Odoiporus longicollis (Marshall, 1930), a major banana pest in the family Curculionidae, primarily infests banana pseudostems. The mitogenomic analysis of O. longicollis and its phylogenetic relationships enhances the available mitogenomic data of Curculionidae and provides valuable resources for the molecular identification, population monitoring, and management of this species. In this study, the complete mitogenome of O. longicollis (16,294 bp) was sequenced for the first time. The circular genome comprises 13 protein-coding genes (PCGs), 22 tRNAs, and two rRNAs, with GC contents of 24.81%. Phylogenetic analysis based on 16 Curculionidae mitogenomes offers novel insights into the evolutionary relationships of O. longicollis.

The checklist comprises 264 species in 122 genera and 10 subfamilies of the family Curculionidae (excluding the subfamilies Scolytinae and Platypodinae) recorded from Sri Lanka. Among these, 175 species are endemic or potentially endemic to Sri Lanka. The checklist includes synonyms, type localities, and species distributions across Sri Lanka, categorized by biogeographic zones and localities where available. The Central Province supports the maximum diversity of Curculionidae followed by the Nuwara Eliya District (94 species), Kandy District (40 species), and Matale District (19 species). The Anuradhapura District in the North Central Province exhibits the third-highest species diversity (23 species) of Curculionidae. Sitophilus linearis (Herbst) (Dryophthorinae: Rhynchophorini) and Rhinoncus paganus Gyllenhal (Conoderinae: Ceutorhynchitae: Phytobiini) are recorded for the first time from Sri Lanka.

The paper includes new data about the species diversity of insects (Coleoptera: Chrysomelidae, Curculionidae) from Lower Prut Biosphere Reserve. A total number of 69 species were revealed, of which 20 leaf beetles and 49 snout beetles or true weevils. The research was carried out in various localities of the Lower Prut Biosphere Reserve Manta (23 species), Brînza (3), Văleni (10), Slobozia Mare (6), Cîșlița-Prut (8) and Giurgiulești (34) during the years 1967-2024. The research demonstrates that the Lower Prut Biosphere Reserve is an area of great importance for the conservation of biological diversity, and research in the reserve needs to be continued

The fossil record reveals palaeoecological interactions between plants and insects. This study describes a singular conifer xylite specimen from the Baltic amber-bearing deposits, with preserved resin ducts and cylindrical insect borings designated as Bivium ichnogen. nov. with Bivium diluviandi ichnosp. nov. The borings, characterized by longitudinal tunnels connected by cross tunnels and chambers, were likely created by xylophagous beetles belonging to the family Curculionidae (subfamily Scolytinae). The associated resin production reflects an adaptive plant response to insect and fungal activity, evidenced by fungal hyphae preserved within the specimen. This work contributes to the knowledge of Baltic amber stratigraphy, and the formation of resin-bearing deposits, and shows, that the wood-boring insects may have been a cause, among others, of resin exudation.

Abstract Biodiversity encompasses the variety of life forms within a specific habitat, including both flora and fauna. Taxonomic studies play a crucial role in understanding biodiversity, particularly for red-listed species that are at risk of extinction but remain poorly studied. This research focuses on the taxonomic and morphological analysis of the seed-weevil species Schelopius planifrons (Fåhraeus, 1840), collected from the palm forests of Ramadi, Iraq. During a malacological exploration, S. planifrons was identified as a species endemic to the Mediterranean region. Detailed taxonomic classification places this weevil in the family Curculionidae and subfamily Entiminae. Morphological studies, both external and internal, were conducted using advanced laboratory techniques, including scanning electron microscopy. Key characteristics, such as the rostrum structure, body shape, and specific patterns of punctuations and scales, were documented, providing a clear differentiation from other weevil species. The unique morphology of S. planifrons, including its compact body, glossy green coloration, and distinctive spiracle and antennal features, were meticulously analyzed. The study also highlights the significance of understanding the habitat and distribution of S. planifrons in Ramadi, Iraq, which contrasts with its traditional Mediterranean range. This research contributes to the broader understanding of weevil biodiversity in Iraq and underscores the importance of taxonomic studies in documenting and preserving lesser-known species. The findings not only expand the knowledge of S. planifrons but also emphasize the need for continued exploration and conservation efforts in ecologically sensitive regions like Iraq.

Abstract Gonipterus platensis Marelli (Coleoptera: Curculionidae) has been detected for the first time in the Caazapá Department, Paraguay. This species is closely related to the eucalyptus snout beetle, which is an invasive pest native to Australia, that causes serious damage to eucalyptus plantations. Gonipterus platensis belongs to a complex of cryptic species (Gonipterus scutellatus species complex) that share morphological similarities, making species differentiation challenging. In addition, oothecae parasitized by Anaphes nitens Girault (Hymenoptera: Mymaridae) were found. This record highlights the importance of conducting further studies on the biology and establishment of G. platensis in Paraguay as well as exploring the potential of biological control using A. nitens as a part of an integrated pest management strategy.

The Eucalyptus snout beetle (Gonipterus sp. n. 2) is a destructive invasive pest of Eucalyptus plantations, responsible for significant defoliation and wood yield losses globally. Native to Australia, this beetle has adapted to thrive on diverse Eucalyptus hosts, overcoming their chemical defences. However, the mechanisms by which Gonipterus tolerates or utilises these plant defence metabolites remain poorly understood. In South Africa, Gonipterus sp. n. 2 poses a significant threat to Eucalyptus plantations by causing extensive defoliation and leading to substantial reductions in growth and wood production. This study investigates the relationship between diet, host Eucalyptus species, and the gut microbiome of Gonipterus sp. n. 2. Using controlled feeding experiments, beetles were reared on artificial, semi-artificial, and natural diets, as well as two Eucalyptus genotypes with distinct secondary metabolite profiles. High-throughput 16S rDNA sequencing and gas chromatography-mass spectrometry (GC–MS) revealed significant shifts in gut bacterial diversity and composition across diets. Natural diets supported the most diverse microbial communities, while artificial diets fostered a homogenised microbiome dominated by opportunistic taxa like Serratia. Host-specific effects were observed in frass microbiota, with substantial biotransformation of monoterpenes into less toxic derivatives. The results highlight the plasticity of Gonipterus gut microbiota, which enables metabolic adaptability and resilience in diverse environments. This microbial flexibility underpins the invasiveness of Gonipterus, emphasising the role of gut symbionts in overcoming host chemical defences. Understanding these interactions offers novel insights for microbiome-targeted pest management strategies, providing a sustainable approach to mitigate the impact of Gonipterus on global Eucalyptus forestry.

This study was conducted to determine the Curculionoidea species on weeds found in non-agricultural areas in Kahramanmaraş Province, Türkiye between 2021 and 2022, weekly from late March-early April until the end of September after the weeds begin to germinate, and at fifteen-day intervals when the weeds start to dry towards the end of September. As a result of this study, one genus belonging to the subfamily Brentidae of the family Apionidae of the superfamily Curculionoidea, eleven genera belonging to the family Curculionidae, Lixinae Schoenherr, 1823, Hyperinae Marseul, 1863, Curculioninae Latreille, 1802, Baridinae Schoenher, 1836, Ceutorhynchinae Bedel, 1881, Entiminae Schoenherr, 1823 subfamilies and fifteen species belonging to these genera were identified. A total of eight species, including Hypera striata (Boheman, 1834), Rhinusa (Gymnaetron) bipustulata (Rossi, 1792), Smicronyx jungermanniae (G. C. Reich, 1797), Aulacobaris picicornis (Marsham, 1802), Baris analis (Olvier, 1790) Gyllenhal, 1837, Glocianus distinctus (C. Brisout, 1870) and Rhopalapion longirostre (Olivier, 1807), are new records for Kahramanmaraş Province. In addition, fifteen weed species were identified as new host plants for the identified Curculionoidea species.

This study was conducted to determine the Curculionoidea species on weeds found in non-agricultural areas in Kahramanmaraş Province between 2021 and 2022, weekly from late March early April until the end of September after the weeds begin to germinate, and at fifteen-day intervals when the weeds start to dry towards the end of September. Studies were carried out. As a result of this study two genera belonging to the family Curculionidae, Lixinae Schoenherr, 1823 subfamily of the superfamily Curculionoidea, and fourteen species belonging to these genera. Larinus cinerascens Capiomont, 1874, one of the identified species, is a new record for the Curculionoidea fauna of Türkiye. A total of five species, including Lixus algirus L., Lixus vilis (Rossi, 1790), Larinus cinerascens Capiomont, 1874, Larinus hedenborgi Boheman, 1845, Larinus turbinatus Gyllenhal, 1835, are new records for Kahramanmaraş Province. In addition, twelve weed species were identified as new host plants for the identified Curculionoidea species.

BackgroundIn the present study, two newly recorded species: Maximus absolutus (Faust, 1904) and Cyphocleonus cenchrus as reported (Pallas 1781), are added to the Egyptian fauna of tribe Cleonini (Family Curculionidae, Subfamily Lixinae). Keys to the Egyptian species of the two genera are given, and the genitalia of the two species Maximus absolutus and M. vagus are illustrated and photographed for the first time. In addition, the type information, synonymy and distribution are also given.ResultsTwo genera of tribe Cleonini, Cyphocleonus Motschulsky and Maximus Alonso-Zarazaga & Lyal, were studied depending on the specimens deposited in the main Egyptian Reference Collections and those mentioned in the literature. This investigation marks the first record of the two species Maximus absolutus (Faust) and Cyphocleonus cenchrus (Pallas) in Egypt, accompanied by detailed diagnoses for these newly recorded species. Female terminalia and genitalia of two species of the genus Maximus, M. absolutus and M. vagus, were dissected and photographed to facilitate the diagnosis of the females of these species.ConclusionsTwo species Cyphocleonus cenchrus (Pallas) and Maximus absolutus (Faust) are recorded for the first time from Egyptian fauna. Also, the female genitalia of Maximus absolutus (Faust) and M. vagus Bedel are dissected and photographed for the first time.

Chitin, the second most abundant biopolymer after cellulose, is an important resource for biosourced materials. The global demand for chitin is rapidly increasing, however, the majority of industrial chitin is sourced from crustacean shells, which may be less accessible in regions without seafood waste. Therefore, it is crucial to explore alternative chitin sources, such as those derived from beetles and other arthropods. This study investigated chitin extraction from nine species of Curculionidae (true weevils), which are recognized as crop pests. The extraction process and yields were described, and the isolated chitin was characterized by SEM, IR spectroscopy, elemental analysis, XRD, and ash and water content measurements. This work highlights the potential of Curculionidae as an alternative chitin source.

Goal. Monitoring the phytosanitary status and determining the species composition of phytophages on decorative coniferous and deciduous plants. Methods. Field — determination of the species composition of pests and the dynamics of the number of main species; laboratory — determination of pests selected on experimental plots. Research was conducted in accordance with generally accepted methods in entomology and plant protection. Results. In the industrial plant nursery of open soil «Megaplant» located in the Kyiv region, Fastiv district, village The monitoring of the phytosanitary state of ornamental plant plantations was carried out in Trilys. The natural saturation of harmful organisms and the level of their harmfulness were studied. Conclusions. It has been established that plants in industrial nurseries in open ground are damaged by a large number of insects and mites. The most dangerous and widespread on conifer ornamental plants were 8 pests from the following families coccids (Coccidae), bark beetles (Scolytidae), adelgids (Adelgidae), snout beetles (Curculionidae) and spider mites (Tetranychidae); 9 most harmful species from the following families were noted on decorative leafy plants: crambid Snout Moths (Crambidae), mealybugs (Pseudococcidae) and аrmored scales or diaspidids (Diaspididae), eriophyidae mites (Eriophyidae), aphids (Aphididae), snout beetles (Curculionidae), scarab beetles (Scarabaeidae).

Gonipterus platensis (Marelli, 1926), is a beetle that belongs to the family Curculionidae, a phytophagous species within the genus Eucalyptus. It is native to Australia, where it is not considered a pest due to the presence of biological controllers. In Colombia, eucalyptus trees are the second exotic species with the largest planted area, and because in 2016 was recorded the presence of G. platensis in the country, efforts have been made to study and determine the potential damage that this species can cause in plantations through studies of its feeding preferences and oviposition, among others. The present study aims to determine the preference of G. platensis for the three most planted commercial eucalyptus species in the country: Eucalyptus grandis W.Hill ex Maiden, E. urophylla S.T. Blake, and the hybrid E. grandis W.Hill ex Maiden × E. urophylla S.T. Blake (E. urograndis). An experiment was conducted using a multiple-choice design to assess feeding and oviposition preference. Two assays were carried out: one with seedlings and the other with an olfactometer. The present study reveals that G. platensis has a feeding preference for E. grandis, followed by E. urophylla, and to a lesser extent, the hybrid species E. urograndis. Furthermore, G. platensis is capable of ovipositing in all three eucalyptus species studied without making any differentiation.

The article reports on studies (2011-2022) monitoring harmful organisms in the ecosystem of the rose garden of the Main Botanical Garden of the Russian Academy of Sciences. The studies yielded data on the detection of pathogens and pests, as well as the phenotypic manifestation of pathologies and lesions. A total of 21 species of pathogens and 16 species of phytophages were identified. The species composition of harmful organisms in the ecosystem of the rose garden was defined. It is shown that at the initial stage (2011- 2013) of ecosystem establishment, no external signs of viral diseases were observed, and a low level of fungal infections was noted. The development of such harmful pathogens as Peronospora sparsa Jacz., Sphaerotheca pannosa Lev., Phragmidium disciflorum James, and Ph. tuberculatum Mull. was controlled by culling plants of susceptible varieties. The predominant pathogens included Marssonina rosae (Lib.) Died., Phyllosticta rosae Desm., and Septoria rosae Desm., and the susceptibility of specific varieties to these pathogens was established. The populations of pathogens causing spot anthracnose (Sphaceloma rosarum Pass.), ascochyta leaf spot (Ascochyta rosicola Sacc.), and cercospora leaf spot (Cercospora rosicola Pass.) were slightly less common. A wide range of signs of viral infections was identified. Nine viruses belonging to five genera were detected. The frequency of their occurrence was analyzed, and the most common viruses were identified: Prunus necrotic ring spot ilarvirus, Apple mosaic ilarvirus, Tobacco ring spot nepovirus, and Arabis mosaic nepovirus. The species diversity of phytophages was noted: leaf beetles, snout beetles, leafroller moths, sawflies, blossom weevils, earwigs, moths, leafhoppers, aphids, and true bugs. It was found that damage to plants by a range of pests reached only an average level, except for individual varieties (Red Blanket and Prosperity). In general, the phytosanitary assessment of the rose gene pool of the garden according to the phytosanitary monitoring and integrated detection revealed a wide range of parasite complexes: fourteen types of pathogenic complexes, four types of entomological complexes, and five types of entomopathogenic complexes. The tactical and basic directions for control of harmful organisms in the ecosystem of the rose garden are discussed.

The subfamily Molytinae (Coleoptera: Curculionidae), being the second largest group within the family Curculionidae, exhibits a diverse range of hosts and poses a serious threat to agricultural and forestry industries. We used 1,290 cytochrome c oxidase subunit I (COI) barcodes to assess the efficiency of COI barcodes in species differentiation and uncover cryptic species diversity within weevils of Molytinae. The average Kimura 2-parameter distances within species, genus, and subfamily were 2.90%, 11.0%, and 22.26%, respectively, indicating significant genetic differentiation at both levels. Moreover, there exists a considerable degree of overlap between intraspecific (0%-27.50%) and interspecific genetic distances (GDs; 0%-39.30%). The application of Automatic barcode gap discovery, Assemble Species by Automatic Partitioning, Barcode Index Number, Poisson Tree Processes (PTP), Bayesian Poisson Tree Processes (bPTP), and jMOTU resulted in the identification of 279, 275, 494, 322, 320, and 279 molecular operational taxonomic units, respectively. The integration of 6 methods successfully delimited species of Molytinae in 86.6% of all examined morphospecies, surpassing a threshold value of 3% GD (73.0%). A total of 28 morphospecies exhibiting significant intraspecific divergences were assigned to multiple MOTUs, respectively, suggesting the presence of cryptic diversity or population divergence. The identification of cryptic species within certain morphological species in this study necessitates further investigation through comprehensive taxonomic practices in the future.

The red palm weevil Rhynchophorus ferrugineus (Olivier, 1790), which belongs to the family Curculionidae, order Coleoptera, is one of the most important palm pests, which leads to heavy losses in date palms. In the last few years, it has been recorded in Iraq, from Safwan city south of Iraq, where it was detected on date palm trees (Phoenix dactylifera L, Arecales: Arecaceae). In the current study, specimens of adult weevils were collected from infested date palms (Phoenix dactylifera), that showed signs of infection in Safwan district, south of Basra province. The results of the investigation showed the presence of phoretic mites associated with the red palm weevil Rhynchophorus ferrugineus (Olivier, 1790). Two genera of Uropodid mites, deutonymph, were attached by anal pedicel to body parts of adult red palm weevils. They were collected and identified as Centrouropoda (Uropodidae), and Uroovbovella (Urodinychidae), according to accurate taxonomic keys. The differentiation between two genera of mites was studied. The deutonymphs were examined and photographed by an AM Scop camera installed on a light microscope, and the insects were photographed by a LEICA microscope. The infestation symptoms were illustrated with pictures.

The Eucalyptus snout beetles, which belong to the Gonipterus scutellatus species complex, cause heavy damage to Eucalyptus spp. worldwide. The species was reported in Antioquia, Colombia for the first time in 2016, threatening more than 115,000 ha of planted Eucalyptus spp. Elsewhere, its damage has been controlled using Anaphes spp. as classical biological control, but Anaphes spp. are not available in Colombia, where there are no documented control methods for this species to date. We identified the Gonipterus species using molecular methods and isolated entomopathogenic fungi from naturally infected beetles collected from the current distribution area in Colombia. We characterised the fungal isolates, selecting the best to develop a biological control agent. We considered insecticidal activity, UV-B radiation tolerance, yield, germination, and enzyme activity of conidia in making our selection. We confirmed the presence of G. platensis in Colombia, with adults naturally infected by Beauveria spp. and Metarhizium spp. From the isolated native fungi, M. brunneum (CA-3), M. robertsii (RI-1), B. bassiana (CA-1) and (CA-2), B. pseudobassiana (SP-1) were identified. We found remarkable differences in response to different variables between the selected isolates and SP-1 and CA-3 were the most virulent. The SP-1 isolate stood out from the rest for being the most tolerant to UV-B radiation, alkaline media, and low temperatures, germinating faster and producing elevated levels of lipases, chitinases, and proteases. The identified promising native fungus isolate, naturally occurring on field individuals, could be used to develop a biopesticide for controlling G. platensis in Eucalyptus spp. plantations in Colombia.

Eucalypts (Eucalyptus spp.) early established outside their native range have typically benefited from a pest-free environment. However, over time, due to the circulation of people and goods, several Australian insects that attack eucalypts reached the regions where these trees are commercially planted. In Europe, Portugal is the country with the largest area planted with eucalypts (mostly Eucalyptus globulus), covering almost 850,000 hectares. Thirteen insect species native from Australia have already been found in Portugal affecting eucalypts. From these, the snout beetle (Gonipterus platensis), the bronze bug (Thaumastocoris peregrinus), the longhorned borers (Phoracantha semipunctata and P. recurva), and the tortoise beetle (Trachymela sloanei) are the most important pests. This work aims to review the status of these pests, their impacts, and the success of the management strategies that have been employed. Future challenges are also discussed.

Anagonia lasiophthalma (Diptera: Tachinidae): Survey, identification, and biological traits of a new biological control agent of the Eucalyptus snout beetle, Gonipterus platensis (Coleoptera: Curculionidae)

Screening five local entomopathogenic nematode species for their virulence against pupae of the Eucalyptus snout beetle, Gonipterus sp. n. 2, under laboratory conditions