Insect classification is the system scientists use to organize and categorize insects based on their shared features and evolutionary history. This system helps us understand the immense diversity of insects, track their relationships to one another, and study their roles in ecosystems. Insects are classified within the phylum Arthropoda, class Insecta, and are further divided into orders, families, genera, and species.
  • Insects belong to the class Insecta within the phylum Arthropoda.
  • Classification is based on characteristics such as body structure, development, and genetics.
  • Major insect orders include Lepidoptera (butterflies and moths), Coleoptera (beetles), Diptera (flies), Hymenoptera (bees, wasps, ants), and Hemiptera (true bugs).
  • Each order shares distinctive traits like wing type, mouthparts, and life cycle patterns.
All insects are members of the class Insecta.
Mollusca is a phylum, not an insect order.
Insect classification is based on morphology, genetics, and development.

Major Insect Orders

Coleoptera, Diptera, and Hymenoptera are major insect orders.
Lepidoptera is the order for butterflies and moths.
Wing type, mouthparts, and metamorphosis are key classification features.