Heteroecus pacificus

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Heteroecus pacificus
Heteroecus pacificus adult.jpg
Beaked Spindle Gall.jpg
Adult (top) and beaked spindle galls (bottom)
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Cynipidae
Genus: Heteroecus
Species:
H. pacificus
Binomial name
Heteroecus pacificus
(Ashmead, 1896)

Heteroecus pacificus, the beaked spindle gall wasp, is a species of gall wasp in the family Cynipidae. [1] [2] [3] [4] It occurs in western North America. [3] The galls appear on canyon live oak (Quercus chrysolepis) and huckleberry oak (Quercus vaccinifolia). [4]

Heteroecus pacificus has two generations per year: one of sexually reproducing males and females, and the other consisting solely of parthenogenetic females. [4] [5] Parthenogenetic females measure 2.8–3.7 mm (0.11–0.15 in) in length and sexual ones 2.2–2.8 mm (0.087–0.110 in). [5]

References

  1. "Heteroecus pacificus (Ashmead, 1896)". Integrated Taxonomic Information System . Retrieved 25 December 2025.
  2. "Heteroecus pacificus (Ashmead, 1896)". Catalogue of Life . Species 2000: Leiden, the Netherlands. Retrieved 25 December 2025.
  3. 1 2 "Heteroecus pacificus (Ashmead, 1896)". Global Biodiversity Information Facility . Retrieved 25 December 2025.
  4. 1 2 3 "Heteroecus pacificus Species Information". BugGuide.net. Retrieved 25 December 2025.
  5. 1 2 Lyon, Robert J. (1963). "The alternate generation of Heteroecus pacificus (Ashmead)". Entomological Society of Washington. 65: 250–254.