Stimmel, J.F. 1980a Obscure scale, Melanaspis obscura Comstock (Homoptera: Diaspididae).. Regulatory Horticulture (Pennsylvania Department of Agriculture) 6(1): 11-12 (Ent. Circ. No. 46).

Notes: Hosts, distribution, identification, life history, damage and control of this common pest of cultivated oaks.