Caddisfly. Coloured scanning electron micrograph of a caddisfly (order Trichoptera) viewed from above, showing its compound eyes (black), antennae (top left and right) and wings (wing). Caddisflies are moth-like insects that have hairy wings rather than the scaled wings of moths and butterflies. The larvae are voracious aquatic predators that build protective cases out of silk and plant debris. Magnification: x33, when printed 10 cm wide.