“Aquatic Caterpillars, Snout Moths”
“Alderflies, Dobsonflies, and Fishflies”
“Dragonflies and Damselflies”
“Small Minnow Mayflies”
21 species in North America. The genus was once considerably larger but species have been moved to new genera. Older specimen collections should be revisited as nomenclature has changed greatly over the last 10-30 years.
Southeast: 3.6 and higher
Scraper / Grazer
Single Tarsal Claw
Usually 3 Tails
Notched Upper Lip
+ 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: Labrum usually with median notch and antennae usually long (at least two or three times the width of the head). If median notch absent, then antennae long; if antennae shorter, then distal margin of the labrum always notched. Claws of all legs similarly shaped, usually pointed, rarely broad at the apex; claws of varying lengths, if claws of middle and hind legs long and slender, they are usually shorter than tibiae, except for few rare genera. Abdominal gills roughly oval or heart-shaped. Gill lamellae either single, double, or triple folded; rarely with fringe on inner margins, never with terminal filaments or pointed ends. Mature larvae 3-12 mm long.
Genus: Labial palps variable. Abdominal gills simple. Villopore present on all femurs (mounting the leg is necessary) Two or Three tailed. Hindwings present or absent. Claws are less than half as long as the tarsi.