As a museum curator in entomology, I devoted part of my time to studying caddisflies – a small order of insects in which the immature stages live in fresh waters of all kinds. To see caddis larvae at ...

Nuclei are marked in blue. The head and legs of a caddisfly larva is seen in this image by Fabrice Parais, which won ninth prize. The caddisfly comes from a European and North American genus of ...

Data from caddisfly larvae, mayfly larvae and stonefly larvae provide key biological indicators of river health. Dr Liz Mattison, the estate's education and environment officer, said: "You can't ...

Fly fishers call them sedges. Caddisflies spend most of their lives as aquatic larvae. They also pupate underwater. The caddisflies preserved at McGraths Flat died as larvae and pharate adults.