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Japanese Cedar Longhorned Beetle

 Japanese Cedar Longhorned Beetle
Christopher Pierce, USDA APHIS PPQ, Bugwood.org
 Japanese Cedar Longhorned Beetle. Callidiellum rufipenne
This beetle has been in New England, North Carolina, and the west coast for some time. It was found in Maryland in 2011 and is currently in northern Harford county and Elkridge in Howard county. It is a relatively small longhorned beetle (~3/8in). Females are reddish brown and males are black with reddish “shoulders.” Adults emerge mid-April through May. Hosts include Arborvitae, Cryptomeria, False cypress, Leyland Cypress, and eastern redcedar (North Carolina). Other listed hosts include Chamaecyparis, Thujopsis, Juniper, Monterey cypress, firs, and pine. Damage appears as dead branches as small as a pencil to main trunks. The damage resembles winter dieback so look carefully for oval exit holes about 4mm x 2mm. Peel back bark and look for tunnels. Infested plant material should be destroyed.
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