Venom induced pressure elevation reversible syndrome: a severe pediatric rattlesnake envenomation, evidence for conservative management, and call for naming the syndromeVenom induced pressure elevation reversible syndrome: a severe pediatric rattlesnake envenomation, evidence for conservative management, and call for naming the syndrome

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  Venom induced pressure elevation reversible syndrome: a severe pediatric rattlesnake envenomation, evidence for conservative management, and call for naming the syndromeVenom induced pressure elevation reversible syndrome: a severe pediatric rattlesnake envenomation, evidence for conservative management, and call for naming the syndrome Abstract Introduction : Rattlesnake envenomation frequently mimics traumatic compartment syndrome, as both are characterized by severe pain, swelling, and elevated compartment pressures. Unlike traumatic compartment syndrome there have been no documented cases of ischemic limb injury after envenomated patients have received antivenom. Furthermore, there is experimental evidence that fasciotomy worsens myonecrosis. This has led medical toxicologists and surgical guidelines to shift from liberally recommending fasciotomy to near universal recommendation of antivenom alone. Despite this, fasciotomies continue to be recommended and performed on rattle...

Sexual association and description of the male of Braunilla nigrina (Banks, 1946) (Hymenoptera, Pompilidae, Pompilinae)

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Sexual association and description of the male of Braunilla nigrina (Banks, 1946) (Hymenoptera, Pompilidae, Pompilinae)

ABSTRACT

The family Pompilidae (Latreille, 1804), within the order Hymenoptera, comprises a monophyletic group of solitary wasps, notably specialized in the predation and provisioning of spiders as a larval resource. The genus Braunilla (= Balboana Banks, 1944), restricted to the Neotropical region, currently includes 11 valid species, of which only two have males formally described. Braunilla nigrina was originally described by Nathan Banks in 1946; however, the original description lacks precise information regarding the sex of the holotype, generating taxonomic uncertainty concerning the sexual identity of the species. In this context, the present study aimed to conduct a morphological revision of B. nigrina, focusing on sexual association and morphological characterization of the specimens. A total of 22 individuals were examined, collected from the Cerrado biome in the municipalities of Capitólio and Ingaí, southern Minas Gerais, Brazil. Based on detailed morphological analyses, it was possible to associate males and females, which allowed for the first formal description of the male and the redescription of the female based on additional material. Regional studies such as this are essential for advancing the taxonomic knowledge of Pompilidae in Brazil, providing significant contributions in terms of morphological data, distributional records, and formal descriptions of poorly known species such as B. nigrina.

Souza, R. F., Nunes, J. F., Almeida, D. J. D. S., & Hermes, M. G.. (2026). Sexual association and description of the male of Braunilla nigrina () (Hymenoptera, Pompilidae, Pompilinae). Revista Brasileira De Entomologia, 70(2), e20250124. https://doi.org/10.1590/1806-9665-RBENT-2025-0124