Stimmel, J.F. 1993 Beech scale, Cryptococcus fagisuga Lindinger (Homoptera: Eriococcidae).. Regulatory Horticulture (Pennsylvania Department of Agriculture) 19(1): 17-18 (Ent. Circ. No. 153).

Notes: hosts, distribution, identification, life history, damage and control of this scale that lacks natural enemies.