Description of the female of Heteragrion lencionii Vilela, Farias & Santos, 2021 (Odonata: Heteragrionidae), from Northeastern Brazil, with some ecological notes.

Group A of the genus Heteragrion Selys, 1862 comprises 34 species, of which 19 have complete descriptions of females. The aim of this study was to describe the female Heteragrion lencionii Vilela, Farias & Santos, 2021 based on three specimens collected at the Federal Institute of Sergipe (Brazil, Sergipe, São Cristóvão, -10.9198, -37.

Green Lacewing Is Attracted to Volatile Organic Compounds and Essential Oils Extracted from Leaves.

Plant herbivore interactions have long been recognized as a complex interplay influenced by various factors, including plant volatile emissions. Understanding the role of these volatiles in mediating plant predator interactions is crucial for developing sustainable pest management strategies. This study investigated the olfactory preferences of larvae for volatiles emitted by leaves, focusing on both seedlings and essential oils (EOs).

Tolerance Mitigates Gall Effects When Susceptible Plants Fail to Elicit Induced Defense.

Variations in plant genotypes and phenotypes are expressed in ways that lead to the development of defensive abilities against herbivory. Induced defenses are mechanisms that affect herbivore insect preferences and performance. We evaluated the performance of resistant and susceptible phenotypes of (Fabaceae) against attacks by the gall-inducing insect (Diptera).

Description of the female of Leptagrion jeromei Lencioni, Vilela & Furieri, 2021 (Odonata: Coenagrionidae) with taxonomic notes on the male.

The female of Leptagrion jeromei Lencioni, Vilela & Furieri, 2021 is described, illustrated, and diagnosed based on a specimen collected in epiphytic bromeliads at the Federal University of Sergipe ( (B0545), BRAZIL, Federal University of Sergipe, So Cristvo, -10.92707, -37.10100, 30 m asl, 6.

The rediscovery of Machadagrion garbei (Santos, 1961) (Odonata: Coenagrionidae) with notes on the hitherto unknown female.

Machadagrion garbei (Santos, 1961) was only known by the male holotype from Vila Nova, Bahia state, Brazil, and one male from Junqueira, Alagoas state, Brazil, collected in 1963. Over 50 years of its original description we report its rediscovery with specimens collected in Barra do Jacupe, Camaari County, Bahia state, Brazil, and Serra de Itabaiana, Sergipe state, Brazil. We provide illustrations and diagnosis from both sexes, including the description of the female.

Shedding Lights on Crude Venom from Solitary Foraging Predatory Ant : Initial Toxinological Investigation.

Some species of primitive predatory ants, despite living in a colony, exercise their hunting collection strategy individually; their venom is painful, paralyzing, digestive, and lethal for their prey, yet the toxins responsible for these effects are poorly known. is a previously unrecorded solitary hunting ant from the Brazilian Cerrado. To overcome this hindrance, the present study performed the in vitro enzymatic, biochemical, and biological activities of to better understand the properties of this venom.

Morphological description of the final instar larvae of Argia reclusa Selys, 1865 and Tigriagrion aurantinigrum Calvert, 1909 from Southeastern Brazil (Odonata: Coenagrionidae).

The final instar larvae of Argia reclusa Selys, 1865 and Tigriagrion aurantinigrum Calvert, 1909 are described, diagnosed and illustrated. The larvae of A. reclusa has a very prominent premental ligula, shared with a single species in Brazil, from which it can be separated by a combination of characters.

Leptagrion itabaiana sp. nov. (Odonata: Coenagrionidae) from Serra de Itabaiana National Park, Sergipe state, Northeastern Brazil.

Leptagrion itabaiana sp. nov. (Brazil, Sergipe, Areia Branca, Serra de Itabaiana National Park, (10.

Heteragrion lencionii (Odonata: Heteragrionidae) sp. nov. from Serra de Itabaiana National Park, Northeastern Brazil.

The Neotropical genus Heteragrion Selys, 1862 is one of the most speciose among Zygoptera. Notwithstanding, most of its species are poorly known, especially those from undersampled areas such as Northeastern Brazil. Here, we describe Heteragrion lencionii sp.

Habitat integrity drives Odonata diversity in Eucalyptus-dominated landscape.

Silviculture can be considered a sustainable alternative to the extraction of wood from natural forests in Brazil. However, the high demand for wood products has decreased the area of natural Cerrado due to land transformation for forestry activities. This transformation could lead to the loss of species, including insects that cannot tolerate the new environment dominated by exotic plant species.

Final instar larva of Acanthagrion truncatum Selys, 1876 (Zygoptera: Coenagrionidae).

Here we describe the final instar larvae of Acanthagrion truncatum Selys, 1876, the 16th described for the genus. We compare the diagnostic characters of A. truncatum with other species of the Group II.