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Brief Summary

provided by Catalog of Hymenoptera in America North of Mexico
Members of this family for which host associations are known are mainly parasites of Diptera, and especially of the Cecidomyiidae, but some are important parasites of mealybugs and whiteflies. Occasional species have been reared from wasp larvae of the subfamily Crabroninae, from hymenopterous galls, and from eggs of certain Coleoptera.
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Catalog of Hymenoptera in America North of Mexico. 1979. Prepared cooperatively by specialists on the various groups of Hymenoptera under the direction of Karl V. Krombein and Paul D. Hurd, Jr., Smithsonian Institution, and David R. Smith and B. D. Burks, Systematic Entomology Laboratory, Insect Identification and Beneficial Insect Introduction Institute. Science and Education Administration, United States Department of Agriculture.

Platygastridae

provided by wikipedia EN

The hymenopteran family Platygastridae (sometimes incorrectly spelled Platygasteridae) is a large group (over 4000 species) of exclusively parasitoid wasps, mostly very small (1–2 mm), black, and shining, with elbowed antennae that have an eight-segmented flagellum. The wings sometimes lack venation, though they may have slight fringes of setae.

Platygaster sp. in copula

The traditional subfamilies are the Platygastrinae and the Sceliotrachelinae. The former subfamily includes some 40 genera, all of which are koinobionts on cecidomyiid flies; the wasp oviposits in the host's egg or early instar larva, and the wasp larva completes development when the host reaches the prepupal or pupal stage. The latter subfamily is much smaller, including some 20 genera, and they typically have the rudiments of a vein in the forewings. They are generally idiobionts, attacking the eggs of either beetles or Hemiptera.

The former family Scelionidae is now considered to be another subfamily of Platygastridae, along with the subfamilies Teleasinae and Telenominae. The oldest known record of the group is an indeterminate specimen from the Burmese amber.[1]

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    Platygaster sp. female

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    Platygaster sp. on goldenrod (Solidago)

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    Trissolcus sp. on Chinavia eggs

References

  1. ^ Talamas, Elijah J.; Johnson, Norman F.; Shih, Chungkun; Ren, Dong (2019-11-18). "Proterosceliopsidae: A new family of Platygastroidea from Cretaceous amber". Journal of Hymenoptera Research. 73: 3–38. doi:10.3897/jhr.73.32256. ISSN 1314-2607.
  • Peter N. Buhl and David G. Notton, 2009 A revised catalogue of the Platygastridae of the British Isles Journal of Natural History Vol. 43, Nos. 27-28,1651-1703 [1]

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Platygastridae: Brief Summary

provided by wikipedia EN

The hymenopteran family Platygastridae (sometimes incorrectly spelled Platygasteridae) is a large group (over 4000 species) of exclusively parasitoid wasps, mostly very small (1–2 mm), black, and shining, with elbowed antennae that have an eight-segmented flagellum. The wings sometimes lack venation, though they may have slight fringes of setae.

Platygaster sp. in copula

The traditional subfamilies are the Platygastrinae and the Sceliotrachelinae. The former subfamily includes some 40 genera, all of which are koinobionts on cecidomyiid flies; the wasp oviposits in the host's egg or early instar larva, and the wasp larva completes development when the host reaches the prepupal or pupal stage. The latter subfamily is much smaller, including some 20 genera, and they typically have the rudiments of a vein in the forewings. They are generally idiobionts, attacking the eggs of either beetles or Hemiptera.

The former family Scelionidae is now considered to be another subfamily of Platygastridae, along with the subfamilies Teleasinae and Telenominae. The oldest known record of the group is an indeterminate specimen from the Burmese amber.

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Platygaster sp. female

"

Platygaster sp. on goldenrod (Solidago)

"

Trissolcus sp. on Chinavia eggs

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Scelionidae

provided by wikipedia EN

Scelioninae is a subfamily of wasps in the family Platygastridae. It is a very large cosmopolitan group (over 3000 described species in some 160 genera) of exclusively parasitoid wasps, mostly small (0.5–10 mm), often black, often highly sculptured, with (typically) elbowed antennae that have a 9- or 10-segmented flagellum. It was formerly considered to be a family Scelionidae but has been reclassified as a subfamily of the Platygastridae.[1]

The subfamilies Scelioninae, Teleasinae, and Telenominae were formerly in the family Scelionidae, but Scelionidae was combined with the family Platygastridae because of genetic similarities. The name Platygastridae was retained for the resulting family because of seniority.[2]

Biology

They are generally idiobionts, attacking the eggs of many different types of insects, spiders, butterflies (the hackberry emperor, for example)[3] and many are important in biological control. Several genera are wingless, and a few attack aquatic insect eggs underwater.

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References

  1. ^ Aguiar et al. 2013
  2. ^ Sharkey, M.J. (2007). Phylogeny and Classification of Hymenoptera. Zootaxa. 309. pp. 13–48.
  3. ^ Friedlander, Timothy P. (1984). "General Notes: INSECT PARASITES AND PREDATORS OF HACKBERRY BUTTERFLIES (NYMPHALIDAE: ASTEROCAMPA)". Journal of the Lepidopterists' Society. 38: 60–61.
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Scelionidae: Brief Summary

provided by wikipedia EN

Scelioninae is a subfamily of wasps in the family Platygastridae. It is a very large cosmopolitan group (over 3000 described species in some 160 genera) of exclusively parasitoid wasps, mostly small (0.5–10 mm), often black, often highly sculptured, with (typically) elbowed antennae that have a 9- or 10-segmented flagellum. It was formerly considered to be a family Scelionidae but has been reclassified as a subfamily of the Platygastridae.

The subfamilies Scelioninae, Teleasinae, and Telenominae were formerly in the family Scelionidae, but Scelionidae was combined with the family Platygastridae because of genetic similarities. The name Platygastridae was retained for the resulting family because of seniority.

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