Hattingh, V., & Samways, M.J. 1992 Prey choice and substitution in Chilocorus spp. (Coleoptera: Coccinellidae).. Bulletin of Entomological Research 82: 327-334.

Notes: Abstract: Choice between prey species by Chilocorus nigritus and C. bipustulatus adults and larvae was determined; these species were maintained on Aspidiotus nerii on Cucurbita moschata and Solanum tuberosum; strong preferences were absent and differences in predators' feeding histories were not reflected in their choices; deleterious effects of a prey substitution investigated; diet changes significantly retarded larval development rate, and subsequent adults were smaller than control individuals. Keywords: biological control.