fishfly: meaning, definition, pronunciation and examples
RareInformal, Technical (Entomology)
Quick answer
What does “fishfly” mean?
A common name for certain medium-sized insects of the order Megaloptera, often resembling large, delicate flies with aquatic larvae.
Audio
Pronunciation
Definition
Meaning and Definition
A common name for certain medium-sized insects of the order Megaloptera, often resembling large, delicate flies with aquatic larvae.
Often used regionally and interchangeably with 'dobsonfly' (the adult male of which has large mandibles) or to refer specifically to smaller, related species like those in the genus Chauliodes, which are harmless insects attracted to lights near water.
Dialectal Variation
British vs American Usage
Differences
The term is predominantly North American. In British English, these insects are less common and are typically referred to with more specific entomological names (e.g., alderfly) or simply as 'aquatic insects'.
Connotations
In American English, it may evoke memories of summer evenings near lakes. In British English, the term is largely unknown and has no specific cultural connotation.
Frequency
Very low frequency in British English; low to medium frequency in specific regions of North America (e.g., Great Lakes area, Eastern US).
Grammar
How to Use “fishfly” in a Sentence
The [lake/river] is swarming with fishflies.Fishflies [hatched/emerged] last night.Vocabulary
Collocations
Examples
Examples of “fishfly” in a Sentence
verb
British English
- [Not applicable as verb]
American English
- [Not applicable as verb]
adverb
British English
- [Not applicable as adverb]
American English
- [Not applicable as adverb]
adjective
British English
- [Not commonly used as adjective]
American English
- The fishfly hatch was particularly heavy this year.
- We had a fishfly problem on the porch.
Usage
Meaning in Context
Business
Not used.
Academic
Used informally in ecology or entomology field studies; more precise taxonomic names are preferred in formal writing.
Everyday
Used by people living near freshwater bodies in North America to describe seasonal insect nuisances.
Technical
A common name for insects in the subfamily Chauliodinae or sometimes for adult Corydalidae. Technical contexts avoid it for precise Latin names.
Watch out
Common Mistakes When Using “fishfly”
- Confusing it with a 'firefly' (which glows) or a 'dragonfly' (which is predatory and not moth-like).
- Using 'fishfly' as a verb.
- Capitalising it as a proper noun.
FAQ
Frequently Asked Questions
No, adult fishflies do not bite, sting, or spread disease. They are harmless to humans, though their larval forms (hellgrammites) are aquatic predators.
In common usage, 'fishfly' often refers to the smaller species or the females of larger species, while 'dobsonfly' specifically refers to the large-mandibled adult male of the genus Corydalus. Scientifically, both are in the same family.
The name likely comes from their aquatic larval stage, which is a food source for fish, or from the fishbone-like pattern of veins in their wings.
Since they are short-lived adults (1-2 days), removal is rarely necessary. Turning off exterior lights at night during their brief emergence period is the most effective way to avoid attracting swarms.
A common name for certain medium-sized insects of the order Megaloptera, often resembling large, delicate flies with aquatic larvae.
Fishfly is usually informal, technical (entomology) in register.
Fishfly: in British English it is pronounced /ˈfɪʃflaɪ/, and in American English it is pronounced /ˈfɪʃˌflaɪ/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms for this specific term]”
Learning
Memory Aids
Mnemonic
Think: It's a fly that fish eat (its larvae are aquatic), or a fly that looks like it's made of fishbone (delicate, lacy wings).
Conceptual Metaphor
A fishfly is a SUMMER NUISANCE / A SIGN OF A HEALTHY AQUATIC ECOSYSTEM.
Practice
Quiz
What is a fishfly most accurately described as?