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Mayflies

Gills along the abdomen, and 3 slender or feathered tails
[Ichthybotus]. Image: Stephen Moore

Burrowing mayfly (Ichthybotus)

[Ichthybotus] mayfly nymphs have delicate slender bodies, feather-like gills, fringed caudal filaments (“tails”) and tusk-like mandibles ...

[Arachnocolus]. Image: Stephen Moore

Double gill mayfly (Arachnocolus)

[Arachnocolus] mayfly nymphs have double gills, long thin legs (particularly the femur and tibia), and a generally pale body colour.

[Atalophlebioides]. Image: Stephen Moore

Double gill mayfly (Atalophlebioides)

[Atalophlebioides] mayfly nymphs have a flattened body form, double gills and a wide labrum (top “lip”).

[Aupouriella]. Image: Stephen Moore

Double gill mayfly (Aupouriella)

[Aupouriella] mayfly nymphs are very delicate as the abdomen, legs and double gills are all slender. The abdomen has striking dark markin...

[Austroclima]. Image: Stephen Moore

Double gill mayfly (Austroclima)

[Austroclima] mayfly nymphs have a flattened body form, with generally dark brown colouring, double gills, and no sharp spines on the abd...

[Austronella]. Image: Stephen Moore

Double gill mayfly (Austronella)

[Austronella] mayfly nymphs have a flattened body form, with generally pale colouring, and slender double gills. The prothorax (segment i...

[Mauiulus]. Image: Stephen Moore

Double gill mayfly (Mauiulus)

[Mauiulus] mayfly nymphs have a flattened body form, slender double gills and no sharp abdominal spines. The prothorax (segment immediate...

[Neozephlebia]. Image: Stephen Moore

Double gill mayfly (Neozephlebia)

[Neozephlebia] mayfly nymphs have a flattened body form, a long oval abdomen and very slender double gills.

[Tepakia]. Image: Stephen Moore

Double gill mayfly (Tepakia)

[Tepakia] mayfly nymphs have a flattened body form, with “M” shaped patterning on the abdominal segments. The double gills are leaf-like,...

[Zephlebia]. Image: D Towns

Double gill mayfly (Zephlebia)

[Zephlebia] mayfly nymphs have a flattened body form, sharp spines on some abdominal segments, and double abdominal gills. There are nume...

[Isothraulus]. Image: Stephen Moore

Fringe gilled mayfly (Isothraulus)

[Isothraulus] mayfly nymphs have a flattened body form, and the double gills are extensively fringed.

[Acanthophlebia]. Image: Stephen Moore

Orange mayfly (Acanthophlebia)

[Acanthophlebia] mayfly nymphs have a flattened body form, large double leaf-like gills, large abdominal spines and a general orange-brow...

[Deleatidium]. Image: Stephen Moore

Single gill mayfly (Deleatidium)

[Deleatidium] mayfly nymphs have a flattened body form, single leaf-like gills and a wide labrum (top “lip”).

[Coloburiscus]. Image: Stephen Moore

Spiny gilled mayfly (Coloburiscus)

[Coloburiscus] mayfly nymphs are easily distinguished by the cactus-like gills covering the top of the abdomen. The front and mid legs ar...

[Ameletopsis]. Image: Stephen Moore

Swimming mayfly (Ameletopsis)

[Ameletopsis] mayfly nymphs have a wide, skull-like head, and their caudal filaments (“tails”) are fringed on each side.

[Nesameletus]. Image: Stephen Moore

Swimming mayfly (Nesameletus)

[Nesameletus] mayfly nymphs have a torpedo-like body form, fringed caudal filaments (“tails”), short antennae and single leaf-like abdomi...

[Oniscigaster]. Image: Stephen Moore

Swimming mayfly (Oniscigaster)

[Oniscigaster] mayfly nymphs have a torpedo-like body form, fringed caudal filaments (“tails”), large spines along the sides and top of t...

[Rallidens]. Image: Stephen Moore

Swimming mayfly (Rallidens)

[Rallidens] mayfly nymphs have a torpedo-like body form, fringed caudal filaments (“tails”), short antennae and double abdominal gills (t...

[Siphlaenigma]. Image: Stephen Moore

Swimming mayfly (Siphlaenigma)

[Siphlaenigma] mayfly nymphs have a torpedo-like body form, and look like small delicate [Nesameletus], but unlike [Nesameletus] they hav...