2.1124])

 directed forward (as fore leg): Fossoriae (1), Mesogenesia/g1 (2)

 specialized for moving in sand: Behningia/fg2 (1)

[1.2.39] Coxa of middle leg (see also [1.2.12])

 elongate (as hind leg): Homoeoneuria/g1 (2)

 with gill (as fore leg): Siphluriscus (1)

[1.2.40] Femur of middle leg (see also [1.2.1416])

 widened (as fore leg): Acanthametropus/fg1 (2)

 widened (as hind leg): Rhionella (1)

 with filtering setae (as fore leg): Coloburiscus/fg1 (3)

 with concave anterior side (as fore leg): Exeuthyplocia/fg1 (3), Fossoriae (1)

 shortened: Behningia/fg2 (1)

[1.2.41] Tibia of middle leg (see also [1.2.1718])

 shortened (as hind leg): Oligoneurisca (1)

 wide, with inner-apical projection: Behningia/fg2 (1)

 without patella-tibial suture (unlike hind leg) see [1.2.18]

 with patella-tibial suture (as hind leg) see [1.2.18]

 with patella-tibial suture (unlike other legs): part of Euthyplocia/fg1 (VAR), Behningia/fg3 (2)

[1.2.42] Tarsus of middle leg (see also [1.2.19])

 with reversed setation (as hind leg): Oligoneurisca (1)

 wide, arched: Behningia/fg2 (1)

[1.2.43] Claw of middle leg (see also [1.2.2024])

 straight (as hind leg): Homoeoneuria/g1 (2)

 with 2 rows of denticles (as hind leg): Oligoneurisca (1)

 without denticles (as hind leg): Homoeoneuria/g2 (1)

Hind leg of larva [1.2.4449]

[1.2.44] Hind leg (see also 1.2.1124])

 specialized for moving in sand: Behningia/fg2 (1)

[1.2.45] Coxa of hind leg (see also [1.2.12])

 enlarged: Behningia/fg2 (1)

 elongate (as middle leg): Homoeoneuria/g1 (2)

[1.2.46] Femur of hind leg (see also [1.2.1416])

 lamelliform: Homoeoneuria/g1 (2), Behningia/fg3 (2)

 widened (as middle leg): Rhionella (1)

 on inner side with spiny setae: Fimbriatotergaliae (not all) (9)

 on inner side without spiny setae: part of Fimbriatotergaliae (9) {Palingenia/f2=g1 (11), Behningia/fg1 (14), Caenotergaliae (11)}

[1.2.47] Tibia of hind leg (see also [1.2.1718])

 shortened (as middle leg): Oligoneurisca (1)

 on inner side with spiny setae: Fimbriatotergaliae (not all) (9)

 on inner side without spiny setae: part of Fimbriatotergaliae (9) {Palingenia/f2=g1 (11), Behningia/fg1 (14), Caenotergaliae (11)}

 on outer side with stout setae: Leptophlebia/fg1 (8)

 on inner-distal margin with projection: Ephemera/fg9 (3), Palingenia/f2=g1 (10)

 strongly diminished: Behningia/fg2 (1)

 with patella-tibial suture (unlike other legs) see [1.2.18]

 with patella-tibial suture (as middle leg) see [1.2.18]

 without patella-tibial suture (unlike middle leg): part of Euthyplocia/fg1 (VAR), Behningia/fg3 (2)

[1.2.48] Tarsus of hind leg (see also [1.2.19])

 with reversed setation (as middle leg): Oligoneurisca (1)

 elongate: Behningia/fg2 (1)

 bent in joining with tibia: Behningia/fg3 (2)

[1.2.49] Claw of hind leg (see also [1.2.2024])

 longer than fore and middle: Acanthametropus/fg1 (2)

 straight (as middle leg): Homoeoneuria/g1 (2)

 with 2 rows of denticles (as middle): Oligoneurisca (1)

 without denticles (as middle): Homoeoneuria/g2 (1)

Common features of larval legs [1.2.5053]

[1.2.50] Common for all legs see [1.2.1124]

[1.2.51] Common for fore and middle leg

 with gill: Siphluriscus (1)

 femur widened: Acanthametropus/fg1 (2)

 femur concave anteriorly: Exeuthyplocia/fg1 (3), Fossoriae (1)

 tibia with 2 rows of long setae: Coloburiscus/fg1 (3)

 femur with row of long thin setae: Indialis/g1 (1), Sangpradubina (1)

 without patella-tibial suture see [1.2.18] 

[1.2.52] Common for middle and hind leg

 specialized for moving in sand: Behningia/fg2 (1)

 coxa elongate: Homoeoneuria/g1 (2)

 femur widened: Rhionella (1)

 with patella-tibial suture see [1.2.18]

 tibia shortened, tarsus with reversed setation, claw with 2 rows of denticles: Oligoneurisca (1)

 claw straight: Homoeoneuria/g1 (2)

 claw without denticles: Homoeoneuria/g2 (1)

[1.2.53] Common for fore and hind leg

 without patella-tibial suture: part of Euthyplocia/fg1 (VAR), Behningia/fg3 (2)