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July 27, 2026Short & citedBlog
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Field Notes • Insect

Butterfly

A butterfly is a winged insect in the order Lepidoptera, usually active during the day and known for its scaled wings and complete metamorphosis.

Updated July 27, 20261 min readCited sources

A butterfly is a day-flying insect in the order Lepidoptera, known for its scaled wings and complete metamorphosis. These insects are found nearly worldwide and play key roles as pollinators and in food webs.

What it is

Butterflies belong to the superfamily Papilionoidea within Lepidoptera. They have scaled wings, club-tipped antennae, and are typically active during the day. About 17,500 species exist globally, with the highest diversity in tropical regions.

Life cycle and key traits

Butterflies undergo complete metamorphosis through four stages: egg, larva (caterpillar), pupa (chrysalis), and adult. Larvae usually feed on specific host plants, while adults often drink nectar. Their wing colours come from pigments or structural patterns.

Why it matters

Butterflies are important pollinators and serve as both prey and consumers in ecosystems. In Canada, they are common in gardens and parks, making them a focus for biodiversity monitoring and native plant conservation.

In short

  • Butterflies are day-flying insects with scaled wings and club-tipped antennae.
  • They have four life stages: egg, larva, pupa, adult.
  • About 17,500 species exist worldwide.
  • They are key pollinators and part of food webs.
Canadian angle

Butterflies are found across Canada, and Canadian readers often encounter them in gardens, parks, and conservation areas; they are also a common subject in biodiversity and pollinator discussions. For Canadian audiences, butterflies are relevant to native plant habitat, seasonal wildlife observation, and insect monitoring.

Quick questions

What is a butterfly?
A butterfly is a day-flying lepidopteran insect with scaled wings, usually placed in the superfamily Papilionoidea.
How many stages are in a butterfly’s life cycle?
Four: egg, larva, pupa, and adult.
Why are butterflies important?
They contribute to pollination and are part of many food webs, making them ecologically significant.

Sources

  1. Encyclopaedia Britannicahttps://www.britannica.com/animal/butterfly-insect
    Supports: Definition, classification, life cycle, distribution, and ecological importance of butterflies.
  2. Smithsonian Institutionhttps://www.si.edu/spotlight/buginfo/butterfly
    Supports: Estimated number of species, distinctive characteristics, and classification information.
  3. Wikipediahttps://www.wikipedia.org/wiki/Butterfly
    Supports: General background on anatomy, metamorphosis, colouration, and fossil history; used cautiously as a secondary reference.
  4. Butterfly Atlashttps://butterfly-atlas.ru/en/entsiklopediya
    Supports: General educational overview of butterfly biology, life cycle, feeding, and differences from moths.
  5. Google Bookshttps://books.google.com/books/about/The_Illustrated_Encyclopedia_of_the_Butt.html?id=n7ZFAAAAYAAJ
    Supports: Reference to an illustrated encyclopedia covering evolution, history, structure, classification, and habitats.
  6. American Museum of Natural Historyhttps://shop.amnh.org/butterflies-mini-encyclopedia
    Supports: Butterflies as a natural history subject and their relation to Lepidoptera.