ladybeetle
Học thuậtThân thiện
Definition
Noun 1. A small, round, brightly colored and often spotted beetle: A type of insect characterized by its small, hemispherical shape, typically with red or orange wing covers (elytra) marked with black spots. It is part of the family Coccinellidae and is known for being a beneficial predator in gardens and farms.
Usage
The word "ladybeetle" is used to refer to the insect itself. It is a common term in North American English, synonymous with "ladybug" or "ladybird beetle." - It is primarily used as a countable noun. - It often appears in contexts related to gardening, biology, ecology, and pest control.
Examples
- General Reference:
- The children were delighted to find a ladybeetle on the sunflower leaf.
- Gardeners appreciate ladybeetles because they eat aphids.
- Scientific/Educational Context:
- The life cycle of a ladybeetle includes four stages: egg, larva, pupa, and adult.
- A ladybeetle can consume dozens of pest insects in a single day.
Advanced Usage
- As a symbol: The ladybeetle is often used as a symbol of good luck, particularly in some European cultures.
- She considered the ladybeetle landing on her hand a sign of good fortune.
- In compound nouns (for reference only): While "ladybeetle" itself is a single word, it is the core of terms like "ladybeetle larva," which refers to the immature, predatory stage of the insect.
Variants and Related Words
- Ladybug (noun): The more common term in everyday American English.
- Ladybird (noun): The common term in British English.
- Ladybird beetle (noun): A fuller, more formal variant.
- Coccinellid (noun): The scientific family name for all ladybeetles.
Synonyms
- Ladybug (primarily US)
- Ladybird (primarily UK)
- Ladybird beetle
Related Phrases/Idioms
- "Ladybug, ladybug, fly away home": The first line of a traditional nursery rhyme or children's saying often addressed to a ladybeetle.
- The child gently chanted, "Ladybug, ladybug, fly away home," as it crawled on her finger.
Noun
- small round bright-colored and spotted beetle that usually feeds on aphids and other insect pests