Dendroctonus brevicomis

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Dendroctonus brevicomis
Lifestages western pine beetle 1934 Dendroctonus brevicomis.jpg
Life stages of D. brevicomis
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Infraorder: Cucujiformia
Family: Curculionidae
Genus: Dendroctonus
Species:
D. brevicomis
Binomial name
Dendroctonus brevicomis
LeConte, 1876

Dendroctonus brevicomis, the western pine beetle, is a species of crenulate bark beetle in the family Curculionidae. It is found in North America [1] [2] [3] and parts of Mexico. [4] It is known as a destructive pest of ponderosa and Coulter pine trees. [5] When drought makes these pines more susceptible to infestations by D. brevicomis, there is an increased risk of forest fires due to dead trees. [6]

The beetle may cause mortality of 60 to 90 percent of host trees in some landscapes during an outbreak. One of the more recent notable outbreaks occurred in the central and southern Sierra Nevada Range in California from 2014 to 2017, causing the death of millions of ponderosa pines. [7]

Adult D. brevicomis are brown or black beetles 3–5 mm in length. Females carve lengthy egg galleries in the wood, damaging the trees. [5]

Examples of D. brevicomis egg galleries in ponderosa pine 1934. Three relative degrees of Dendroctonus brevicomis attack; heavy, medium, and light on ponderosa pine. (39817485915).jpg
Examples of D. brevicomis egg galleries in ponderosa pine

References

  1. "Dendroctonus brevicomis Report". Integrated Taxonomic Information System. Retrieved 2019-09-23.
  2. "Dendroctonus brevicomis". GBIF. Retrieved 2019-09-23.
  3. Valerio-Mendoza, O; Armendáriz-Toledano, F; Cuéllar-Rodríguez, G; Negrón, José F; Zúñiga, G (2017-09-01). "The Current Status of the Distribution Range of the Western Pine Beetle, Dendroctonus brevicomis (Curculionidae: Scolytinae) in Northern Mexico". Journal of Insect Science. 17 (5). doi:10.1093/jisesa/iex070. ISSN   1536-2442. PMC   5597856 . PMID   28922899.
  4. 1 2 Will, Kip; Gross, Joyce; Rubinoff, Daniel; Powell, Jerry A. (2020). Field Guide to California Insects. Oakland, California: University of California Press. p. 265. ISBN   9780520288744.
  5. "Western Pine Beetle Kindles Fire Concerns in California". BioCycle. 44 (4): 53. April 1, 2003.
  6. https://www.fs.usda.gov/foresthealth/docs/fidls/FIDL-01-WesternPineBeetle.pdf [ bare URL PDF ]

Further reading