Sarkisov, R.N., Sevumian, A.A., & Mkrtchyan, L.P. 1974 [Dependence of the average weight of female Ararat cochineal insects on the time of their emergence onto the ground surface.]. Biologicheskii Zhurnal Armenii 27: 95-98.

Notes: Porphyrohora hamelii; gives time sequence for emergence of large, average and small females.