order
![](/images/illustrations/illustration_coleoptera_adult_v_160.png)
Coleoptera
“Adult Beetles”
![](/images/illustrations/illustration_coleoptera_larva_v_160.png)
Coleoptera
“Larval Beetles”
![](/images/illustrations/illustration_diptera_larva_v_160.png)
Diptera
“True Flies”
![](/images/illustrations/illustration_ephemeroptera_larva_v_160.png)
Ephemeroptera
“Mayflies”
![](/images/illustrations/illustration_hemiptera_adult_v_160.png)
Hemiptera
“True Bugs”
![](/images/illustrations/illustration_lepidoptera_larva_v_160.png)
Lepidoptera
“Aquatic Caterpillars, Snout Moths”
![](/images/illustrations/illustration_megaloptera_larva_v_160.png)
Megaloptera
“Alderflies, Dobsonflies, and Fishflies”
![](/images/illustrations/illustration_odonata_larva_v_160.png)
Odonata
“Dragonflies and Damselflies”
![](/images/illustrations/illustration_plecoptera_larva_v_160.png)
Plecoptera
“Stoneflies”
![](/images/illustrations/illustration_trichoptera_larva_v_160.png)
Trichoptera
“Caddisflies”
family
Siphlonuridae
“Primitive Minnow Mayflies”
Family Overview
Siphlonuridae
![Listen to the pronunciation of siphlonuridae](/images/buttons/audio.png)
Primitive Minnow Mayflies
The labrum (upper lip) is not notched in the middle; the antennae are shorter than twice the width of the head; the maxillae on the underside of the head lack prominent rows of golden spines; the abdominal gills are rounded and similar to each other in structure; 3 long slender filaments at the end of the body are about equally long.
Characteristics
POLLUTION TOLERANCE
Mid-Atlantic: up to 2
Upper Midwest: 2 - 7
Southeast: 2.6 - 3.1
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Collector / Gatherer
MOVEMENT
Climber
Swimmer
Swimmer
Diagnostic Characters
Order
![](https://static.macroinvertebrates.org/gigapans/188543/images.e5ef604e3ca06bc87ebdab77fabadcd9/188543-120x120-10205-18643-3277-11716.jpg)
Abdominal Gills
![](https://static.macroinvertebrates.org/gigapans/188543/images.e5ef604e3ca06bc87ebdab77fabadcd9/188543-120x120-1670-2445-1787-2562.jpg)
Single Tarsal Claw
![](https://static.macroinvertebrates.org/gigapans/188543/images.e5ef604e3ca06bc87ebdab77fabadcd9/188543-120x120-21352-27989-4433-11070.jpg)
Usually 3 Tails
Family
![](https://static.macroinvertebrates.org/gigapans/188543/images.e5ef604e3ca06bc87ebdab77fabadcd9/188543-120x120-21801-30178-3531-11908.jpg)
3 "Tails" Subequal
![](https://static.macroinvertebrates.org/gigapans/203302/images.91fc01ba60860771a220a42c6a1f7d13/203302-120x120-691-6713-3565-9587.jpg)
Distal Margin of Labrum Straight
![](https://static.macroinvertebrates.org/gigapans/188543/images.e5ef604e3ca06bc87ebdab77fabadcd9/188543-120x120-9295-13315-3886-7906.jpg)
Gills on 1-7 Plate-like
![](https://static.macroinvertebrates.org/gigapans/188543/images.e5ef604e3ca06bc87ebdab77fabadcd9/188543-120x120-420-6360-4509-10449.jpg)
Short Antennae
+ Expanded Character List
Order:
Wings developing in wing pads. Mouthparts suitable for chewing. Gills present on tops and sides of abdomen. Segmented legs present. One tarsal claw per leg. Usually with 3 tails (sometimes 2).
Family:
The labrum (upper lip) is not notched in the middle; the antennae are shorter than twice the width of the head; the maxillae on the underside of the head lack prominent rows of golden spines; the abdominal gills are rounded and similar to each other in structure; 3 long slender filaments at the end of the body are about equally long.
Dorsal
Ventral