1. the common name of Oncideres cingulata —note twig girdler adults girdle twigs in the autumn prior to ovipositing eggs in the distal portion of the stem, which then falls to the ground 2. any insect whose larvae are borers or phloem feeders in twigs and girdle the twigs, including some flatheaded borers, Cerambycid beetles, and clearwing moths, e.g., the cottonwood twig borer (Gypsonoma haimbachiana) —see tip mothThis definition last updated 10/10/2008