Canadian Petrophila

Petrophila canadensis

The Canadian Petrophila is a special kind of moth that loves to flutter around near water. Its wings are beautiful and can be spotted in different colors, making it a lovely sight during summer evenings.

Habitat: Wetlands

Appearance

The Canadian Petrophila is a small, delicate moth, typically sporting white to pale cream wings often adorned with subtle brown or grayish markings. Its wings usually have a satiny sheen, making it blend well near water, and its slender body is also pale.

KingdomAnimaliaPhylumArthropodaClassInsectaOrderLepidopteraFamilyCrambidaeGenusPetrophila

Canadian Petrophila

Interesting facts

Adult Canadian Petrophila moths have a very short lifespan, sometimes lasting only a few days.

Its caterpillars are fully aquatic and spend their entire larval stage underwater!

Some species of Petrophila larvae build tube-like shelters made of silk and plant debris.

Unlike most moths, its larvae eat algae, scraping it off rocks in rivers and streams.

Special abilities

Canadian Petrophila larvae can breathe underwater because they have special tracheal gills, allowing them to live and feed entirely submerged.

Canadian Petrophila larvae have strong legs and hooks that help them cling tightly to rocks and submerged plants, preventing them from being swept away by currents.

Canadian Petrophila larvae can spin silken cases or tunnels because they produce silk, which shelters them from predators and helps them feed safely.

Canadian Petrophila adults have tiny scales on their wings that repel water, helping them stay dry and fly effectively near humid aquatic environments.

Measurements & details

Wingspan: 12-20 mm
Size: 6-10 mm
Lifespan: 5-10 days
Flight Speed: 8 km/h
Leg Count: 6

Diet & Feeding

Larvae munch on algae and tiny bits of plants found underwater.

Age differences: Larvae are aquatic herbivores, while adult moths typically have reduced mouthparts and do not feed.

Primary Foods

Filamentous algae
Diatoms
Submerged plant detritus

Foraging Method

Foraging

Ecological connections

eats

Pond Scum

Spirogyra fluctuata

Larvae feed on this filamentous algae found in water.

eaten by

Largemouth Bass

Micropterus salmoides

Fish readily consume the aquatic larvae and pupae.

eaten by

Common Green Darner

Anax junius

Dragonfly nymphs hunt aquatic larvae.

Traits

Aerial

Aerial creatures spend a significant portion of their lives airborne, utilizing flight for various activities such as hunting, migration, or nesting.

Colorful

Colorful describes organisms or objects displaying a wide range of bright and distinct colors.

Herbivorous

This trait characterizes organisms whose diet consists entirely or primarily of plant material.

Pollinator Magnet

Describes plants that are particularly attractive and beneficial to a wide range of pollinating organisms.

Wetland

This habitat trait identifies species found in wetlands, which are areas of land saturated with water, either permanently or seasonally, including marshes, swamps, and bogs.