Bartlett, B.R., & Ball, J.C. 1964 The developmental biologies of two encyrtid parasites of Coccus hesperidum and their intrinsic competition.. Annals of the Entomological Society of America 57(4): 496-503.

Notes: The superiority of Metaphycus luteolus over Microterys flavus (both internal, gregarious parasites of Coccus hesperidum) in the field is contrary to the pattern of dominance of the two species when they compete within the body of a common host. The developmental biologies of the two parasites of the two parasites, the manner of supernumerary egg reduction, the processes by which they achieve dominance in the host's body, and the effect of their intraspecific and interspecific competition under different conditions were studied by a technique which permitted continuous observation of all developmental stages of both parasites without their removal from the body of the host.