Of the 200 species of caddisfly in the UK, the Land caddis, or 'Terrestrial caddis', is the only one that lives on land throughout its whole lifecycle; the others all live in water during their larval stages. The Land caddis is most abundant in woodland leaf litter from December to March when it is in its larval stage. As with other caddisflies, Land caddis larvae construct a case made of sandy grains in which they develop. The adults emerge in late summer and early autumn to mate, and the eggs hatch a month or so later.
How to identify
The Land caddis is most identifiable as a larva encased in sandy grains. The adult females are flightless and much smaller than the males.
Did you know?
Land caddis females are thought to excrete pheromones to attract males. They emerge and mate in late summer and early autumn, living for just a couple of weeks.
How people can help
The Wildlife Trusts manage many woodland nature reserves sympathetically for the benefit of all kinds of wildlife. A mix of coppicing, scrub-cutting, ride maintenance and non-intervention all help woodland wildlife to thrive. You can help too: volunteer for your local Wildlife Trust and you could be involved in everything from traditional forest crafts to surveying for woodland plants.
