Studies of predators of the balsam woolly aphid Adelges piceae (Ratz.) (Homoptera: Adelgidae). VII. Laricobius rubidus Lec. (Coleoptera: Derodontidae), a predaotr of Pineus strobi (Htg.) (Homoptera: Adelgidae) 1960. Clark, R.C.; Brown, N.R. The Canadian Entomologist 92: 237-240.