Sunday , April 11 2021

Scientists discovered the new parasitic bumblebee that created spider zombies


University of British Columbia

In Ecuador Amazon, a newly discovered wasp makes a regular social spider alone, a poor zombie.

Spider species Anelosimus eximius, Create detailed bucket-like networks with thousands of family members. He was considered a or social spider inin because he collaborated with other spiders of his common house to share his hunting, parenting and nutrition duties.

Until one is Zatypot to Parasitoid wasps leave an egg in the stomach.

When the nest egg hatches, a larva emerges, binds and feeds the spider web, absorbs the blood-like haemolymph to survive. At this point, the behavior of the spider changes and is enslaved by the larva, moving away from its common nest to form a cocoon-shaped network on its own.

The larva feeds on the spider until it dies, the relative safety of the cocoon-shaped web, built before turning its cocoon, and finally appearing as a beautiful, beautiful bumblebee.


Philippe Fernandez-Fournier noticed the behavior of the strange spider and began to investigate. Anelosimus eximius they usually don't leave their nests, but when they do a scan to do a completely new web, it aroused curiosity.

The research published in the Ecological Entomology of larvae Zatypot to Hornet species can manipulate host activities, control their behavior, and force them to build these unusual networks – and the most advanced behavioral manipulation to date.

Fernandez-Fournier and his research team suspect that the donkey is causing behavioral changes in the spider “by touching a scattered program of some ancestors ait that makes terrible noises like brain control in spiders. Or the wasps cause the spiders to starve, forcing them to seek food around the nest. When they go out, they start to bend the networks, unlike what they normally do.

In the animal kingdom, the zombification abilities of the wasps are nothing new. Other spider species such as Orb Weaver are also reluctant hosts for wasps and There are types of wasps that make it for cockroacheshowever, the newly discovered wasp seems to change the web structure and social behavior of this spider species much more intensively than previously seen.

How does the wasp larva do this? The answer to this question is not easy to find, but several theories have been put forward including the injection of hormones into the spider that disrupts the host's tendency to create "reduced nets during moistron". Other types of parasitoid bees introduced the hosts' brains with a chemical cocktail.

Researchers have also discovered that the size of the spider colony also plays a role in the amount of spiders receiving zombie treatment, while larger colonies have seen more spiders. This may seem to make a clear connection, but it is important to establish the dynamics between the parasite and the host, and undoubtedly, the arrogant, in the relationship, in the game can provide a greater understanding of the evolutionary mechanisms.


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