sâu gai
Definition
- Noun:
- Thorny caterpillar: A type of caterpillar characterized by having sharp, thorn-like spines or bristles on its body. These spines are often urticating, meaning they can cause skin irritation or a stinging sensation upon contact.
- Common name for Hispid beetles (larval stage): In entomology, "sâu gai" can refer to the larval form of beetles in the family Chrysomelidae, subfamily Hispinae (sometimes classified as Hispidae), known for their spiny appearance.
Usage Examples
- Noun:
- Trẻ con không nên chạm vào sâu gai vì có thể bị ngứa. (Children should not touch the thorny caterpillar because it can cause itching.)
- Sâu gai thường ăn lá cây. (Thorny caterpillars often eat tree leaves.)
- Nhiều loài sâu gai là dịch hại của cây trồng. (Many species of hispid larvae are agricultural pests.)
Advanced Usage
- The term is primarily used in a zoological or agricultural context to describe a specific physical trait (possession of spines) rather than a single scientific species. It can encompass various species of caterpillars or beetle larvae with similar morphology.
Variants and Related Words
- Sâu (n): A general term for worm, larva, or caterpillar.
- Gai (n): Thorn, spine, or prickle.
- Bọ gai (n): Literally "thorny beetle," which may refer to the adult form of Hispid beetles.
Synonyms
- Spiny caterpillar
- Hispid larva (technical)
- Urticating caterpillar (if the spines cause irritation)
Notes on Meaning
- The reference to "hispa" from the Vietnamese-French dictionary points to the genus or the related group Hispini, which are leaf-mining or leaf-feeding beetles known for their spiny larvae and adults. Therefore, "sâu gai" accurately describes the larval stage of these insects.
- In common, non-scientific language, any caterpillar with a conspicuously spiny appearance may be called "sâu gai" by Vietnamese speakers, regardless of its exact taxonomic family.