none no species The weevil Trichobaris bridwelli Barber is a natural enemy of jimsonweed (Datura stramonium L.) in the southern United States. The temporal distribution of all life stages showed that T. bridwelli is bivoltine in central Texas and overwinters principally in the adult stage inside the seed capsules of jimsonweed. Females oviposited in the leaves, flowers, and capsules. Subsequent development occurred both in the stems and capsules of its host plant. All life stages of T. bridwelli were attacked by hymenopterous parasitoids; Anaphes sp. and Microctonus sp. are new host records. In the laboratory, adult females lived an average of 16.1 wk and deposited an average of 324 eggs. Development in the laboratory required 37.8 d: egg 5.9 d, larval stage 20.2 d, prepupal period about 3 d, and pupal stage 8.7 d. Animals and man; Control; Biological control; Reproduction; Life cycle and development; Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Ecology; Land and freshwater zones; Nearctic region; North America; USA Trichobaris bridwelli (Curculionidae); Control of; Datura stramonium (plant); Potential control agent; Reproduction; Life cycle; Hymenopteran parasites; Anaphes & Microctonus; New host records; Plant hosts; Datura stramonium (jimsonweed); Population dynamics; Texas; Robertson County; Easterly; Biology, population dynamics & potential plant control agent Microctonus (Braconidae ); Anaphes (Mymaridae ); Coleopteran hosts; Trichobaris bridwelli; New host record; Texas; Robertson County; Easterly; New coleopteran host record