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Asian giant hornet

Asian giant hornet
Vespa mandarinia japonica2.jpg
Adults engaging in trophallaxis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Vespidae
Genus: Vespa
Species: V. mandarinia
Binomial name
Vespa mandarinia
Smith, 1852

The Asian giant hornet (Vespa mandarinia), including the subspecies Japanese giant hornet (V. m. japonica), colloquially known as the yak-killer hornet, is the world's largest hornet, native to temperate and tropical Eastern Asia. They prefer to live in low mountains and forests, while almost completely avoiding plains and high-altitude climates. V. mandarinia creates nests by digging, co-opting pre-existing tunnels dug by rodents, or occupying spaces near rotted pine roots. It feeds primarily on larger insects and honey from honey bee colonies. Some dimensions of this hornet are a body length of 45 mm (1.8 in), a wingspan around 75 mm (3.0 in), and stinger length of 6 mm (0.24 in) which injects a large amount of potent venom.

V. mandarinia is a species in the order Hymenoptera. Its genus, Vespa, comprises various hornets. The genus is defined by a nearly circular (when viewed from the front) or dorsoventrally depressed head. The upper half of its midcranial sulcus is developed and may appear above the clypeus. A patch of the palate is sclerotized and extends towards the lateral side. Due to this development, finding a weak and fragmented palate amongst this genus is rare. A median patch is occasionally present in species within the genus. The mandible is short and apically tridentate. Unlike Vespula, the first tooth does not distinctively project. The density of denticles on the maxilla vary. The collar process is thick, complex, and branched. Outside of this, the atrial wall has many intricacies and visible spines.


Along with seven other species, V. mandarinia is a part of the V. tropica group, defined by the single notch located on the apical margin of the seventh gastral sternum of the male. The new V. tropica species group comprises V. mandarinia and V. soror. The triangular shape of the apical margin of the clypeus of the female defines the species. Furthermore, the vertex of either species is enlarged and the shape of the apex of the aedeagus is distinct.


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Wikipedia

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