Lepidoptera genitalia

About: Lepidoptera genitalia is a research topic. Over the lifetime, 10114 publications have been published within this topic receiving 78876 citations. The topic is also known as: Uncus.

Host Plants and Parasites of Some Arizona Seed-feeding Insects

Abstract: The hosts and parasites of 52 species of Bruchidae (Coleoptera) that occur in Arizona are listed. In addition, species in 3 families of Lepidoptera, 6 families of Hymenoptera, 1 family of Diptera and at least 3 species of Curculionidae that occur in seeds and pods are listed. When known, each species is classified according to its trophic role and the insect-host plant information is cross-referenced in 2 tables.

Geographic Variation in Susceptibility of Chilo suppressalis (Lepidoptera: Pyralidae) to Bacillus thuringiensis Toxins in China

Abstract: Geographic variation in the susceptibility of the striped stem borer, Chilo suppressalis (Walker) (Lepidoptera: Pyralidae), in China to Bacillus thuringiensis (Bt) insecticidal crystal proteins Cry1Ac and Cry1Ab was studied to establish baseline information for comparing the future response of populations with increased exposure to Bt products. Rice is the major host of C. suppressalis, and Bt rice may be released in China in the near future. Twelve populations of the pest were collected from the major rice-growing regions of China. LC50 estimates were determined for all populations for Cry1Ac and for eight populations for Cry1Ab. The bioassay results indicated that the range of LC50 in neonate larvae to Cry1Ac and Cry1Ab was from ≈15 to ≈157 mg (AI)/L and ≈2 to ≈34 mg (AI)/L, respectively. LC50 values were lower for Cry1Ab than for Cry1Ac, and there was a significant positive correlation between the two toxins tested.