From Scorpion Venom to Infection Research: The Promise of Opis16a (Blog Entry)

  Opistophthalmus carinatus , a southern African scorpion whose venom contains opistoporin 1, the parent peptide from which researchers derived the shorter antimicrobial peptide Opis16a. Credit: Dan Lee / CC0 1.0 From Scorpion Venom to Infection Research: The Promise of Opis16a A synthetic peptide inspired by a southern African scorpion’s venom shows activity against drug-resistant bacteria—but its potential as a wound treatment remains under investigation. Scorpion venom is a complex mixture of biologically active molecules. While many are studied for their effects on ion channels and the nervous system, others offer a different research opportunity: understanding how peptides can damage bacterial cells. One such candidate is Opis16a , a synthetic, 16-amino-acid fragment derived from opistoporin 1, a peptide originally isolated from the venom of Opistophthalmus carinatus . Research highlighted by Nature Africa suggests that this shortened molecule combines broad antibacterial acti...

Three new Cybaeodamus Mello-Leitão, 1938 species from Brazil (Araneae, Zodariidae)

 


Three new Cybaeodamus Mello-Leitão, 1938 species from Brazil (Araneae, Zodariidae)

Abstract

Three new Brazilian species of the zodariid genus Cybaeodamus Mello-Leitão, 1938 are described: C. ampullatus sp. nov. (♂♀), C. spinosissimus sp. nov. (♂) and C. malkini sp. nov. (♂). Descriptions are accompanied with high-quality illustrations and microphotographs. An updated distribution map and a key to all the species in the genus are presented. The morphological diagnostic characters of the genus are discussed.

Henrard, A., Jocqué, R., & Carvalho, L. S. (2025). Three new Cybaeodamus Mello-Leitão, 1938 species from Brazil (Araneae, Zodariidae). European Journal of Taxonomy, 1004(1), 92–119. https://doi.org/10.5852/ejt.2025.1004.2965