Daddy longlegs

Flitting about the house in summer, the gangly, brown daddy longlegs is familiar to many of us. They are a valuable food source for many birds.

Top facts

Stats

Body length: 1.6cm
Leg length: 5cm

Conservation status

Common.

When to see

June to September

About

The daddy longlegs is actually a large type of cranefly, of which there are 94 species in the UK. It is familiar to us in its adult form as the gangly insect that flits around our homes in summer. As a larva, it is a grey grub (also known as a 'leatherjacket') that lives underground, feeding on plants stems and roots. This habit makes it an unpopular species with gardeners as it can leave bare patches of lawn, and can also become an agricultural pest. The adults are on the wing during the late summer and are common in gardens and fields, often coming indoors. They rarely feed at this time, concentrating on mating and laying their eggs among the grass.

The urban myth that daddy longlegs are venomous is just that - a myth! It's true that they cannot bite, but the venomous rumour is likely to have been due to its confusion with certain species of spiders.

What to look for

The adult daddy longlegs is a brown, long-bodied insect, with translucent wings and very long legs, which easily fall off if handled. As a group, craneflies are unmistakeable, although telling the different species apart can be very difficult and often requires a microscope.

Where to find

Widespread.

Did you know?

If you look closely, the male has a square-ended body, but the female has a long, sharp-ended body - this stinger-like 'tail' is her ovipositor, which she uses to lay her eggs in the ground.