Coleoptera - Science topic

The present study was aimed at localizing the cellulolytic system in the larval gut of Zophobas morio. Quantitative analysis revealed maximum cellulolytic activity in the midgut followed by foregut and hindgut. Additionally, examination of physicochemical characterization showed the highest endogenous cellulase activity of 2250.32 U/mg at 40°C and...

Laboratory bioassays were conducted to assess the efficacy of each entomopathogenic fungus, Beauveria bassiana (Bb), and diatomaceous earth (DE) and their combinations against the red flour beetle, Tribolium castaneum (Herbst) (Tenebrionidae: Coleoptera) on stored wheat (Triticum aestivum L.). The results indicated that the highest concentrations o...

This study aims to explore and improve the understanding of the biodiversity of beetles in the Maamora forest, one of the largest cork oak forests in the world. A survey was carried out over two consecutive years (2021 and 2022), using both active and passive traps. A total of 8247 individuals were collected, representing 256 species, belonging...

A new species of the genus Dropephylla Mulsant & Rey, 1880 is described and illustrated: D. loebli sp. nov. (northeastern Türkiye, Kars). Besides that, new faunistic data for 16 species (Omaliini) from the Western Palaearctic Region are provided. The aedeagus of D. cretica Jászay & Hlaváč, 2006 is illustrated. Several species are recorded from cert...

A new species Allopachria nigrocatta sp. nov. from Guangxi, China is described. New records are provided for the following Allopachria species: A. dudgeoni Wewalka, 2000 and A. weinbergeri Wewalka, 2000 from Zhejiang, and A. yiae Bian, Guo & Ji, 2013 from Guizhou. Additional records are also given for some other Chinese species. The habitus and mal...

The montane cloud forest of northern Ecuador, between 1500–2500 m a.s.l., hosts a high diversity of ground beetles, most of which have a narrow geographic distribution. Fourteen species restricted to this ecosystem are described as new and illustrated: six in the genus Dyscolus Dejean, 1831 (D. fabrefactus sp. nov., D. liebherri sp. nov., D. osseus...

The widespread distribution of microplastics (MPs) in the environment has motivated research on the ecological significance and fate of these pervasive particles. Recent studies have demonstrated that MPs may not always have negative effects, and in contrast, several species of Tenebrionidae beetles utilized plastic as a food source in controlled l...

The poplar bark beetle Trypophloeus binodulus (Coleoptera: Scolytidae) is a key pest of poplar trees (Malpighiales: Salicaceae, genus Populus) across northern Spain. However, among the more than 200 poplar clones available on the market, the clone USA 184-411 has the highest susceptibility to T. binodulus attacks. We tested the hypothesis that comp...

Ceratapion basicorne (Illiger) (Coleoptera: Apionidae), a weevil native to Europe and western Asia, shows promise for enhancing the control of yellow starthistle (Centaurea solstitialis L.), an invasive annual forb in the western U.S. However, a paucity of data on this biocontrol agent’s environmental constraints has made it difficult to assess the...

Für Vorarlberg gibt es bislang keine Studie, die sich ausschließlich dem Arteninventar und der Verbreitung der Coccinellidae widmet. In dieser Arbeit sollen jüngere Nachweise aus der Familie der Coccinellidae ab dem Jahr 2000 bekannt gemacht werden, einerseits aus Forschungsprojekten, die seitens der inatura gefördert wurden, andererseits Zufallsfu...

Aggerbille havai gen. et sp. nov. is described from late Eocene Danish amber. The new genus differs from the genus Triphyllus Dejean, 1821 by antennomeres 9 and 10 longer than wide, pronotum more strongly narrowed toward the apex, and shorter elytra; from the genus Neotriphyllus Lawrence et al., 2014 by its smaller body size, pronotum more strongly...

Melanaphis sorghi (Theobald) (Hemiptera: Aphididae), commonly called the sorghum aphid, is an invasive pest of sorghum (Sorghum bicolor) (L.) in North America. It was first observed in 2013 along the Gulf Coastal Plains ecoregion of Texas, Louisiana (USA), and Mexico, where it quickly established itself as an economically important pest within a fe...

Three new species, Orthocis kompantsevi sp. nov., O. vilhelmseni sp. nov. and O. larssoni sp. nov. are described from late Eocene Danish amber. Orthocis kompantsevi sp. nov. differs from O. linearis (J. Sahlberg, 1901) by a glabrous body, smaller body size and shorter antennomere 10. Orthocis vilhelmseni sp. nov. differs from O. kompantsevi sp. nov...

Here, the endemic species group of the rove beetle Stenus azurescens L. Benick, 1929 in the genus Stenus Latreille, 1797 from the Philippines is reviewed. Six new species are described: S. rolandmuelleri spec. nov. (Negros), S. hamiguitanensis spec. nov. (Mindanao), S. alexi spec. nov. (Mindanao), S. alexeyi spec. nov. (Mindanao), S. circumspector...

In this study, we sequenced and analyzed the mitochondrial genome of the Satanas beetle, Dynastes satanas Moser, 1909, which was intercepted by Chinese Customs during an attempted smuggling operation in 2022. The complete mitochondrial genome is 16,973 bp in length (GenBank accession number: OQ998898) and contains 13 protein-coding genes, 22 tRNAs,...

In the present paper some observations on the biology of Geotrogus michaelis (Sparacio, 2014), an endemic species belonging to the tribe Rhizotrogini from northwestern Sicily (Italy), are provided and the female is described for the first time. This species appears to be typically Autumn crepuscular species, with a short phenology between the begin...

World trade of agriculture commodities continue to grow. This will also result in introduction and establishment of exotic pests into new areas where the pests are absent. The phytosanitary irradiation (PI) treatment of food commodity cause uniform penetration into the commodity, does not have any risks but helpful in killing and inactivating the c...

Bark and ambrosia beetles use trees as hosts, and the preferred host condition—whether healthy, weakened, or dead—varies among beetle species. Though attraction to volatiles from trees under favorable conditions have been well studied in beetles, only a few studies have examined the repulsion of volatiles from trees under unfavorable conditions. We...

Lors de diverses prospections dans la région PACA, principalement avec l'association ICAHP (Inventaire des Coléoptères des Alpes-de-Haute-Provence), nous avons observé à plusieurs reprises le rare Korynetes geniculatus Klug, 1842. Nous ajoutons quelques nouvelles localités, et présentons l'insecte in situ. Abstract: During various surveys in the...

This study presents a comparative analysis of YOLO detection models for the accurate identification of bean leaf diseases caused by Coleoptera pests in natural environments. By using a manually collected dataset of healthy and infected bean leaves in natural conditions, we labeled at the leaf level and evaluated the performance of the YOLOv5, YOLOv...

Résumé : Lors de diverses prospections dans la région PACA, nous avons observé à plusieurs reprises le rare Aplocnemus coeruleatus (Rosenhauer, 1856). Nous faisons part ici de nos quelques observations qui semblent être nouvelles pour cette espèce. Abstract: During various surveys in the PACA region, we observed the rare Aplocnemus coeruleatus (R...

Sur les communes de Limans et de Cereste-en-Luberon, au coeur du Parc Naturel Régional du Luberon (Alpes-de-Haute-Provence), nous avons eu la chance de rencontrer un des rares Coléoptères mythiques de notre faune, attiré en pleine nuit par la lumière de lampes à vapeur de mercure et à ultraviolet , Amorphocephala coronata (Germar, 1817), le seul Br...

738 specimens of Coleoptera Brentidae of the subfamilies Cyphagoginae (tribes Atopobrentini, Cyphagogini, and Stereodermini), Taphroderinae and Trachelizinae (tribes Microtrachelizini and Pseudoceocephalini) from the collections of the Natural History Museum (London, United Kingdom) were studied and identified. Werneradidactus barclayi, new genus,...

Sitophilus zeamais is known as a warehouse pest insect that can cause damage to post-harvest crops by 0.5-2%. Effective control by considering food safety is the use of neem-based pesticides. This study aims to determine the effect of neem-based pesticides on S. zeamais mortality. The study was designed with a Completely Randomized Design (CRD) con...

Epicauta gorhami is a hypermetamorphic insect that mainly forage soybeans during the adult stage. However, the lack of appropriate references hinders our studying of the gene function in E. gorhami. In this study, referring to five computational tools (Ct value, geNorm, NormFinder, BestKeeper and RefFinder), the stability of 10 housekeeping genes (...

Many insects lay their eggs in masses, and larvae generally hatch from each mass more or less synchronously. The present study investigated the mechanisms behind hatching synchrony and the relationship between hatching synchrony and cannibalism in the leaf beetle, Gastrophysa atrocyanea. Eggs kept singly hatched earlier than those kept in groups of...

The Genevan entomologist Frédéric Chevrier (1801-1882) was interested in natural history from an early age and amassed an important collection of Coleoptera which he was forced to sell in 1849 because of financial difficulties. After this he led a quiet life near Nyon in the canton of Vaud (Switzerland), where he began collecting Hymenoptera and pu...

Plant viruses are endocellular, and they multiply inside their host plant cells. Outside of the host cells, they are acellular and cannot multiply and move to their hosts for reproduction. Plant virus use insect vectors to transmit and distribute from the infected farm to the next health plant or farms—especially the orders of Hemiptera, Thysanopte...

Predation rates, reproduction, development, and life table parameters of Hippodamia variegata (Goeze) and Adalia fasciatopunctata revelieri (Mulstant) (Coleoptera: Coccinellidae) on black bean aphid, Aphis fabae (Scopoli) (Hemiptera: Aphididae), which causes significant losses in broad bean, Vicia faba (L.) (Fabaceae) plants, were determined accord...

Pest attacks, especially by Sphenophorus levis, are a factor affecting sugarcane production. As the pest’s life habits make chemical control difficult, efforts are focused on finding integrated management alternatives. It is therefore essential to study the biology of S. levis, using artificial diets for rearing the insect in the laboratory. Artifi...

(1) Background: Beetles (Insecta: Coleoptera) are the most diverse order of insects. The beetle species live in many ecosystems around the globe and their roles in ecosystems are very diverse; therefore, it is important to know the local and regional biodiversity. Conservation of the entomofauna in individual macroregions requires effort to study t...

A list is presented of Agrilus species collected during research conducted within the joint program between the Laboratory of Coleoptera of the Museu de Zoologia da Universidade de São Paulo, São Paulo (Brazil) and the Department of Science of the University of Rome 3, Rome (Italy). This paper represents a first contribution of this project and is...

Alternative habitats to predominant corn and soybean fields may help to stem declines of native lady beetles in central North America, but their relative values to native lady beetles have not been directly compared. The goal of this 2-year study was to compare the abundance and species composition of native agrobiont lady beetles among habitats su...

Oulema melanopus L., 1758 (Coleoptera: Chrysomelidae) is one of the significant pests affecting cereal crops in Europe. Its damage is evident in the destruction of leaves during the spring growing season, leading to substantial impacts on both the quantity and quality of the harvested yields. The study aimed to evaluate the extent of leaf surface d...

Se describe e ilustra una nueva especie de Cryptophilus Reitter, 1874 (Coleoptera, Erotylidae) de Tailandia: Cryptophilus palmi sp. nov. Se presenta una clave y datos sobre la distribución geográfica de las especies de Cryptophilus Reitter, 1874 en la región Indo-Birmana.

El cultivo de la caña de azúcar constituye uno de los cultivos agroindustriales de mayor importancia económica en Panamá, y que es afectado por plagas insectiles primarias y secundarias. El objetivo del presente estudio fue evaluar tres técnicas para la captura y la fluctuación poblacional de raspador de la hoja Oediopalpa guerini Baly asociada al...

Se presenta información de las luciérnagas presentes en Tamaulipas, Veracruz, Tabasco, Campeche, Yucatán y Quintana Roo, México, región que se denominó golfo-Caribe. Se provee la diagnosis de las especies presentes en esta región y que no se presentan en trabajos previos, así como una clave taxonómica a subfamilia, tribu y género. Se describe una e...

A significant proportion of forest-dwelling species in boreal forests are saproxylic, i.e., dependent on deadwood. To safeguard deadwood-associated diversity in managed forest landscapes, it is important to understand how substrate preferences and specialization structure saproxylic species communities across different deadwood resource types. In t...

Background Apalochrini is a tribe of the family Melyridae characterised by the shortened pedicel, with 13 genera recorded in China at present. Dicranolaius Champion and Intybia Pascoe of Apalochrini are distributed in Asia and Southeast Asia, with the former genus extending to Australia, but not being found in China. In a recent expedition in the m...

The rapid advancement of high-throughput sequencing has led to a great increase in sequencing data, resulting in a significant accumulation of contamination, for example, sequences from non-target species may be present in the target species’ sequencing data. Insecta, the most diverse group within Arthropoda, still lacks a comprehensive evaluation...

The genus Grouvellinus Champion, 1923 comprises 60 described species distributed across the Oriental and Palearctic regions. Species diversity is very high in mainland China, with 28 recorded species. Here, the results of the aquatic beetle survey in Guizhou Province are presented; they began in 2021, when we collected more than 5000 specimens of r...

The genus Telegeusis Horn is the most diverse of the family Telegeusidae, with 16 described species, most of them distributed in Mexico (13 species). Herein, we describe 4 new species based on material collected from Tamaulipas, Mexico: T. cieloensis sp. nov., T. estebani sp. nov., T. flavafusca sp. nov., and T. luismartinezi sp. nov. Distinguishin...

Glotov S. 2024. Contribution to the knowledge of genus Achenium (Coleoptera: Staphylinidae: Paederinae) in eastern Ukraine.

The Sukhna Wildlife Sanctuary, located in the Shivalik Hills of Chandigarh, India, encompasses several freshwater ecosystems, including ponds, streams, and marshes. The objective of this study is to fill the current information void regarding the populations of aquatic beetles in the sanctuary. During the period from June to September 2023, a compr...

Floor traps were placed in a feed mill in Greece for a period of approx. 13 months to illustrate the relative abundance and distribution of the stored product insects found. More than 20 taxa were found, with most of them belonging to Coleoptera. The most abundant species found were the rice weevil, Sitophilus oryzae (L.), and the granary weevil, S...

Beetles exhibit an extraordinary diversity of brilliant and colourful appearances and optical effects invisible to humans. Their underlying mechanisms have received some attention, but we know little about the ecological variables driving their evolution. Here we investigated environmental correlates of reflectivity and circular polarization in a g...

The species Anthrenus flavidulus reitter, 1889 is redescribed and A. farsicus Kadej & Háva, 2011, is synonymised under the former, based on a thorough comparison of the colour patterns and structures of the antennae, aedeagi and sternites IX of the two species. Thus, the number of valid species belonging to the Palaearctic Anthrenus pimpinellae com...

Throughout the months from May to August 2022, using a black light trap, melolonthid scarabs were sampled in a low deciduous forest area in the coastal region in the Oaxaca state, southeastern Mexico. Within the collected material, specimens of an undescribed species of the genus Phyllophaga Harris, 1827 (s. str.) belonging to the rorulenta species...

New data on Monoxia obesula Blake, 1939 (Coleoptera, Chrysomelidae) in the province of Albacete (Spain)

Beetles are the most species-rich group of animals and harbor diverse karyotypes. Most species have XY sex chromosomes, but X0 sex determination mechanisms are also common in some groups. We generated a whole-chromosome assembly of Tribolium confusum , which has a neo-sex chromosome, and utilize eleven additional beetle genomes to reconstruct karyo...

The first recent finding of the European Earthborer Beetle (Bolbelasmus unicornis) in Slovenia. The female was accidentally found dead in the period 2015-2023 in the vicinity of Radovljica (NW Slovenia) and stored in the educational collection of the Pedagogical Faculty of the University of Ljubljana. The finding opens up the need for systematic re...

Species distributed across wide elevational gradients are likely to experience local thermal adaptation and exhibit high thermal plasticity, as these gradients are characterised by steep environmental changes over short geographic distances (i.e., strong selection differentials). The prevalence of adaptive intraspecific variation in thermal toleran...

A new species of weevil in the tribe Omiini from Tara Mountain, Serbia Omiamima tarensis Pešić & Borovec sp. nov., is described, illustrated, and compared with related species. The presence of an amphigonic population of Omiamima mollina (Boheman) from Serbia is recorded for the first time and facilitated the re-description of the sexual dimorphism...

Detailed description of IIIrd Instar larva and pupa of Phyllognathus dionysius is described along with notes on biology and distribution. Beetles belonging to the family scarabaeidae are economically important as crop pests. Grubs of P. dionysius are polyphagous and known to feed on roots of Jowar, Bajra, Maize, Turmeric, Sugarcane and Paddy while...

Meliponaries are an alternative for the preservation of stingless bee species, in addition to producing raw material for the pharmaceutical and cosmetic industry. The presence of invaders that can cause damage to the integrity of productive areas is something that is frequently reported. The same happens in meliponaries, where bees can have many na...

In order to study regional faunas, one or two methods of studying Coleoptera are often used. However, a comparison of several ways of studying shows that it is more expedient to use more than one of them. Six different methods of catching Coleoptera used in studies of the biodiversity of regional faunas were compared. This research employed pitfall...

Citation: Martínez-Cisterna, D.; Rubilar, O.; Tortella, G.; Chen, L.; Chacón-Fuentes, M.; Lizama, M.; Parra, P.; Bardehle, L. Silver Nanoparticles as a Potent Nanopesticide: Toxic Effects and Action Mechanisms on Pest Insects of Agricultural Importance-A Review. Molecules 2024, 29, 5520. https:// Abstract: Nanotechnology has been a promising plant...

In this contribution, we assess the performance of symbolic regression (SR) when used to model the optical response of biological and bio-inspired structures. To this end, we search for analytical closed-form expressions that model the reflectance spectra related to the Tersina viridis bird’s plumage and the porous structure inspired on the Cyphoch...

Tuber spp. (Ascomycota) forms hypogeous fruiting bodies (truffles) that host many microbial species as well as invertebrates which feed on them. Despite the larvae and adults of Diptera and Coleoptera are commonly found to inhabit truffles, molecular investigations assessing their occurrence are still few and the number of species is probably under...

Chrysomela vigintipunctata (Scopoli, 1763) are a major forest pest of willow, spreading across the temperate forest zone of the Palearctic. As one subspecies of Chrysomela vigintipunctata, Chrysomela vigintipunctata alticola Wang is mainly distributed above 3200 m. However, the morphological characteristics and developmental duration of this high a...

The aim of our work is to determine the importance of habitat features for the selection of the aquatic beetle community. Insects are represented by their general ecological traits such as body size, ecological element and trophic type, which are categorised into four body size ranges, four ecological groups and four trophic types. To determine the...

Background The genus Coccinella is reviewed with seven species found in Pakistan: C. luteopicta (Mulsant, 1866), C. marussii Kapur, 1973, C. iranica Dobzhansky, 1926, C. transversalis Fabricius, 1781, C. septempunctata Linnaeus, 1758, C. transversoguttata transversoguttata Faldermann, 1835 and C. undecimpunctata Linnaeus, 1758. Information on prey,...

Larvae and adults of the Colorado potato beetle (Leptinotarsa decemlineata), a major pest of potato crops, display conspicuous coloration to advertise their toxicity to predators. However, the identity of the toxic compounds remains unclear. Here, we show that larvae and adults release toxic hydrogen cyanide (HCN) from the degradation of mandelonit...

Descriptions of the following three new species of Macrotomoderus Pic, 1901 from continental China are provided: M. blinsteinisp. nov., M. hirsutussp. nov., and M. turpiculussp. nov. The available identification key to the Palaearctic Macrotomoderus species is supplemented and updated.

Aim Quantify potential gains to insect data on the Global Biodiversity Information Facility (GBIF) through further digitisation of natural history collections, assess to what degree this would fill biases in spatial and environmental record coverage, and deepen understanding of environmental bias with regard to climate rarity. Location Afrotropica...

Beetles play a crucial role in the functioning of the forest ecosystems, serving as good bioindicators for conservation. However, knowledge about the distribution and conservation status of beetles in Morocco is still limited. To update and supplement existing information, an inventory of beetles in forest habitats of the Central Plateau was carrie...