Species Dendroctonus valens - Red Turpentine Beetle

Classification · Numbers · Size · Range · Food · Life Cycle · Remarks · Internet References · Works Cited

unknown small beetle - Dendroctonus valens

Red Turpentine Beetle - Dendroctonus valens

Hylurgini, swept from conifers - Dendroctonus valens

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Hexapoda (Hexapods)

Class Insecta (Insects)

Order Coleoptera (Beetles)

Suborder Polyphaga

No Taxon (Series Cucujiformia)

Superfamily Curculionoidea

Family Curculionidae (Snout and Bark Beetles)

Subfamily Scolytinae (Bark and Ambrosia Beetles)

Tribe Hylurgini

Genus Dendroctonus

Species valens (Red Turpentine Beetle)

Numbers

Dendroctonus valens LeConte 1860

valens 'strong'

Size

Adults 5.5-9mm long(1)

Larvae 10-12mm long(1)

Range

Disjunct e. & w. populations (NS-MN-TN; BC-CA to SD-TX); south to Nicaragua(2)

Food

Primary host: Pinus(2)

Life Cycle

Overwintering in the colder part of the region is in the adult stage(1)

Females bore through the book in the basal 6' of the tree but sometimes up to the 12' mark. The gallery first runs horizontally or slightly upward then turns downward. Eggs are laid in elongate masses along the sides of the gallery. The larvae feed gregariously in the phloem. A fully-developed gallery can be a few inches to more than a foot wide. Pupation occurs in cells between the bark and the wood either in a gallery or a short distance in fresh phloem.(1)

2-3 generations per year in southern areas; further north it's 1-2 generation per year.(1)

Remarks

invasive in China

Internet References

Species page(2)

Works Cited

1.	Eastern Forest Insects Whiteford L. Baker. 1972. U.S. Department of Agriculture · Forest Service.

2.	Atkinson T.H. (200_‒2023) Bark and ambrosia beetles of the Americas

Contributed by tom murray on 7 July, 2007 - 7:17pm
Additional contributions by Mike Quinn, Vox Sciurorum, v belov, Marci Hess
Last updated 1 August, 2023 - 12:11pm

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