The Fig. 1 shows that the active phase of predators eating lasted an average of 8-9 days, which is the longest phase in the third instar larval period (3-4 days). Larval molting experienced three times. 1st instar of larvae coming out of the egg is crawler with an average size of 1 mm (Figure 2). Then after 2-3 days, first instar molt and begin entering the 2nd instar of larvae with a body length of approximately 3-4 mm. Third instar larval body size reached 5-6 mm. Larva stage P. ramburi relatively short compared to Chrysopid in general as in the genus Chrysoperla sp. the immature stage at 21 days [8]. According to research [12], chrysopid kind Apertochrysa sp cultured on Corcyra cephalonica (Lepidoptera: Pyralidae), has a larval stage 17-18 days, a generation time of 40.6 days, females live longer up to 38 days, a long time from egg until the female dies achieve the 68 day. Development and reproduction of family Chrysopidae, potential to be developed in the laboratory, such as the one chysopid Mallada boninensis, cultured on C. cephalonica, fecundity has reached more than 139 individuals [25]. Feed preferences, 3rd instar of larvae P. ramburi