Rizk, G.N., & Ahmed, O.S. 1981 Studies on the biology of olive scale insect, Leucaspis riccae (Hemiptera, Homoptera, Diaspididae).. Research Bulletin, Ain Shams University, Faculty of Agriculture No. 1655: 1-12.

Notes: Spring and fall generations; oviposition; life span; mortality of males and females; laboratory study.