Coptops annulipes, Gahan, 1894

Pham, Duy Long, Chi, Nguyen Minh, Loi, Vu Van, Danh, Duong Ngoc, Vui, Nguyen Thi Kim, Hung, Pham Tien, Dinh, Le Cong, Ha, Ngoc Linh & Vitali, Francesco, 2023, Longhorn beetles as new pests for exotic plantations in Vietnam, Ecologica Montenegrina 70, pp. 188-198 : 191

Coptops annulipes damage in Acacia crassicarpa

First and second-instar larvae initially feed on the inner bark and sapwood, and then tunnel deeper into the heartwood thereby creating zigzag patterns inside the trunks. The feeding activity of the larvae causes damage to trees and can be of concern in weakening and killing hosts. The gallery is 9–14 mm wide ( Fig. 1D ) and 26–35 cm long. The exit holes range from 11 to 12 mm in diameter, with a circular shape. Larvae typically cause damage at a height of 1 to 3 m on host trunks and often attack trees affected by diseases or mechanical damages because such trees may have weakened or compromised defenses, making them more susceptible to infestations.

Figures

Figure 1. Coptops annulipes damage in Acacia crassicarpa in Quang Tri province: A, B, C. female adult; D. damaged tree with holes on the stem (white arrows).