Arthropods • Earth.com

Asian paper wasp

(Polistes chinensis)

galery

Description

Polistes chinensis is a polistine vespid wasp in the cosmopolitan genus Polistes, and is commonly known as the Asian, Chinese or Japanese paper wasp. It is found in East Asia, in particular China and Japan. The subspecies P. chinensis antennalis is an invasive species in New Zealand, having arrived in 1979. The wasps prey on invertebrates, especially caterpillars. In this species, queens destroy up to 70% of worker-laid eggs and are aided by workers in a process known as worker policing. The Asian paper wasp has a slender body about 13 to 25 mm (0.51 to 0.98 in) in length. Their bodies are reddish brown or black, with yellow rings and reddish areas on the abdomen. Their wings are reddish or amber brown, and they have long legs that hang down during flight. The general morphology of the spermatheca is similar in both reproductive and non- reproductive individuals. The spermathecal gland attaches to the central region of the spermatheca. The Asian paper wasp frequently constructs nests on man-made structures including houses and buildings. It will also build nests on trees or bushes, usually on branches, but sometimes on leaves as well. P. chinensis prefers to colonize urban habitats, but nests have also been recorded near forest clearings. They sometimes build their nests in dense shrubs, making them difficult to locate. Large populations usually develop in warm, lowland areas with open habitat such as shrublands, swamps and meadows. The paper wasp is native to East Asia. It has been recorded in China, Japan, Korea and Mongolia. The subspecies P. chinensis antennalis is invasive in New Zealand. It is widespread in the North Island and the northern South Island and competes with native species for food, It has since been recorded in Norfolk Island and New South Wales. At least two independent invasion events, linked to Kanto and Kyushu, Japan, have been proposed as sources of the New Zealand wasps. The Asian paper wasp was first recorded in New Zealand in 1979, in Kohimarama and the Whangaparaoa Peninsula. It remained confined to these areas of Auckland until 1984, when it began appearing in inner city areas and western suburbs. An overwintered female, who has been inseminated during the previous autumn, emerges during the spring and begins nest cell construction and egg laying. The first broods emerge in late spring or early summer and are entirely female. Males are produced from early summer onwards.

Taxonomic tree:

Domain:
Kingdom: Animalia
Phylum:
Class: Insecta
Order:Hymenoptera
Family:Eumenidae
Genus:Polistes
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