Stoetzel, M.B., & Davidson, J.A. 1973 Life history of the obscure scale (Homoptera: Diaspididae) on pin oak and white oak in Maryland.. Annals of the Entomological Society of America 66: 308-311.

Notes: Melanaspis obscura occurs in all stages on both hosts; explanation is given that the two populations are reproductively isolated; distribution; called attention to development of adult female cover as a means of predicting crawler emergence.