stone fly
Học thuậtThân thiện
Definition
Noun: 1. A primitive winged insect with a flattened body: A stone fly is a type of insect belonging to the order Plecoptera. Adults have two pairs of wings that fold flat over their body. 2. Used as bait by fishermen: The adult insect is commonly used as artificial or live bait for fishing. 3. Aquatic gilled larvae are carnivorous and live beneath stones: The immature stage (nymph or larva) of this insect lives in clean, fast-moving streams and rivers. It has gills, eats other small aquatic animals, and is typically found hiding under rocks.
Usage Examples
- Noun:
- The angler carefully selected a stone fly from his tackle box.
- A stone fly landed on the surface of the stream.
- The health of a river can be measured by the presence of stone fly larvae.
Advanced Usage
- As an indicator species: In ecology, the presence of stone fly nymphs is often used as a bioindicator of good water quality, as they are sensitive to pollution.
- Scientists found stone flies, indicating the stream water was very clean.
Variants and Related Words
- Plecoptera: The scientific order name for stone flies.
- Nymph / Larva: Terms for the immature, aquatic life stage of a stone fly.
- Salmon fly / Golden stone fly: Specific common names for types or patterns of stone flies used in fly fishing.
Synonyms
- Plecopteran (scientific synonym)
- Rock fly (less common)
Related Phrases / Terms
- Stone fly pattern: In fly fishing, this refers to an artificial fly tied to imitate the appearance of a stone fly.
- He tied on a stone fly pattern to match the hatch.
- Stone fly hatch: An event where many adult stone flies emerge from the water simultaneously, often triggering active feeding by fish.
- The trout fishing was excellent during the stone fly hatch.
Noun
- primitive winged insect with a flattened body; used as bait by fishermen; aquatic gilled larvae are carnivorous and live beneath stones