Pepsinae

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Pepsinae
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Pompilidae
Subfamily: Pepsinae
Tribes

The Pepsinae are a subfamily of the spider wasp family, Pompilidae, including the two genera of large tarantula hawks, as well as many genera of smaller species.[1]

Biology

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A female spider wasp generally captures and stings a spider to paralise it; this is for their larvae to feed on. However, the wasps of this subfamily display a range of nesting behaviours:

  • using preexisting cavities;
  • using the immobilised spider’s burrow;
  • digging a burrow in soil;
  • building nests of mud;
  • parasitoids; and
  • kleptoparasites.[2]

Taxonomy

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Pepsinae can be defined by:

  • sternite 2 with a distinct transverse groove;
  • mesofemur and metafemur without subapical spine-like setae set in grooves or pits;
  • the metatibia with apical spine-like setae of uniform length, the setae not splayed; and
  • vein Cu1 of fore wing is simple at its base, without any definite downward deflection, i.e. the second discal cell (2D) is without a ‘pocket’.[2][3]

The subfamily Pepsinae comprises 84 genera.[4] These include 16 genera of Ageniellini,[5][6] 7 genera of Deuterageniini,[7] 48 genera of Pepsini,[8][9][10] 11 genera of Priocnemini,[11][12] 1 genus of Psoropempulini,[13] and 1 genus unplaced to tribe.[14]

Auplopus carbonarius with prey
Orange spider wasp Cryptocheilus bicolor (or Heterodontonyx bicolor)

Incertae sedis

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References

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  2. ^ a b Waichert, C., Rodriguez, J., Wasbauer, M. S., Von Dohlen, C. D., & Pitts, J. P. (2015). Molecular phylogeny and systematics of spider wasps (Hymenoptera: Pompilidae): redefining subfamily boundaries and the origin of the family. Zoological Journal of the Linnean Society, 175(2), 271-287.
  3. ^ Brothers, D. J. & Finnamore. (1993). Superfamily Vespoidea. In Goulet, H. & Huber, J. T. (Eds.). (1993). Hymenoptera of the world: an identification guide to families. 161-278. https://www.researchgate.net/publication/259227143
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