Table 1 Numbers and distribution of bullae throughout different taxa of extant and fossil mayflies

Permoplectoptera

 Protereismatidae †

Protereisma insigne

x

-

x

x

-

x

Ephemeroptera

Siphlonuroidea

 Siphluriscidae

Siphluriscus chinensis

x

x

x

x

x

x

 Oniscigastridae

Siphlonella ventilans

x

x

x

x

-

x

 Nesameletidae

Metamonius anceps

x

x

x

x

-

x

 Rallidentidae

Rallidens mcfarlanei

x

x

x

x

-

x

 Ameletopsidae

Chiloporter eatoni

x

x

x

x

-

x

 Dipteromimidae

Dipteromimus tipuliformis

x

x

x

x

-

x

 Siphlonuridae

Siphlonurus croaticus

x

-

x

x

-

x

 Acanthametropodidae

Acanthametropus nikolskyi

x

-

x

x

-

x

 Ameletidae

Ameletus inopinatus

x

-

x

x

-

x

Metreletus balcanicus

x

-

x

x

-

x

 Metretopodidae

Siphloplecton sp.

x

-

x

x

-

x

 Ametropodidae

Ametropus fragilis

x

-

x

x

-

-

Baetoidea

 Siphlaenigmatidae

Siphlaenigma janae

x

-

x

x

-

-

 Baetidae: Palaeocloeoninae †

undescribed genus and species

x

-

x

x

-

-

 Baetidae: Baetinae

Baetis rhodani

x

-

x

x

-

-

Heptagenioidea

 Hexagenitidae †

undescribed genus and species

x

-

x

x

-

-

 Coloburiscidae

Murphyella needhami

x

-

x

x

-

x

Coloburiscus humeralis

x

-

x

x

-

x

 Isonychiidae

Isonychia berneri

x

-

x

x

-

x

 Oligoneuriidae

Chromarcys magnifica

x

-

x

x

-

x

Lachlania dominguezi

-

-

-

-

-

-

Oligoneuriella rhenana

-

-

-

-

-

-

 Heptageniidae

Heptagenia longicauda

x

-

x

x

-

x

Epeorus assimilis

x

-

x

x

-

x

Ecdyonurus venosus

x

-

x

x

-

x

Leptophlebioidea

 Leptophlebiidae

Calliarcys humilis

x

-

x

x

-

x

Paraleptophlebia submarginata

x

-

x

x

-

x

Habroleptoides confusa

x

-

x

x

-

-

Thraulodes consortis

x

-

x

x

-

x

Miroculis misionensis ♀

x

-

x

x

-

x

Miroculis misionensis ♂

x

-

x

x

-

-

Ephemeroidea

 Australiphemeridae †

undescribed genus and species

x

-

x

x

-

x

 Potamanthidae

Potamanthus luteus

x

-

x

x

-

x

 Ephemeridae

Ephemera danica

x

-

x

x

-

x

 Palingeniidae

Palingenia longicauda ♂

x

-

x

x

-

-

Palingenia longicauda ♀

(x)

-

(x)

(x)

-

-

 Euthyplociidae

Euthyplocia hecuba

x

-

x

x

-

-

 Polymitarcyidae

Ephoron virgo ♂

x

-

x

x

-

-

Ephoron virgo ♀

-

-

-

-

-

-

Campsurus cotaxe

-

-

-

-

-

-

 Behningiidae

Dolania americana ♂ / ♀

-

-

-

-

-

-

Ephemerelloidea

 Ephemerellidae

Eurylophella trilineata

x

-

x

x

-

x

Serratella ignita

x

-

x

x

-

-

 Leptohyphidae

Leptohyphes cornutus

x

-

x

x

-

-

 Coryphoridae

Coryphorus aquilus

x

-

x

x

-

-

 Melanemerellidae

Melanemerella brasiliana

?

?

?

?

?

?

 Teloganellidae

Teloganella sp.

?

?

?

?

?

?

 Tricorythidae

Tricorythus discolor

x

-

x

x

-

-

 Machadorythidae

Machadorythus maculatus

x

-

x

x

-

-

 Dicercomyzidae

Dicercomyzon marginatum

x

-

x

x

-

-

 Teloganodidae

Teloganodes sp.

x

-

x

x

-

-

 Ephemerythidae

Ephemerythus niger

x

-

x

x

-

-

 Vietnamellidae

Vietnamella thani

x

-

x

x

-

-

 Austremerellidae

Austremerella picta

?

?

?

?

?

?

Caenoidea

 Neoephemeridae

Neoephemera youngi

x

-

x

x

-

-

 Caenidae

Caenis horaria ♂

x

-

x

x

-

-

Prosopistomatoidea

 Baetiscidae

Baetisca rogersi ♂

x

-

x

x

-

x

 Prosopistomatidae

Prosopistoma variegatum

-

-

-

-

-

-