Video: Hundreds of cockroach nymphs invade tree in southern Africa

The gregarious spotted cockroaches are able to organise themselves by secreting pheromones from their bodies

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If you hate cockroaches, probably best to look away now.

A fascinating video has been released that shows thousands of cockroach nymphs invading a tree in southern Africa.

The extraordinary video taken by traveller Thomas Wilson shows the tiny gregarious spotted cockroach nymphs living up to their name by crawling uniformly up the tree in Malawi, Africa. The insects, scientific name Cartoblatta pulchra, are recognisable by their distinctive white and orange dots across their backs and are often found in large swarms in southern Africa as far up as Malawi.

The cockroaches are able to organise themselves in such large aggregations through the secretion of pheromones from the insect’s bodies.

According to Dr Andrew Polaszek, research scientist at the Natural History Museum's Insect Division, the swarm could be in this formation after having freshly emerged from an egg mass.

The video which was posted on Wednesday has already proved popular online, with over 12,000 Vimeo users viewing it.