leatherjacket
LowInformal, Technical (Entomology/Horticulture)
Definition
Meaning
The larval stage of certain crane flies (Tipulidae), a grub-like pest that damages lawns and plant roots.
A common name for various other creatures or objects: 1) A type of fish with tough skin, also known as leatherjacket fish. 2) (Rare/Historical) A short coat or jacket made of leather.
Linguistics
Semantic Notes
The term is polysemous, but the larval pest meaning is predominant in UK/Irish contexts. The fish meaning is common in Australian/NZ contexts. The clothing meaning is now largely archaic.
Dialectal Variation
British vs American Usage
Differences
In the UK, 'leatherjacket' overwhelmingly refers to the lawn-damaging grub. In the US, this pest is more commonly called a 'crane fly larva' or 'European crane fly larva', making 'leatherjacket' a less familiar term. The fish meaning is not common in US waters.
Connotations
UK: Primarily negative, associated with garden pests and lawn damage. US: Unfamiliar for most; if used, likely refers to the fish or historical clothing.
Frequency
High frequency in UK gardening/agricultural contexts. Very low frequency in general US English.
Vocabulary
Collocations
Grammar
Valency Patterns
The lawn is infested with leatherjackets.Leatherjackets feed on (grass roots).Birds prey on leatherjackets.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None specific to this term.”
Usage
Context Usage
Business
Rare, except in gardening/agricultural supply companies discussing pest control products.
Academic
Used in entomology, horticulture, and agricultural science papers.
Everyday
Common in UK/Irish conversations about gardening problems.
Technical
Precise term for the larval stage of certain Tipulidae species.
Examples
By Part of Speech
verb
British English
- The lawn was completely leatherjacketed.
- The crows are leatherjacketing the field.
American English
- N/A - Verb use is extremely rare in AmE.
adverb
British English
- N/A
American English
- N/A
adjective
British English
- We have a serious leatherjacket problem.
- Look for leatherjacket damage in early spring.
American English
- N/A - Adjective use is extremely rare in AmE.
Examples
By CEFR Level
- The black birds are eating leatherjackets from the grass.
- My lawn has brown patches. Maybe it's leatherjackets.
- We need to treat the lawn because leatherjackets are eating the roots.
- Leatherjackets turn into crane flies, which look like giant mosquitoes.
- An infestation of leatherjackets can devastate a bowling green or sports field overnight.
- Biological control using nematodes is an effective way to target leatherjackets without chemicals.
- The population dynamics of Tipula paludosa leatherjackets are influenced by soil moisture and temperature in the preceding autumn.
- He dismissed the leatherjacket theory, positing that the turf necrosis was due to fungal infection compounded by drought stress.
Learning
Memory Aids
Mnemonic
Think of a tiny, tough 'jacket' made of leather (its tough skin) that lives in the soil and ruins your lawn.
Conceptual Metaphor
PEST AS CLOTHING: The grub is named for its tough, leathery exterior 'jacket'.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not translate as 'кожаная куртка' (leather jacket clothing) in biological/gardening contexts. The correct translation for the pest is 'личинка долгоножки'.
Common Mistakes
- Confusing it with the clothing item 'leather jacket'.
- Using it as a general term for any grub or caterpillar.
- Capitalising it as a proper noun.
Practice
Quiz
In which context is the term 'leatherjacket' most commonly used in British English?
FAQ
Frequently Asked Questions
It is the larval (grub) stage of an insect, specifically the crane fly. The adult is a flying insect.
Yes, leatherjacket is a common name for several species of fish, notably in Australia, known for their tough skin which is usually removed before eating. The flesh is considered good.
Methods include encouraging natural predators (birds, hedgehogs), using biological nematodes that infect the grubs, or applying targeted insecticides. Aeration and reducing thatch can also help.
The name refers to the larva's tough, leathery, grey-brown exoskeleton, which resembles a crude jacket or casing.