Phylogeography of the ambrosia beetle Euwallacea interjectus (Coleoptera: Curculionidae: Scolytinae): an emerging poplar pest and its Fusarium mutualists from poplar plantations in China.

Native to Asia, Euwallacea interjectus (Blandford) (Coleoptera: Curculionidae: Scolytinae) is a destructive and invasive pest of live trees, and now it has been found in the United States and Argentina. In recent years, this pest appeared in high densities in poplar monocultures from Eastern China (Jiangsu and Shanghai) and Argentina and caused significant poplar mortality. However, the origin of the pests related to tree damage and the Fusarium mutualists from some poplar zones in China remained unclear.

Biology of , an emerging poplar pest, reared on an ambrosia beetle artificial diet and medium of fungal symbiont.

a recently discovered pest in poplar plantations, poses a significant economic threat due to its role in causing widespread tree mortality. This pest's cryptic behaviour has hindered research and control efforts, making laboratory rearing a valuable tool for studying its development and biology. We investigated the development period and biological characteristics of using artificial diets and fungal medium.

Transcriptome analysis of Euwallacea interjectus reveals differentially expressed unigenes related to developmental stages and egg laying.

Euwallacea interjectus (Curculionidae: Scolytinae) is an ambrosia beetle species in its early stages of research. Therefore, studying the related molecular mechanism associated with the development and egg laid is essential. Transcriptome sequencing was used in this study to compare the gene expression of the beetles at different developmental stages and female adults before and after oviposition.

Complete Mitochondrial Genome of Scolytoplatypodini Species (Coleoptera: Curculionidae: Scolytinae) and Phylogenetic Implications.

The complete mitochondrial genomes (mitogenomes) of beetles in the tribe Scolytoplatypodini (genus ) were sequenced and annotated. These included (15,324 bp), (15,394 bp), (15,167 bp), and (15,267 bp). The four mitogenomes contained 37 typical genes, including 13 protein-coding genes (PCGs), 22 transfer RNA genes (tRNAs), and 2 ribosomal RNA genes (rRNAs).

New species and new records of Schaufuss (Curculionidae, Scolytinae) from China, and resurrection of (Tsai & Huang, 1965) as a distinct species.

This study describes two new species, Liao, Lai & Beaver, and Liao, Lai & Beaver, , reinstates (Tsai & Huang, 1965) from synonymy with (Blandford, 1893), and records five species for the first time from China, Blandford, 1898, Gebhardt, 2006, Hagedorn, 1904, Eggers, 1939, Maiti & Saha, 2009, and three from mainland China, Gebhardt, 2006, Beaver & Liu, 2007, Hagedorn, 1904. A key to the males of species in China is given. Genetic data from four genes indicate a rather isolated position for both new species, although their genetic relationship to each other was close.

A new species, a new combination, and a new record of Chapuis, 1865 (Coleoptera, Curculionidae, Platypodinae) from China.

This study describes a new species, Lai & Wang, , designates a new combination, (Browne, 1975, from Herbst, 1793), and notes a new record, Beeson, 1937, from China. Genetic data from four genes indicate that the new species and form a clade clustered with other species. Molecular phylogeny and morphological characters support their taxonomic placement.