Search results
Results From The WOW.Com Content Network
The European hornet (Vespa crabro) is the largest eusocial wasp native to Europe. It is also the only true hornet (genus Vespa ) found in North America , having been introduced to the United States and Canada from Europe as early as 1840.
A European hornet stinger under an optical microscope. Hornets have stingers used to kill prey and defend nests. Hornet stings are more painful to humans than typical wasp stings because hornet venom contains a large amount (5%) of acetylcholine. [8] [9] Individual hornets can sting repeatedly.
The Schmidt sting pain index is a pain scale rating the relative pain caused by different hymenopteran stings. It is mainly the work of Justin O. Schmidt, who was an entomologist at the Carl Hayden Bee Research Center in Arizona. Schmidt published a number of works on the subject and claimed to have been stung by the majority of stinging ...
The southern giant hornet is one of the largest hornets, the researchers noted in the paper. They are part of the genus Vespa, which are mostly endemic to Asia, the researchers said.
The European hornet is a wasp-waisted Apocritan with a sting, not a Symphytan. Many species of sawfly have retained their ancestral attributes throughout time, specifically their plant-eating habits, wing veins and the unmodified abdomen, where the first two segments appear like the succeeding segments. [ 30 ]
I added the European Hornet as 2.5. This is NOT, I repeat not a referenced number, but my interpretation from the colour code chart in . From what I understand, a European hornet sting is more painful than a yellowjacket, so I added a 0.5 on to distinguish this. This must be redone with a proper reference.
It is the only known predator of the Asian hornet. [16] It spends large amounts of time on the forest floor excavating wasp nests. It is equipped with long toes and claws adapted to raking and digging, and scale-like feathering on its head, thought to be a defence against the stings of its prey. [17]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!