He, G.F, Bao, W.M., Lu, A.P., & Zhang, G.X. 1998 A biological study of armored scale, Abgrallaspis cyanophylli with emphasis on temperature and humidity relations.. Chinese Journal of Biological Control 14: 1-3.

Notes: The armoured scale, Abgrallaspis cyanophylli, is an important plant pest. Its biological characteristics, especially the influence of temperature and humidity on its development, survival and fecundity, were studied in the laboratory. The survival rate at 25 deg C was high at 75.9%, whereas at 30 deg C it was only 44.7%. The nymphal stage lasted from 37.0 to 64.5 days at 20 to 28 deg C. The number of crawlers per female was greatest (142.1) at 28 deg C. The average longevity of females decreased with increasing temperatures (200.2 days at 20 deg C and 62.1 day at 30 deg C). The survival rate at RH 75% was higher than that at either RH 60% or at 90%.