Mani, M., & Krishnamoorthy, A. 1999b The nigra scale, Parasaissetia nigra and its natural enemy on custard apple in Karnataka.. Insect and Environment 5(1): 20.

Notes: Parasaissetia nigra was collected from Annona squamosa in Bangalore, India, during January-March 1997. Scutellista cyanea [S. caerulea] caused 18.5% parasitism in January, which increased to 42% in March.