I have been bitten by yellow jackets. It’s used for digestion (Nancy discussed bug spit awhile back), but it’s also used for building.

Love your posts and they show the complexity of trying to understand how nature works. To avoid their stings, leave the immediate area and don’t swat or squash wasps. A diagram showing where 2-heptanone is produced and excreted by the honeybee. “Antennal drumming, trophallaxis, and colony development in the social wasp Polistes fuscatus (Hymenoptera: Vespidae).” Ethology 114.12 (2008): 1201-1209. This leads to the spreading of the wasps and hence, increases the chances of someone getting stung. Probably the answer is no, yeah you read it right that wasps are no danger to humans. Wasps belong to order Hymenoptera (Transparent wings). Most of the research that’s been done on wasp spit has been done on the larvae of Polistes paper wasps. Wasps live in nests built from a papery substance comprised of wood …


Bees get a lot of tiny parasites, things like waxworms and Varroa mites, which are too small and tough to sting. So I’m going to pick a group I’m familiar with-the paper wasp genus Polistes-because it’s the stinging wasp that’s most commonly encountered by people.

I know of one case where hymenopteran venom might come from the head, but it isn’t saliva per se.

So it’s not really a great test of the hypothesis. The larvae of Polistes paper wasps produce a nutrient rich saliva that has a lot of sugars and amino acids.

For example, when a wasp stings a human approaching a nest, the small insect simultaneously emits a chemical that signals the rest of the colony to attack. However, even without a lodged stinger, wasp venom can … I’d really like to see followup literature which addresses the problems in the research. The majority of wasps use wood fibres to build their nests. Please log in using one of these methods to post your comment: You are commenting using your WordPress.com account. They analyzed the bitten parasites, and found that 2-heptanone was found inside the insects which were bitten by bees. We have no idea what it’s actually used for. It also keeps your enemy from brushing you off while you make them miserable. Horntail wasps are related to wasps but do not have the ability to sting or bite. Science can be a difficult, tricky process.

The vast majority of species are either incapable of actually stinging people, or just not encountered by people (other than entomologists) to where a sting is really an issue.

2-heptanone was absent from insects which had recovered from the bites, or which had never been bitten.

They didn’t sting me, they just landed there and hung out for an uncomfortably long couple of seconds. You have to save that for a honey badger…or even a bear! For this reason, the wasps focus on gathering sources of carbohydrates and sweet substances. Even when on the attack, the wasps sting with the aim of making their opponent passive. ( Log Out /  They are totally in love with their creatures -or plants.

Most sweat bees are solitary species that sometimes pester humans due to their attraction to perspiration, and solitary mud dauber wasps often build mud nests on the exterior walls of homes and buildings. The group most people think of when they talk about wasps, the Aculeates, are actually about 30% of the total wasp diversity.
I’m also going to be discussing honeybees, since this is the group of Hymenopterans which most frequently stings people. These burrowing pests include mining bees, sweat bees, sand wasps, digger wasps, and cicada killers. Their affinity to consumables is also the reason why we often find a wasp or two floating over our unattended soft drinks. lol.

So they hypothesized that bees inject 2-heptanone as venom while defending their nests from small invaders, and insects which have been injected with this chemical do become paralyzed for a very long time.


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