Environmental factors play a crucial role in influencing sexual selection in insects and the evolution of their mating systems. Although it has been reported that sexual selection in insects may change in response to varying environments, the reason for these changes remains poorly understood. Here, we focus on the mate selection process of a ladybird, Cryptolaemus montrouzieri, when experienci...

The direct toxicity of insecticidal soap, horticultural oil, Azatin, an extract from the Neem tree containing azadiractin, and BotainiGard, a commercial formulation of the entomopathogenic fungus Beauveria bassiana, was assessed on adults of four species of coccinellids--Hippodamia convergens (Guérin-Ménéville), Coleomegilla maculata (DeGeer), Harmonia axyridis Pallas, and Cryptolaemus montrouz...

Poviliana dayubiikii Delorme sp. nov. and Poviliana montrouzieri Delorme sp. nov. are described from New Caledonia. They are respectively found in mid altitude rain forest on Mont Panié (570 m) and Col des Roussettes (300 m). Male calling songs of the two new species are described from the field recordings. A key to the species of Poviliana is also provided.

The brightest and most vivid colours in nature arise from the interaction of light with surfaces that exhibit periodic structure on the micro- and nanoscale. In the wings of butterflies, for example, a combination of multilayer interference, optical gratings, photonic crystals and other optical structures gives rise to complex colour mixing. Although the physics of structural colours is well un...

Based on the importance of using low-risk compounds to protect beneficial agents, present study evaluated acute toxicity lethal and sublethal concentrations insecticides thiacloprid, pyriproxyfen, chlorantraniliprole adults Aphelinus mali (Haldeman), main parasitoid woolly apple aphid, Eriosoma lanigerum (Hausmann). Similarly, acetamiprid, buprofezin, cyantraniliprole were Acerophagus flavidulu...

Recently, several invasive mealybugs (Hemiptera: Pseudococcidae) have rapidly spread to Asia and have become a serious threat to the production of cotton including transgenic cotton. Thus far, studies have mainly focused on the effects of mealybugs on non-transgenic cotton, without fully considering their effects on transgenic cotton and trophic interactions. Therefore, investigating the potent...