Anagrus species (Mymaridae), among the smallest insects known, are endoparasitoids of eggs of Odonata and Hemiptera. The genus is worldwide and about 60 species is now recognized.
Taxonomy and Adult Morphology
The metasoma of Anagrus is not constricted basally, so it appears broadly sessile, the hypochaeta in front of the marginal vein is basal to the first macrochaeta, the tarsi are 4-segmented, the posterior scutellum is longitudinally divided, and the foretibia has a comb-like spur. Adult males and females are similar, differing mainly in their antennae, with nine segments and clubbed in females (Fig. 46) and 13 segments and filiform in males. Body color is often darker in males. The genitalia, both in males (the aedeagus) and in females (the ovipositor), have features of taxonomic importance.
Adult female of Anagrus sp.
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Chiappini E, Lin NQ (1998) Anagrus (Hymenoptera: Mymaridae) of China, with descriptions of nine new species. Ann Entomol Soc Am 91:549–571
Chiappini E, Triapitsyn SV, Donev A (1996) Key to the Holarctic species of Anagrus Haliday (Hymenoptera: Mymaridae) with a review of the Nearctic and Palaearctic (other than European) species and descriptions of new taxa. J Nat Hist 30:551–595
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Triapitsyn SV (1998) Anagrus (Hymenoptera: Mymaridae) egg parasitoids of Erythroneura spp. and other leafhoppers (Hemiptera: Cicadellidae) in North America vineyards and orchards: a taxonomic review. Trans Am Entomol Soc 124:77–112
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Chiappini, E. (2008). Anagrus Fairyflies (Hymenoptera: Mymaridae). In: Capinera, J.L. (eds) Encyclopedia of Entomology. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6359-6_10201
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DOI: https://doi.org/10.1007/978-1-4020-6359-6_10201
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