**Mayfly Genus Labiobaetis (Tiny Blue-Winged Olives)**

Mayflies

Caddisflies

Stoneflies

Taxonomic Navigation -?-

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Ephemeroptera (Mayflies)

» Family Baetidae (Blue-Winged Olives)

» Genus Labiobaetis (Tiny Blue-Winged Olives)

Species in Labiobaetis
Labiobaetis propinquusTiny Blue-Winged Olive	0	0

6 species aren't included.

Common Names

Match	Common Name
	Tiny Blue-Winged Olives
	Little Iron Blue Quills
	Little Blue-Winged Olives

This genus contains only one species of interest to anglers, Labiobaetis propinquus. See the species hatch page for more information.

The species of this genus can be identified by the combination of its tiny elliptical hindwings lacking costal projections (

The costal projection of a Baetidae dun.

Costal projection: A bump or point sticking up from the front margin of an insect's wing, usually the rear wing of certain mayflies. It is sometimes called a costal process.) ( a few obscure species have them but they are so reduced as to be barely observable under low magnification) and lacking a conical mesonotal projection (Conical mesonotal projection: small cone shaped spike sticking up from the top and front part of the middle thorax segment.). Their two tailed nymphs are more difficult.

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Jargon Defined:

Conical mesonotal projection: small cone shaped spike sticking up from the top and front part of the middle thorax segment.

The costal projection of a Baetidae dun.

Costal projections: A bump or point sticking up from the front margin of an insect's wing, usually the rear wing of certain mayflies. It is sometimes called a costal process.

Nymphs: The juvenile, underwater stages of mayflies, stoneflies, dragonflies, and damselflies and other aquatic insects whose juvenile stages are covered by hard exoskeletons. The word can also refer to the fishing flies which imitate these creatures, in which case it is used as a blanket term for flies imitating any underwater stage of an invertebrate (except for crayfish and leeches).