Heteroecus pacificus
| Heteroecus pacificus | |
|---|---|
 | |
 | |
| Adult (top) and beaked spindle galls (bottom) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | Pancrustacea |
| 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. It occurs in western North America. The galls appear on canyon live oak (Quercus chrysolepis) and huckleberry oak (Quercus vaccinifolia).
Heteroecus pacificus has two generations per year: one of sexually reproducing males and females, and the other consisting solely of parthenogenetic females. 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).
References
- ↑ "Heteroecus pacificus (Ashmead, 1896)". Integrated Taxonomic Information System. Retrieved 25 December 2025.
- ↑ "Heteroecus pacificus (Ashmead, 1896)". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 25 December 2025.
- 1 2 "Heteroecus pacificus (Ashmead, 1896)". Global Biodiversity Information Facility. Retrieved 25 December 2025.
- 1 2 3 "Heteroecus pacificus Species Information". BugGuide.net. Retrieved 25 December 2025.
- 1 2 Lyon, Robert J. (1963). "The alternate generation of Heteroecus pacificus (Ashmead)". Entomological Society of Washington. 65: 250–254.
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