[IB Biology at GHS: Simple Animal Phyla]
Examples of Insects

Note on the photos below the exoskeletons, segmentation of the bodies (more easily seen on the dragonfly) and the jointed legs.

Dragonfly

Honey Bee on wild daisy

Grasshopper

Beetle
The photo above shows a painted lady, a type of butterfly found in the Pacific Northwest.

Larva or caterpillar stage of an anise swallowtail. Note the worm-like, segmented body.
Paul Slichter