Related Experiment Video
Updated: Jul 13, 2026

05:19
Choice and No-Choice Bioassays to Study the Pupation Preference and Emergence Success of Ectropis grisescens
Published on: October 30, 2018
Note on gynandromorphism in the eucalyptus defoliator Thyrinteina arnobia (Stoll, 1782) (Lepidoptera: Geometridae)
Aline S Bernardino1, Teresinha V Zanuncio, José C Zanuncio
1Departamento de Biologia Animal, Universidade Federal de Viçosa, Viçosa, MG, Brazil.
Anais Da Academia Brasileira De Ciencias
|July 13, 2007
Abstract:
The brown moth Thyrinteina arnobia (Stoll, 1872) (Lepidoptera: Geometridae) is an important pest in Brazilian eucalyptus plantations. A gynandromorph individual of T. arnobia was found in a population of this pest in a laboratory rearing and it is described.
Related Concept Videos
Pollination and Flower Structure
Flowers are the reproductive, seed-producing structures of angiosperms. Typically, flowers consist of sepals, petals, stamens, and carpels. Sepals and petals are the vegetative flower organs. Stamens and carpels are the reproductive organs.
Epiphytes, Parasites, and Carnivores
Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the biosynthesis of the...

