4 households insects that have helpful purposes!

Monday, 13 July 2026 20:34

By Daisy Sheena

Not many people are aware of this. Each year in UK households, millions of insects thrive in our homes. However, what insects have unique but useful purposes?

Weirdly-wonderful woodlice

The common woodlice is also nicknamed slaters and pillbugs. Uniquely, these small critters have a range of special purposes. From woodlice flourishing garden life, to the forest, there are around 30 species in Britain. Majoritively founded in dark damp locations, many thrive in covered areas. Woodlice are essential to the ecosystem. Not only do they increase composition speed, the critters also help to guard groundwater. Hundreds are estimated to be in UK gardens, do you wonder how many are in yours?

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Marvelling moths

An estimated 2,500 species of moths inhabit Britain. Even though since the 20th century, their population has dwindled drastically. This is attributed to climate change and habitat loss. 12% of people find moths frightening, however they are also crucial to nature. At nighttime, the flying insects are pollinators, which helps our gardens thrive. Sinisterly alongside this, they act as a vital food source for birds. Also, did you know that less than 1% eat clothes? So, next time you spot a moth, think of their greater purpose to our ecosystems.

Funky fruit flies

Known as the vinegar fly or banana fly, fruit flies are very common in the UK. Depending on the temperature, the species increases in higher temperatures. Did you know female flies have laid up to half a thousand eggs in their lifetime? This emphasises their high population, however what are fruit flies' more important purpose? Weirdly like woodlice, they help to compose food. Oddly, fruit flies are also another part of the food chain for creatures, like spiders and frogs. Medically, they are essential. Scientists use them to study: genes, genetics and diseases.

Scary cellar spiders

Titled as daddy long-legs, many are significantly afraid about the cellar spiders. 21% suffer from extreme Arachnophobia phobia of spiders) in the UK. Fun fact, they were first recorded in the UK in 1864! They are now founded up to Shetland and across Europe. However, what are the positives from these arachnids? Founded indoors, millions are residents inside our homes. Beneficially, cellar spiders exterminate harmful insects. From killing species like mosquitoes, this creates a cleaner; healthier environment. Additionally, they are a natural pest control.

Overall, each and every insect in our homes has a unique purpose (even if it's hidden). Next time you spot a harmless insect in your home, think twice before harming it.