Looper caterpillars – family Geometridae

This is a large family of caterpillars with over 300 species. Nearly all of them have several prolegs missing and walk by moving one end of their body at a time so forming a loop – hence they are often referred to as ‘loopers’. The leg count is often a very good way to identify species as Geometrids.

Most ‘loopers’ are superbly camouflaged, their cryptic shape and colour making them very difficult to see amongst their food plant, to the extent that it isn’t until some move that you are even sure they are indeed caterpillars!

Finding a caterpillar in the moth picture gallery

If not found in this gallery try the other moth caterpillar galleries below.
Moth caterpillars page 1 – Some of the largest and hairiest caterpillars – Hepialidae to Thyatiridae
Moth caterpillars page 2 (this page)
Moth caterpillars page 3 – The large Hawkmoth caterpillars – Sphingidae
Moth caterpillars page 4 – Some of the hairiest caterpillars – Notodontidae to Arctiidae
Moth caterpillars page 5 – Large group with both brown and brightly coloured, smooth skin larvae and other brightly coloured hairy caterpillars – Noctuidae

Other insect caterpillar/larvae galleries –
Butterfly caterpillars
Sawfly caterpillars/larvae
other insect larvae.
North American caterpillars

Some species are difficult to identify from photographs for a number of reasons – see help with caterpillar identification. You never know it may be one that’s not on the site and with your permission we would welcome adding a photo of it to the site and include it in a latest sightings report.

PLEASE NOTE - we have closed comments due to excess spam but are still identifying many caterpillar queries sent by email to Steve - wildlifeinsight@gmail.com - see our page on help with caterpillar identification for more information.