A study of the genus Scymnus Kugelann (Coleoptera: Coccinellidae) was made based on examination of specimens from various Mexican entomological collections. Twenty-five species were found, of which Scymnus (Pullus) kansanus Casey, Scymnus (Pullus) cerinotum Gordon, Scymnus (Pullus) enochrus Gordon, Scymnus (Pullus) pulvinatus Wingo, Scymnus (Pullus) rohdendorfi Ukrainsky, Scymnus (Pullus) trulla Gordon, Scymnus (Pullus) howdeni Gordon, Scymnus (Pullus) hubbardi Gordon, Scymnus (Pullus) ignarus Gordon, Scymnus (Pullus) impletus Gordon, and Scymnus (Pullus) simillimus Gordon are new country records for Mexico. Two new species are described and illustrated: Scymnus (Pullus) zuritai Nestor-Arriola and Niño-Maldonado, new species and Scymnus (Pullus) erwini Nestor-Arriola and Niño-Maldonado, new species. A key to the Scymnus species occurring in Mexico is provided.

Phanaeus violae Halffter, Moctezuma, and Nogueira, new species is described, illustrated, and compared to the related species Phanaeus damocles Harold and Phanaeus palliatus Sturm. Locality data are provided for the three species. A modification to a previously published key to species of the Phanaeus quadridens species-group is given.

The tribe Anatistini Lacordaire, 1856, is a relatively small group of leaf chafer scarabs with only four genera and fewer than 30 species. The collection at the Natural History Museum, London is one of the largest and most comprehensive Coleoptera collections in the world, and includes important type material for four out of 27 species. However, its collection of Anatistini is very small (one genus, seven species, 36 specimens). Forty-five percent of the material was acquired from two large collections in the early 20^th century. In this catalog, we provide an overview of the collection of Anatistini at the Natural History Museum, with historical context and background.

La tribu Anatistini es una tribu relativamente pequeña de escarabajos defoliadores de la hojas, con solo cuatro géneros y menos de 30 especies. La colectección del Museo de Historia Natural de Londres es una de las colecciones de coleópteros más grandes y completas del mundo, e incluye material tipográfico importante para cuatro de las 27 especies. Sin embargo, la colección de Anatistini es muy pequeña (uno género, siete especies, 36 especímenes). El 45% del material se adquirió en dos grandes colectas a principios del siglo XX. En este catálogo, proporcionamos una descripción general de la colección de Anatistini del Museo de Historia Natural, con contexto histórico y sus antecedentes.

We describe an exosternine histerid, Vaquerister cantador Caterino and Tishechkin, new genus and new species, from two localities in the arid parts of northwestern Mexico. The males of this species exhibit remarkable secondary sexual modifications, including deeply excavated mesotibiae and trichome-like structures on the prosternum. Its phylogenetic position within Exosternini is unclear, and it shares few obvious synapomorphies with other New World lineages in the tribe. Its reported association with rotting cactus is also unusual for the tribe, though known in other Histerinae and Dendrophilinae.

Describimos un nuevo género y especie de Histeridae: Exosternini, Vaquerister cantador Caterino y Tishechkin, genero y especie nueva, de dos localidades en las partes áridas del noroeste de México. Los machos de esta especie exhiben notables modificaciones sexuales secundarias, que incluyen mesotibiae profundamente excavadas y estructuras similares a tricomas en el proesternón. Su posición filogenética dentro de Exosternini no está seguro y comparte pocas sinapomorfias obvias con otros linajes del Nuevo Mundo en esta tribu. Su asociación reportada con cactus en descomposición también es inusual para la tribu, aunque se conoce en otros Histerinae y Dendrophilinae.

Xylosandrus crassiusculus (Motschulsky, 1866) occupies worldwide temperate to tropical forests and suburban areas within its natural and non-native range as a result of human introductions. Given its pest status, several studies of population genetics have been conducted. As a result of an ongoing study, several smaller individuals from southern Thailand exhibited nucleotide differences that were dissimilar to the remaining individuals, thus calling into question the species status of these individuals. We performed a phylogenetic analysis of X. crassiusculus individuals from widely dispersed locations, including an individual from southern Thailand, and a robust sampling of other Xylosandrus Reitter, 1913 species using xyleborine diagnostic genes mtDNA COI and nucDNA CAD. The smaller individual from southern Thailand was sister to the remaining X. crassiusculus individuals and demonstrated >13% and >3% nucleotide difference in COI and CAD sequences, respectively. Upon the examination of type specimens, we confirmed that these smaller X. crassiusculus individuals were indeed Xylosandrus declivigranulatus (Schedl, 1936), status restored, which we resurrect. Its smaller size and pronotum as long as wide diagnose this pseudocryptic species from X. crassiusculus.

The rove beetle genus Bolitobius Leach is represented by 21 species and two subspecies distributed in the Holarctic Region and the Himalaya. In this paper, Bolitobius lilizheni Yin and Hu, new species of the B. setiger group is described from Tibet, China, and is compared with, and distinguished from, related congeners. The new species is distinguished by the male sternite VIII possessing bristle fields fused at the base, in contrast to clearly separated fields in all other congeners of the group.

Study of collections from Texas and Oklahoma yielded specimens of an undescribed species in the genus Brachys Dejean very similar to and previously confused with Brachys ovatus (Weber). Brachys wellsoi Hespenheide, new species is described, illustrated, and compared with previously known species.

Variimorda holzschuhi Horák, 1985 (Coleoptera: Mordellidae: Mordellini) is recorded as a wood-boring beetle on grapevines in the Aricak District (Elâzığ Province, Turkey). The record represents the first observation of a species of Variimorda Méquignon, 1946 developing inside and possibly harming the trunk of a cultivated plant. The condition of discovery and possible association with other beetles are presented and discussed.

Dung beetles play an important role in the sustainability of agroecosystems by providing various ecosystem services. The spatial distribution of species can be affected by vegetation structure and soil type at a small scale. Our study was conducted in a cattle ranch in which there were two grassland areas with different types of soil (humid silty clay vs. dry clay) and a plantation of Eucalyptus L'Hér. (Myrtaceae). The aim of this study was to analyze variations in diversity and structure of dung beetle assemblages by considering the feeding guilds (coprophagous, necrophagous, and generalists) and functional groups (paracoprids, telecoprids, and non-nester dwellers) among the three mentioned habitats. Nine pitfall traps baited with cow dung, horse dung, or carrion were placed simultaneously at each site every two weeks over the course of a year. Coprophagous species dominated over necrophagous and generalist species in abundance and biomass in each habitat. The highest species richness occurred in the pasture on humid silty clay soil and the lowest in the Eucalyptus plantation. Abundance and biomass of paracoprids were highest in the pasture on humid silty clay soil, while non-nester dwellers dominated in the pasture on dry clay soil and the Eucalyptus plantation. Large paracoprids were almost non-existent in the pasture with dry clay soil. In the Eucalyptus plantation, the marked reduction in species richness, particularly of telecoprids and paracoprids, the increase in species dominance, and the absence of rare species were clear indicators of an adversely affected environment.

Leaf beetles (Coleoptera: Chrysomelidae) collected during the years 2019–2020 from Murat Mountain located on the border of Kütahya and Uşak provinces, Turkey were studied. A total of 1,166 specimens were examined, and 86 species belonging to 24 genera and five subfamilies (Criocerinae, Cryptocephalinae, Chrysomelinae, Galerucinae, and Cassidinae) were identified. All taxa are newly reported from Murat Mountain, 83 of them are newly recorded from Kütahya Province, and 36 taxa are newly recorded from the Aegean Region of Turkey. In addition, some taxonomic remarks about Aeschrocnemis serbica (Kutschera, 1860) and Cryptocephalus pygmaeus vittula Suffrian, 1848 are provided and discussed with supporting images. The abundance of chrysomelids occurring in the study area by sampling months and their distributions with respect to different altitude ranges were evaluated as well.

One hundred and eighty-four species of Elateridae in 54 genera are recorded from the state of Montana, representing an increase of 92 species from the 93 species recorded from previously published literature. Distribution within Montana is reported by county and includes 1,724 individual county records. EstimateS® was used to determine inventory completeness and predict the probable number of species expected in the state, which uses a Chao1 estimator. The Chao1 estimator mean predicts another 13 species remain to be discovered in the state. Selected genera are also provided with taxonomic notes that often highlight areas of potential future research and to highlight taxonomic issues or difficulties. The list also includes recently described genera to help establish limits for these new groups. The species concepts of Aeolus livens (LeConte, 1853) and Aeolus mellillus (Say, 1834) are clarified. A new combination, Megapenthes subtilis (LeConte, 1884), new combination, is proposed here. Specimens previously identified as Ampedus subtilis (LeConte) sensu Brooks 1960 are here identified as Ampedus nigricans Germar, 1834.

Eupiestus rotundifrons Park and Ahn, new species is described from Korea. Adults of the new species were collected under bark and are similar to those of Eupiestus sikkimi Fauvel from China in having a subtriangular head with a curved anterior margin and slightly transverse antennomeres 6–10. However, the new species can be distinguished from E. sikkimi by the slightly constricted superior marginal lines of the pronotum, the slightly concave dorsolateral ridges of the elytra, and the different form and structure of the aedeagus. A description and illustrations of the habitus and diagnostic characters of the new species are provided.

The Coleopterists Society Executive Council and Graduate Student Research Enhancement Award Committee congratulate the following four recipients of this year's awards. We encourage submissions from all eligible graduate student members of The Coleopterists Society. The next call for applications will go out during January 2023, with applications due 1 March 2023. Guidelines are available at: www.coleopsoc.org/society-info/prizes-and-awards/graduate-studentresearch-enhancement-award.