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. Vespines, such as V. crabro, are known for making intricate paper-like nests out of surrounding plant materials and other fibers. Unlike most other vespines, reproductive suppression involves worker policing instead of queen pheromone control, as was previously thought.This species stings in response to being stepped on or grabbed, but generally avoids conflict. It is also defensive of its nest and can be aggressive around food sources. Care should be taken when they are found in these circumstances, as they may sting without warning.
圖片編號:
283658824
拍攝者:
Elrondperedhil
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授權類型 | 尺寸 | 像素 | 格式 | 點數 | |
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標準授權 | XS | 480 x 128 | JPG | 13 | |
標準授權 | S | 800 x 213 | JPG | 15 | |
標準授權 | M | 3355 x 894 | JPG | 18 | |
標準授權 | L | 5178 x 1380 | JPG | 20 | |
標準授權 | XL | 5478 x 1460 | JPG | 22 | |
標準授權 | MAX | 6710 x 1788 | JPG | 23 | |
標準授權 | TIFF | 7323 x 1952 | TIF | 39 | |
進階授權 | WEL | 6710 x 1788 | JPG | 88 | |
進階授權 | PEL | 6710 x 1788 | JPG | 88 | |
進階授權 | UEL | 6710 x 1788 | JPG | 88 |
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M
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標準授權 | 480 x 128 px | JPG | 13 點 |
標準授權 | 800 x 213 px | JPG | 15 點 |
標準授權 | 3355 x 894 px | JPG | 18 點 |
標準授權 | 5178 x 1380 px | JPG | 20 點 |
標準授權 | 5478 x 1460 px | JPG | 22 點 |
標準授權 | 6710 x 1788 px | JPG | 23 點 |
標準授權 | 7323 x 1952 px | TIF | 39 點 |
進階授權 | 6710 x 1788 px | JPG | 88 點 |
進階授權 | 6710 x 1788 px | JPG | 88 點 |
進階授權 | 6710 x 1788 px | JPG | 88 點 |