Family: Baetidae

Small Minnow Mayflies

These photos supplement pages 49-62 of the Guide to Aquatic Invertebrates of the Upper Midwest. Information on the biology of Baetidae can be found on page 56. Baetidae look similar to Siphlonuridae, although Baetidae have a notched labrum and antennae at least 2x the width of the head. Click to compare with Siphlonuridae.

Baetidae

Baetidae labrum

Baetidae gills Baetidae gills Baetidae gills

Ephemeroptera

BaetidaeBaetidae
Minnow Mayflies

Baetiscidae

Baetiscidae
Armored Mayflies

CaenidaeCaenidae
Square-Gill Mayflies
 

EphemerellidaeEphemerellidae
Spiny Crawler Mayflies
 

EphemeridaeEphemeridae
Burrowing Mayflies

HeptageniidaeHeptageniidae
Flathead Mayflies
 

IsonychiidaeIsonychiidae
Brush-Legged Mayflies

LeptophlebiidaeLeptophlebiidae
Prong-Gilled Mayflies

MetretopodidaeMetretopodidae
Cleft-Footed Mayflies

PolymitarcyidaePolymitarcyidae
Pale Burrowing Mayflies

PotamanthidaePotamanthidae
Hacklegill Mayflies

SiphlonuridaeSiphlonuridae
Primitive Minnow Mayflies

TricorythidaeTricorythidae
Stout Crawler Mayflies