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
Elmidae
Dubiraphia
“Riffle Beetles”
Genus Overview
There are 11 species in North America.
Characteristics
POLLUTION TOLERANCE
Southeast: 6.4 and higher
Upper Midwest: 6 and higher
Midwest: 3.2 and higher
Mid-Atlantic: 6 and higher
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Collector / Gatherer
Scraper / Grazer
Shredder / Herbivore
Scraper / Grazer
Shredder / Herbivore
MOVEMENT
Climber
Clinger
Clinger
DISTRIBUTION
Widespread (east of the Rocky Mtns.)
HABITAT
Lotic-depositional
Lotic-erosional
Lotic-erosional
Diagnostic Characters
Order
![](https://static.macroinvertebrates.org/gigapans/196850/images.dd76d9429c4507756b18baaba295daae/196850-120x120-2269-3926-785-2443.jpg)
Elytra
Family
![](https://static.macroinvertebrates.org/gigapans/196850/images.dd76d9429c4507756b18baaba295daae/196850-120x120-2694-3872-103-1281.jpg)
5-Segmented Tarsi
![](https://static.macroinvertebrates.org/gigapans/196850/images.dd76d9429c4507756b18baaba295daae/196850-120x120-3988-5110-432-1554.jpg)
Big Claws
![](https://static.macroinvertebrates.org/gigapans/196850/images.dd76d9429c4507756b18baaba295daae/196850-120x120-142-2157-0-1718.jpg)
Last Tarsal Segment
![](https://static.macroinvertebrates.org/gigapans/196850/images.dd76d9429c4507756b18baaba295daae/196850-120x120-926-1724-683-1480.jpg)
Thread-like Antennae
Genus
![](https://static.macroinvertebrates.org/gigapans/196851/images.6842fd23eee618ad81f7eade0e5cc3b4/196851-120x120-3600-4355-1217-1972.jpg)
Epipleura
![](https://static.macroinvertebrates.org/gigapans/196851/images.6842fd23eee618ad81f7eade0e5cc3b4/196851-120x120-987-2217-1019-2249.jpg)
Prosternal Process
![](https://static.macroinvertebrates.org/gigapans/196850/images.dd76d9429c4507756b18baaba295daae/196850-120x120-1230-2247-1619-2637.jpg)
Tomentum of tibia
+ Expanded Character List
Order:
Adults with hardened forewings (elytra) covering the hind wings.
Family:
Terminal segment of each antenna no longer than combined length of 2 preceding segments; antennae thread-like. Elytra concealing entire abdomen or exposing only part of 1 tergite. Each leg with 5 tarsal segments, last tarsal segment about as long as other segments combined and with big claws. Abdomen with 5 visible segments.
Genus:
The genus is determined by the fringe of hair on the front tibia and stripes of color on the elytra. They are all elongated in size and elytra are parallel-sided then taper to a round point.
![](https://static.macroinvertebrates.org/gigapans/196850/images.dd76d9429c4507756b18baaba295daae/196850-407x240.jpg)
![](https://static.macroinvertebrates.org/gigapans/196851/images.6842fd23eee618ad81f7eade0e5cc3b4/196851-402x240.jpg)
Dorsal
Ventral