noneEnter This study was performed on an alfalfa crop located on the central plain of a Araucana Region, Chile and in the Laboratorio de Entomologa Aplicada de la Facultad de Ciencias Agropecuarias y Forestales at the Universidad de La Frontera. Certain aspects of the biology of Hippodamia variegata (Goeze) (Coleoptera: Coccinellidae) were determined, more specifically in relation to its life cycle, seasonality, and population fluctuation. It was established that this coccinellid requires 190.32 [plus or minus] 10.2 degree-days to complete a generation under laboratory conditions. This information along with the field samplings made it possible to calculate that H. variegata completes four generations per season in the alfalfa crop (Medicago sativa L.). BR Reproduction. Life cycle and development. Parasites diseases and disorders. Parasites. Insect parasites. Hosts. Insect hosts. Ecology. Population dynamics. Habitat. Man made habitat. Land zones. Neotropical region. South America. Hippodamia variegata (Coccinellidae): Host; Dinocampus coccinellae (Braconidae): Parasite. Dinocampus coccinellae: Coleopteran hosts, Hippodamia variegata, Prevalence, host biology, Cultivated land habitat, Alfalfa crop, Chile, La Araucania; Hippodamia variegata: Reproductive productivity, Voltinism, prevalence, Life cycle, Hymenopteran parasites, Dinocampus coccinellae, Population size, Seasonal abundance, Cultivated land habitat, Alfalfa crop, Chile, La Araucania. ST Animalia, Arthropoda, Insecta, Coleoptera, Polyphaga, Cucujoidea, Coccinellidae; Animalia, Arthropoda, Insecta, Hymenoptera, Apocrita, Terebrantia, Ichneumonoidea, Braconidae. Arthropods; Beetles; Hymenopterans; Insects; Invertebrates.