Dioryctria cambiicola

(Dyar, 1914)

Western Pine Moth

Dioryctria cambiicola, commonly known as the western pine , is a of snout moth in the . First described by Harrison Gray Dyar Jr. in 1914, this species is native to western North America. The Dioryctria includes coneworm moths whose larvae typically feed within conifer cones, though some species feed in foliage shoots or under bark. are small moths, measuring 10–15 mm in length.

Dioryctria cambiicola, det. Carl Heinrich, -72116, North Rim, Grand Canyon, Arizona, 23 July 1938, Louis Schellbach III 1 (49549327033) by Robb Hannawacker. Used under a Public domain license.

Pronunciation

How to pronounce Dioryctria cambiicola: /di.oˈrɪk.tri.ə kæmˈbiː.kə.lə/

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Identification

Members of the Dioryctria can be recognized by their small size (10–15 mm), slender bodies, and wings often held rolled around the body at rest. The labial palps are enlarged, heavily scaled, and project forward to form a distinct 'snout' characteristic of snout (). Specific identification of D. cambiicola likely requires examination of genitalic characters or geographic context, as within Dioryctria are morphologically similar.

Images

Distribution

Found in western North America from British Columbia and Alberta south to California and New Mexico. The occurs in coniferous forest within this range.

Host Associations

Pinus - larval Larvae of Dioryctria typically feed in conifer cones, foliage shoots, or under bark; specific records for D. cambiicola not confirmed in sources

Behavior

are attracted to lights at night. Larvae are concealed feeders, developing within conifer cones or under bark, which makes them difficult to detect and control with .

Ecological Role

Larvae function as herbivores in coniferous forest . The serves as a for , including Baryscapus dioryctriae, which has been studied as a potential agent for related Dioryctria species.

Human Relevance

in the Dioryctria are considered serious pests of pine trees, with larvae damaging cones and shoots. While D. cambiicola specifically is not well-documented as a major pest, related species such as D. pryeri and D. abietella cause significant economic damage in managed pine forests. The concealed feeding habit of larvae makes chemical control generally ineffective, increasing interest in approaches.

Similar Taxa

Dioryctria auranticellaAlso a coneworm in the same with similar and appearance; are difficult to distinguish without close examination
Dioryctria abietellaClosely related coneworm with overlapping geographic range and similar larval habits in conifer cones
Dioryctria pryeriAnother coneworm in the same , known pest of pine trees in Asia, targeted by same agents

More Details

Original Description

First described by Harrison Gray Dyar Jr. in 1914 under the basionym Pinipestis cambiicola.

Related Research

The Baryscapus dioryctriae has been discovered in China as a natural enemy of Dioryctria , with potential for applications.