Fungal specimens from Salix causing willow Cytospora canker in northern China were evaluated through morphological observation and phylogenetic analysis. They were identified as four species — C. rostrata sp. nov., C. nivea, C. chrysosperma, and Valsa populina. Cytospora rostrata is a new beaked species parasitizing Salix cupularis in Gansu Province, China. It is morphologically distinguished from other Cytospora species by its fruiting bodies with a single locule and a thorn-like beak. Molecular evidence obtained from the internal transcribed spacer (ITS) region also suggests that C. rostrata represents a distinct lineage within Cytospora. This is the first Chinese record of C. nivea on Salix.

Three new species of the genus Parandes Muir, 1925 (Hemiptera, Fulgoromorpha, Cixiidae, Andini), P. elongatus Lv & Chen, sp. nov., P. guangxiensis Lv & Chen, sp. nov. and P. hamatus Lv & Chen, sp. nov., are described and illustrated from Southwest China (Yunnan and Guangxi) to give the genus six species in total. An updated identification key and checklist to all known species of Parandes are provided, as well as a map of their geographic distributions.

Three new species of the genus Oecleopsis Emeljanov, 1971 from China, O. acerbus Lv & Chen, sp. nov. and O. panxianensis Lv & Chen, sp. nov. from Guizhou Province, and O. digitatus Lv & Chen, sp. nov. from Sichuan Province, are described and illustrated. With these additions, the number of species in the genus is increased to 18. An updated identification key and checklist of all known species of Oecleopsis are provided as well as a map of their geographic distributions.

Introduction: The ‘Fengtangli’ plum (Prunus salicina Lindl.) is favoured by consumers for its characteristic flavor. The purpose of this study was to explore the characteristics of volatile flavor compounds in ‘Fengtangli’ plum.Methods: The flavor compounds of both ‘Fengtangli’ and ‘Siyueli’ plums were analyzed using comprehensive two-dimensional gas chromatography time-of-flight mass spectrometry (GC×GC-TOF MS).Results: The results revealed the presence of 495 volatile flavor compounds in ‘Fengtangli’ plum and 466 in ‘Siyueli’ plum. The relative concentrations of hydrocarbons, alcohols, ketones, and esters in ‘Fengtangli’ plum were significantly elevated compared to those detected in ‘Siyueli’ plum. Moreover, the sensorial attributes of sweetness, citrus, herbal, floral, and fruity notes were more prominent in ‘Fengtangli’ plum relative to those of ‘Siyueli’ plum. Through the integration of differential metabolite analysis and relative odor activity assessment, it is hypothesized that furan-2-pentyl; (E)-2-octenal; and 1-octen-3-one may represent the characteristic of volatile flavor compounds in ‘Fengtangli’ plum.Discussion: The research results may provide a theoretical reference for the development and application of ‘Fengtangli’ plum and the study of the synthesis mechanism of characteristic flavor compounds.

Cicadella viridis (L.) and Evacanthus interruptus L. (Hemiptera: Cicadellidae) are two of the most important leafhopper pests worldwide. Identifying habitat suitability areas of these species could be useful for their management. This study used the MaxEnt model to predict the current and future global habitat suitability areas of these species based on distribution and associated environmental data. The model showed that isothermality and the mean temperature of the driest quarter of the year were the most important environmental factors affecting the distribution of C. viridis and E. interruptus. Europe and southern China are the current primary habitat suitability areas for the two species. The high habitat suitability areas for C. viridis are also concentrated in these areas, whereas the high habitat suitability areas for E. interruptus are mainly found in western Europe. Under future climate change scenarios, the area of the two species habitat suitability areas increases, and the high habitat suitability areas for C. viridis decrease. However, the high habitat suitability areas for E. interruptus increase in 2041–2060 shared socioeconomic pathways 585 (ssp585) but decrease in 2041–2060 and 2061–2080 shared socioeconomic pathways 126 (ssp126). It is necessary to develop measures to monitor these species within habitat suitability areas, especially in high habitat suitability areas, to reduce economic losses.

In this study, three new bamboo-feeding species of the genus Bambusiphaga Huang & Ding, 1979 (Hemiptera, Fulgoroidea, Delphacidae, Tropidocephalini), B. caudospina Lv, Li & Chen, sp. nov., B. laterospina Lv, Li & Chen, sp. nov. and B. striola Lv, Li & Chen, sp. nov. from Southwest China, are described and illustrated, bringing the total number of species in the genus to 34. An updated identification key and checklist to all known species of Bambusiphaga are provided.