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Hymenoptera is a large order of insects, comprising the sawflies, wasps, bees, and ants.Over 150,000 living species of Hymenoptera have been described, [2] [3] in addition to over 2,000 extinct ones. [4]
Palaeovespa florissantia, late Eocene. The Vespidae are a large (nearly 5000 species), diverse, cosmopolitan family of wasps, including nearly all the known eusocial wasps (such as Polistes fuscatus, Vespa orientalis, and Vespula germanica) and many solitary wasps. [1]
Ichneumonid wasps, with very few exceptions, attack the immature stages of holometabolous insects and spiders, eventually killing their hosts. [4] They play an important role as regulators of insect populations, both in natural and semi-natural systems, making them promising agents for biological control. [5] Male ichneumonid wasp
Climaciella brunnea, known sometimes by the common names wasp mantidfly, western mantidfly, and brown mantidfly, is a predatory neuropteran insect in the family Mantispidae. Description [ edit ]
Often multiple wasps in different life stages occupy the same gall. The induced galls help establish complex insect communities, promoting the diversification in niche differentiation. Furthermore, the adaptive value of these galls could be attributed their ecological benefits such as nutrition, provision of microenvironment, and enemy avoidance.
Chrysis ignita and its family of chrysidid wasps have evolved effective defenses for their risky life cycle. While the life of a cuckoo wasp may seem easy, it must drop off its young to be raised by a host wasp species. The ruby-tailed wasp has to infiltrate a nest full of defensive mother wasps, often armed with powerful stingers and jaws.
Euderus set, the crypt-keeper wasp, is a tiny chalcid wasp from the family Eulophidae from the United States, described in 2017 as a parasitoid of the gall wasp Bassettia pallida. The description of its life cycle has attracted widespread publicity.
Most hosts are holometabolous insect larvae, but there are many exceptions. In general, ichneumonoids are host specific, and only attack one or a few closely related host species. Many species use polydnaviruses to suppress the immune systems of their host insects. Due to the wide variety in hosts and lifestyles, see subfamily pages for more ...