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Chalcidoid wasps are small wasps (most within the range 0.5–5 mm). However the group does include the smallest known insect (Dicopomorpha echmepterygis males have a body length of 0.14–0.24 mm); the largest chalcidoids include Leucospis gigas with a body length of up to 21 mm [2] and Doddifoenus wallacei with a body length of up to 19.6 mm. [3]
The Ichneumonidae, also known as ichneumon wasps, ichneumonid wasps, ichneumonids, or Darwin wasps, are a family of parasitoid wasps of the insect order Hymenoptera. They are one of the most diverse groups within the Hymenoptera with roughly 25,000 species described as of 2016 [update] . [ 2 ]
Fairyflies are very tiny insects, like most chalcidoid wasps, mostly ranging from 0.5 to 1.0 mm (0.020 to 0.039 in) long. They include the world's smallest known insect , with a body length of only 0.139 mm (0.0055 in), and the smallest known flying insect , only 0.15 mm (0.0059 in) long.
Small cavities in the soil or sometime above ground in dark cavities. Commonly uses small rodent nests, may use bird cavity nests. Small umbrella-shaped papery combs hanging horizontally in protected spaces such as attics, eaves or soil cavities. Large paper nest, upside down pear shaped, hanging from branches and eaves; also barns and attics.
The parasitoid wasps include some very large groups, some estimates giving the Chalcidoidea as many as 500,000 species, the Ichneumonidae 100,000 species, and the Braconidae up to 50,000 species. Host insects have evolved a range of defences against parasitoid wasps, including hiding, wriggling, and camouflage markings.
Cotesia glomerata, the white butterfly parasite, is a small parasitoid wasp belonging to family Braconidae. It was described by Carl Linnaeus in his 1758 publication 10th edition of Systema Naturae .
Megaphragma mymaripenne is a very small wasp.At 200 μm (1 ⁄ 5 mm; 1 ⁄ 125 inch) in length, it is the third-smallest extant insect, [1] comparable in size to some single-celled organisms.
The Mymarommatidae, sometimes referred to as false fairy wasps, are a very small family of microscopic parasitic wasps. Only about half of the known species are living taxa (the others are fossils), but they are found worldwide.