The Hymenoptera is the order that includes the social insects, such as wasps, bees, and ants. Body sizes range from minute to medium-sized. The mouthparts in most species are adapted for chewing. The first segments of the abdomen are reduced to small necks. The wings are membranous, with the hind pair being smaller than the front pair. Wings are reduced and absent in worker ants.

The oldest record of the Hymenoptera is from the Triassic. The Hymenoptera diversified remarkably in the Jurassic and Cretaceous. 78 families are represented in the fossil record with 22 of them extinct.




Vespa mandarinia japonica


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