Asian long-horned beetle
Anoplophora glabripennis (Motschulsky, 1853)

Asian longhorned beetle is native to China and other nearby Pacific Rim countries. It was introduced in Chicago, Illinois and the New York City area through solid wood packing material from China. Domestically, movement of infested tree-based materials, including logs and firewood, can easily spread this insect. It is known to attack at least 18 species of hardwood trees including maple, birch, horse chestnut, poplar, willow, elm, ash, and black locust. Adult females chew out a place to lay their eggs forming oval to round, darkened wounds in the bark. Eggs are laid singly and they secrete a substance that hardens over and protects the egg. Larvae develop out of the eggs and chew banana-shaped galleries into the heartwood, on which they will feed in during fall and winter. The pale-yellow larvae are worm-like, elongate, and cylindrical with a varied texture on the underside; the eighth segment of the abdomen has a protruding structure. Pupae are off-white, 1 to 1 1/4 inch long and 1/3 of an inch wide. Adults emerge during the spring through large round holes (3/8" diameter) that may occur anywhere on the tree including branches, trunk, and exposed roots. These exit holes can number in the thousands per tree. Adult beetles 1 to 1 1/2 inches long, shiny-black with white spots. They have black-and-white banded antennae that are at least as long as their bodies. The upper sections of the legs of the adults are whitish-blue. Asian longhorned beetle can be distinguished from related species, such as citrus longhorned beetle, by the markings on the wing covers and the pattern of the antennae. Asian longhorned beetles require between one to three years to reach maturity.

Identification, Biology, Control and Management Resources

Selected Images from Invasive.orgView All Images at Invasive.org


Adult(s); Male
Michael Bohne, , Bugwood.org
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Life Cycle ;
Kenneth R. Law, USDA APHIS PPQ, Bugwood.org
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Larva(e);
Michael Bohne, , Bugwood.org
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Adult(s); dorsal view; Intercepted by AQIS Victoria in timber pallett from China. June 2005
Pest and Diseases Image Library, , Bugwood.org
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Adult(s); ventral view; intercepted by AQIS Victoria in timber pallett from China. June 2005
Pest and Diseases Image Library, , Bugwood.org
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Adult(s); lateral view; Intercepted by AQIS Victoria in timber pallett from China. June 2005
Pest and Diseases Image Library, , Bugwood.org
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Feature(s); pronotum; intercepted by AQIS Victoria in timber pallett from China. June 2005
Pest and Diseases Image Library, , Bugwood.org
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Feature(s); the base of the elytra in A. glabripennis is smooth while the base of the elytra in.A. chinensis has numerous tubercles; intercepted by AQIS Victoria in timber pallett from China. June 2005
Pest and Diseases Image Library, , Bugwood.org
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Adult(s); male/female pair
Dean Morewood, Health Canada, Bugwood.org
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Larva(e); Phase 2 - Jersey City, New Jersey
Thomas B. Denholm, New Jersey Department of Agriculture, Bugwood.org
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Pupa(e);
Kenneth R. Law, USDA APHIS PPQ, Bugwood.org
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