Hodgkiss, H.E., & Parrott, P.J. 1914 The parasites of the San José scale in New York.. Journal of Economic Entomology 7: 227-228.

Notes: The parasites listed include Prospaltella perniciosi, Aphelinus fuscipennis, A. diaspidis, Signiphora nigrita, and Perissopterus pulchellus.