Seasons: January

The water stick insect looks just like a mantis. An underwater predator, it uses its front legs to catch its prey. Its tail acts as a kind of 'snorkel', so it can breathe in the water. Look for it in ponds and lakes.

The water scorpion is not a true scorpion, but it certainly looks like one! An underwater predator, it uses its front pincer-like legs to catch its prey. Its tail actually acts as a kind of 'snorkel', rather than a sting, so it can breathe in the water.

Found in ponds and marshes, the fragile look of the Common water-measurer belies its fierce nature. A predator of small insects, it uses the vibrations of the water's surface to locate its prey.

Despite popular belief, and its name (from the Old English for 'ear beetle'), the Common earwig will not crawl into your ear while you sleep - it much prefers a nice log or stone pile! It feeds on organic matter, recycling important nutrients.

As the name suggests, the Common medium stonefly is found in gravelly upland rivers and streams, often on bankside stones and plants. There are 34 species of Stonefly in the UK, which are hard to tell apart.

Also known as the 'green drake mayfly', the common mayfly can be found around unpolluted wetlands, such as lakes and rivers. It has transparent, lacy wings and three long 'tails'.

The silverfish is so-named for its fish-like way of moving and its silvery scales. It can be found in the damp corners of the house, such as the kitchen or bathroom. Infestations can cause serious damage.

There are several species of spider that live in our wetlands, but the water spider is the only one that spends its life under the water. In its pond habitats, it looks silvery because of the air bubbles it traps in its hairs.

The giant house spider is one of our fastest invertebrates, running up to half a metre per second. This large, brown spider spins sheet-like cobwebs and pops up in the dark corners of houses, particularly in autumn.

The Common harvestman is familiar to us as the large, spindly spider-like creature that frequents gardens and houses. It predates on smaller invertebrates which it catches using hooks on the ends of its legs.