family Sialidae

9.8

A group of water insects called alderflies that live in streams

noun

Specialized

: familia Sialidae

The family Sialidae includes insects commonly referred to as alderflies.

Examples

Larvae of the family Sialidae are aquatic and are often found in slow-moving streams.
Many insects in the family Sialidae are found near water.
Entomologists have studied the geographic distribution of species within the family Sialidae.
The family Sialidae includes various species of alderflies.
Entomologists have studied the geographic distribution of species within the family Sialidae.
Larvae of the family Sialidae are aquatic and are often found in slow-moving streams.
The family Sialidae includes insects commonly referred to as alderflies.

Synonyms

Sialidae

vsfamily Sialidae

Specialized

9.9

A family of insects that live near water and have soft bodies and long antennae

is shorter and focuses on aquatic habitat rather than body features

Surface Forms

family Sialidae singular

families Sialidae plural

Morphology

family + Sialidae

The phrase is directly compositional: 'family' denotes a taxonomic grouping and 'Sialidae' is the name of that group (alderflies), so their combination yields 'the taxonomic family called Sialidae'. This naming pattern (family + taxon name) is standard across languages and scientific contexts, so a B1 learner who knows both constituents will understand the meaning.

Etymology

Family Sialidae is the scientific name for insects commonly called alderflies, because they are often found on or near 'alder' trees beside slow 'streams'. Picture small flies resting on alder leaves over the water — that image explains why the group name refers to these water-loving 'insects' today.