Related Experiment Video
Updated: Feb 28, 2026

Electroporation-mediated RNA Interference Method in Odonata
Published on: February 6, 2021
Gynacantha dryadula sp. nov. from the Guiana Shield (Odonata, Anisoptera: Aeshnidae)
Ulisses Gaspar Neiss1, Jürg DE Marmels
1Instituto de Criminalística, Departamento de Polícia Técnico-Científica, Manaus, AM, Brazil.. ulisses.neiss@gmail.com.
Abstract:
The new species is described and illustrated on the basis of two reared, subteneral males from Brazil, their larval exuviae, a mature male from French Guiana, a mature female from Venezuela, and a mature female from Surinam. One of the Brazilian males is the holotype (BRAZIL, Amazonas State, Manaus, Reserva Florestal Ducke, BR 174-km 26, trail to Acará creek, 02º55'47"S, 59º58'22"W, 0.7 m elevation, deposited in INPA). The new species (total length 50-54 mm) differs from other small species of same genus by color pattern of thorax, middle and hind tibiae dark with external (dorsal) yellow streak, male cercus with truncated tip lacking apical spine, and male epiproct reaching or slightly surpassing midlength of cercus. The larva, besides of its small size (28-31 mm), has an epiproct with well-developed and slightly diverging apical spines and an unusually long paraproct.
Related Concept Videos
Epiphytes, Parasites, and Carnivores
Accessory Glands of the Male Reproductive System
The epididymis is a small, comma-shaped organ located at the back of each testicle. The epididymis can be divided into three main parts: the head, body, and tail. The head of the epididymis...
External Female Genitals
Pollination and Flower Structure
Accessory Ducts of the Male Reproductive System
The epididymis is a small, comma-shaped organ located at the back of each testicle....
Osmoregulation in Insects

