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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. Unlike honey bees , hornets do not die after stinging because their stingers are very finely barbed (only visible under high magnification) and can easily be ...
The Asian giant hornet (Vespa mandarinia) or northern giant hornet, [2] [3] including the color form referred to as the Japanese giant hornet, [4] [5] is the world's largest hornet. It is native to temperate and tropical East Asia , South Asia , Mainland Southeast Asia , and parts of the East Europe, Russian Far East .
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. [ 1][ 2] Vespines, such as V. crabro, are known for making intricate paper-like nests out of surrounding ...
Today, the genus has more than 1,000 species that appear throughout the world, with around 400 of those referred to as “spiny solanum” for their prickles, according to the University of Utah.
Lepeletier, 1836. Detail of facial anatomy, showing hairy, orange mandibles, clypeus and vertex. The Asian hornet ( Vespa velutina ), also known as the yellow-legged hornet or Asian predatory wasp, is a species of hornet indigenous to Southeast Asia . It is of concern as an invasive species in some other countries, including most of Europe.
Less commonly (around 10% of Hymenoptera sting reactions), a large local reaction occurs when the area of swelling is greater than 10 centimetres (4 in). Rarely (1-3% of Hymenoptera sting reactions), systemic reactions can affect multiple organs and pose a medical emergency, as in the case of anaphylactic shock. [2] [3]
A board foot is a United States and Canadian unit of approximate volume, used for lumber. It is equivalent to 1 inch × 1 foot × 1 foot (144 cu in or 2,360 cm 3). It is also found in the unit of density pounds per board foot. In Australia and New Zealand the terms super foot or superficial foot were formerly used for this unit. The exact ...
The adult hornet has two pairs of wings and a body measuring between 25 and 35 mm (0.98 and 1.38 in) long. [2] Drones and workers are smaller in size than the queen. V. orientalis is a reddish-brown color and has distinctive thick yellow bands on the abdomen and yellow patches on the head between the eyes.