Mkrtchyan, L.P., Sarkisian, S.M., & Sarkisov, R.N. 1978 [Heterogeneity of eggs in Ararat cochineal Porphyrophora hamelii Brandt (Homoptera: Coccoidea).]. Biologicheskii Zhurnal Armenii 31: 921-926.

Notes: Non-mated and mated females lay eggs; egg-laying is somewhat delayed in individuals not mated as compared with mated ones.