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In some species, the larvae are predatory themselves; the wasp eggs are deposited in clusters of eggs laid by other insects, and these are then consumed by the developing wasp larvae. [10] The largest social wasp is the Asian giant hornet, at up to 5 centimetres (2.0 in) in length. [11]
The wasps, bees, and ants together make up the suborder (and clade) Apocrita, characterized by a constriction between the first and second abdominal segments called a wasp-waist , also involving the fusion of the first abdominal segment to the thorax. Also, the larvae of all Apocrita lack legs, prolegs, or ocelli.
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]
Research based on four nuclear genes (elongation factor-1α F2 copy, long-wavelength rhodopsin, wingless and the D2–D3 regions of 28S ribosomal RNA—2700 bp in total) suggests the historical view of family relationships need to be changed, with Rhopalosomatidae as a sister group of the Vespidae and the clade Rhopalosomatidae + Vespidae as sister to all other classical vespoids and apoids.
The reproduction of gall wasps is usually partly parthenogenesis, in which a male is completely unnecessary, and partly two-sex propagation. [2] Most species have alternating generations, with one two-sex generation and one parthenogenic generation annually, whereas some species produce very few males and reproduce only by parthenogenesis, [2] possibly because of infection of the females ...
Of the wasp's 7,400 neurons, 4,600 are located in the brain. A small insect from other families often deals with the issue of having a large brain in relation to its head size by shifting its brain into its thorax and even abdomen. However, wasps cannot, as to keep their heads flexible, the head's connection to the thorax is relatively limited. [2]
The winners of the 2024 European Wildlife Photographer of the Year awards have been announced. Launched in 2001, this competition is one of the most prestigious in modern nature photography.
Vespula pensylvanica, the western yellowjacket, is a Nearctic species of wasp in the genus Vespula. [1] [2] It is native to regions of North America, largely in areas with northern temperate climates.