**Caddisfly Genus Oligophlebodes (Little Western Dark Sedges)**

Mayflies

Caddisflies

Stoneflies

Taxonomic Navigation -?-

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Trichoptera (Caddisflies)

» Family Uenoidae

» Genus Oligophlebodes (Little Western Dark Sedges)

Species in Oligophlebodes
Oligophlebodes minutaLittle Western Dark Sedge	0	0
Oligophlebodes sierraLittle Western Dark Sedge	0	0
Oligophlebodes sigmaLittle Western Dark Sedge	0	0

4 species aren't included.

Common Name

Match	Common Name
	Little Western Dark Sedges

Where & When

Region: West

Time Of Year (?): August and September

All Oligophlebodes species of significance to fly fishermen occur in the West.

They also occur, but not in significant numbers, in the Midwest.

Hatching Behavior

Time Of Day (?): Midday

Egg-Laying Behavior

Time Of Day: Late afternoon

Females of this genus fall to the surface to lay their eggs.

Larva & Pupa Biology

Shelter Type: Stone

The cased larvae exhibit heavy behavioral drift (Behavioral drift: The nymphs and larvae of many aquatic insects sometimes release their grip on the bottom and drift downstream for a while with synchronized timing. This phenomenon increases their vulnerability to trout just like emergence, but it is invisible to the angler above the surface. In many species it occurs daily, most often just after dusk or just before dawn.) near midday for a couple months before emerging.

Your Thoughts On Oligophlebodes:

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Jargon Defined:

Behavioral drift: The nymphs and larvae of many aquatic insects sometimes release their grip on the bottom and drift downstream for a while with synchronized timing. This phenomenon increases their vulnerability to trout just like emergence, but it is invisible to the angler above the surface. In many species it occurs daily, most often just after dusk or just before dawn.

Larvae: Many classes of aquatic insects, such as caddisflies, midges, craneflies, dobsonflies, alderflies, and many more, are known as "larvae" rather than "nymphs" in their juvenile stages. They have mostly soft bodies rather than hard exoskeletons. These insects also advance through a "pupa" stage before reaching adulthood.

Useful References:

LaFontaine, Gary. 1981. Caddisflies. The Lyons Press.