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Hatches › Terrestrial
Coleoptera · order
Beetles are high-calorie terrestrials that become easy trout meals when blown or dropped onto the water.
Category
Terrestrial
Category
The insect or forage category for this profile.
Size
Varies widely by species; most fly imitations fish well in small to medium terrestrial sizes.
Size
Typical size range anglers imitate on the water.
Key stages
Eggs, First Instar, Second Instar, Third Instar, Pupa, Adult
Key stages
Life stages most relevant to fly fishing this hatch or forage.
Water types
rivers, streams, creeks, spring creeks, lakes, pond edges
Water types
Water types where this bug or forage is commonly found.
Beetles are insects in the order Coleoptera, defined by hardened forewings called elytra. With enormous diversity and many forms living around bankside vegetation, the adult stage is the one anglers most often imitate when fish key on terrestrials.
Female beetles deposit their eggs in soil or decaying wood, providing a nursery for the young as they begin to develop.
Tiny grubs hatch from the eggs and immediately start feeding on decaying organic matter to grow.
At this stage, the larvae continue to grow in size and consume food, typically remaining below the surface.
These larger grubs focus on storing energy, which is crucial for their upcoming transformation into the pupal stage.
Inside a protected chamber, the beetle transforms, developing its full adult body structure during this resting stage.
Adult beetles emerge from their pupal stage in the soil or rotting wood. They are then capable of crawling or flying, often found in streamside habitats.
Beetle
One species, multiple rivers.
