Bulletin of Entomological Research最新文献

{"title":"First report of the invasive mealybug <i>Ferrisia dasylirii</i> (Hemiptera: Coccomorpha: Pseudococcidae) from China based on integrated taxonomy.","authors":"Huijiao Lin, Shao-Bin Huang, Zhi-Xuan Liu, Hai-Jie Huang, Hua-Yan Chen","doi":"10.1017/S000748532610100X","DOIUrl":"https://doi.org/10.1017/S000748532610100X","url":null,"abstract":"<p><p><i>Ferrisia dasylirii</i> (Cockerell) (Hemiptera: Coccomorpha: Pseudococcidae) is a polyphagous mealybug species and native to North America, but has spread to Asia and Africa. In this study, we report <i>F. dasylirii</i> for the first time from China using an integrated taxonomy approach combining morphological characters and molecular analyses of the mitochondrial <i>cytochrome oxidase subunit 1</i> gene. It was found on 12 tropical fruit species in Hainan Province: Annonaceae: <i>Annona squamosa</i> L. and <i>A. squamosa</i> 'Purple'; Myrtaceae: <i>Eugenia brasiliensis</i> Lam. and <i>Psidium guajava</i> L.; Malvaceae: <i>Theobroma cacao</i> Linn.; Lecythidaceae: <i>Lecythis pisonis</i> Cambess.; Sapotaceae: <i>Pouteria campechiana</i> (Kunth) Baehni and <i>P. sapota</i> (Jacq.) H.E.Moore & Stearn; Rubiaceae: <i>Coffea liberica</i> W. Bull ex Hiern; Cunoniaceae: <i>Davidsonia pruriens</i> F. Muell; Arecaceae: <i>Areca catechu</i> Linn.; Musaceae: <i>Musa nana</i> Lour.; Malpighiaceae: <i>Malpighia emarginata</i> Sesse & Noc.ex DC.; and Phyllanthaceae: <i>Phyllanthus emblica</i> Linn. This record increases the known geographic range of <i>F. dasylirii</i> and underscores the importance of combined morphological and molecular approaches for accurate mealybug identification.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-9"},"PeriodicalIF":1.6,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147670690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimised triangular pheromone traps for multi-season monitoring of <i>Tuta absoluta</i> in protected tomato systems.","authors":"Heng Chen, Ying Sun, Jiahong Zuo, Xiaoyuan Chen, Zhenxi Wu, Guohua Chen, Weijun Han, Xiujuan Wan, Jinlong Zhang, Xiaoming Zhang","doi":"10.1017/S0007485326100935","DOIUrl":"https://doi.org/10.1017/S0007485326100935","url":null,"abstract":"<p><p>The invasive tomato leafminer <i>Tuta absoluta</i> has become a major constraint to tomato production worldwide, and intensive insecticide use against this pest increases production costs and environmental risks. Robust and cost-effective monitoring tools are therefore essential to support integrated pest management (IPM) and reduce pesticide dependence. We systematically evaluated the performance of triangular pheromone traps under different deployment parameters and protected cultivation systems, aiming to develop a standardised monitoring protocol for <i>T. absoluta</i> in tomato crops. We compared triangular traps, planar traps, and colour sticky boards (blue, yellow, and white), quantified the effects of trap position (basal, mid-canopy, and apical) and diel time window (08:00-12:00, 12:00-16:00, 16:00-20:00, 20:00-08:00), and tested three protected cultivation systems over two consecutive seasons. Blue triangular traps deployed at the basal position consistently outperformed other configurations, with mean catches exceeding 40 adults per trap - more than twice those at mid-canopy or apical placements. Night-time deployment (20:00-08:00) captured over 60% of the total daily catch, confirming the predominantly nocturnal activity of <i>T. absoluta</i>. Across three cultivation systems and two seasons, blue triangular traps maintained stable monitoring efficiency and consistently outperformed yellow and white traps, while achieving a better balance between target catches and non-target interception than planar traps. These findings demonstrate that optimising trap colour, placement height, and deployment period substantially enhances <i>T. absoluta</i> monitoring. The optimised triangular trap configuration provides a practical, low-cost tool for precision IPM in protected tomato systems, with clear potential to support reductions in insecticide use and associated environmental contamination.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-7"},"PeriodicalIF":1.6,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147670664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biological degradation of low-density polyethylene by <i>Tenebrio molitor</i> L. larvae, demonstrated through ultramicroscopy and chemical analyses.","authors":"Sakshi Singh, Istkhar Rao, Parul Chauhan","doi":"10.1017/S0007485326100959","DOIUrl":"https://doi.org/10.1017/S0007485326100959","url":null,"abstract":"<p><p>Low-density polyethylene (LDPE), a common polymer, resists environmental degradation because of its high molecular weight and hydrophobic nature. Although microbial agents have shown some potential for plastic biodegradation, their effectiveness is often limited. Recent studies have shown that insect larvae may also be promising candidates for the biological breakdown of plastic waste. This study aimed to quantify the biodegradation of commercial LDPE sheets by <i>Tenebrio molitor</i> (mealworm) larvae over 21 days. The extent of degradation was assessed by gravimetric analysis and by examining physical, morphological, and chemical changes in the polymer. Larval frass was analysed using Fourier-transform infrared spectroscopy (FTIR) and gas chromatography-mass spectrometry (GC-MS) to identify metabolic by-products. The results showed that <i>T. molitor</i> larvae actively consumed and degraded LDPE sheets, leading to an average weight reduction of 34.28%. Scanning electron microscopy revealed significant surface deterioration, characterised by pits and cavities. FTIR analysis of frass indicated cleavage of polymer chains and oxidation, evidenced by the disappearance of C-H stretching bands and the appearance of new hydroxyl and carbonyl groups. GC-MS analysis detected several intermediate compounds, such as esters, alkanes, and fatty acids, confirming the metabolic breakdown of LDPE. This study supports the potential of <i>T. molitor</i> as an effective biological agent for degrading LDPE plastic.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-13"},"PeriodicalIF":1.6,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147670737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of long-term rearing of <i>Euseius scutalis</i> (Acari: Phytoseiidae) on cattail pollen on its functional and numerical responses fed on <i>Tetranychus turkestani</i> (Acari: Tetranychidae).","authors":"Zahra Gorji, Parviz Shishehbor, Farhan Kocheili, Elham Riahi","doi":"10.1017/S0007485325100588","DOIUrl":"10.1017/S0007485325100588","url":null,"abstract":"<p><p>Predatory mites are important biological control agents of spider mites in various crops. Long-term mass rearing on alternative foods, such as plant pollen, may affect their predatory efficiency, but data on <i>Euseius scutalis</i> are scarce. Therefore, this study aimed to evaluate whether long-term rearing of <i>E. scutalis</i> on cattail pollen influences its functional response when fed on <i>Tetranychus turkestani</i>. Functional and numerical responses of the predatory mite <i>E. scutalis</i> reared on cattail (<i>Typha latifolia</i>) pollen over 30 generations on different densities (2, 4, 8, 16, 32, 64, and 128) of <i>T. turkestani</i> were evaluated. The results indicated a type II functional response for <i>E. scutalis</i> on <i>T. turkestani</i> in all generations (G1, G10, G20, and G30) tested. The attack rate (<i>a</i>) of <i>E. scutalis</i> increased as the number of generations increased. The handling time decreased as the number of generations increased from G1 (0.330 h) to G10 (0.318 h), then increased in G20 (0.572 h) and then decreased again in G30 (0.385 h). In G1 and G30, the number of eggs deposited by the predator increased as prey density increased. However, in G10 and G20, egg deposition increased up to 64 prey and then slightly decreased at 128 prey. The results indicated that the quality of <i>E. scutalis</i> did not lessen against <i>T. turkestani</i> after different periods of rearing on cattail pollen. Based on this study, we recommend cattail pollen as a good candidate for the large-scale rearing of <i>E. scutalis</i> for use in biological control programmes against <i>T. turkestani</i>.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"204-210"},"PeriodicalIF":1.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145707450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Galling of genotypes of Eucalyptus camaldulensis resistant by Leptocybe invasa is unlikely to be altered by edaphic factors but is not immune to climatic influences - CORRIGENDUM.","authors":"Beryn Achieng Otieno, Juha-Pekka Salminen, Martin James Steinbauer","doi":"10.1017/S0007485326100881","DOIUrl":"https://doi.org/10.1017/S0007485326100881","url":null,"abstract":"","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1"},"PeriodicalIF":1.6,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147580693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The temperature increase due to climate change will not favour <i>Cydalima perspectalis</i> in southern Europe.","authors":"Matilde Eizaguirre, Carmen López","doi":"10.1017/S0007485326100911","DOIUrl":"https://doi.org/10.1017/S0007485326100911","url":null,"abstract":"<p><p>Native boxwood across Europe has been destroyed by the invasive moth <i>Cydalima perspectalis</i>. To date, climatic conditions and natural enemies have not been able to contain the pests. Increases in temperature due to climate change (CC) may affect insect development and voltinism, with species-specific effects. Its spread across European countries indicates that the expansion of <i>C. perspectalis</i> is not limited by cold winters. However, in southern Europe, rising maximum temperatures can affect pests and their host plants. Despite this, the effects of high temperatures on herbivorous pests have been studied far less extensively than those of low temperatures. Our results show that elevated temperatures accelerate egg development but prolong larval development, reduce adult longevity and fertility, and substantially increase mortality across the egg, larval, and pupal stages. These findings indicate that spring-summer temperatures in the Mediterranean Basin are approaching the upper thermal limits of this species and that further warming is unlikely to facilitate its expansion in this region. Although high temperatures did not reduce diapause induction, they increased larval mortality, and field monitoring showed that altitude, more than thermal time, dominated the patterns of first-flight emergence. Habitat orientation (North or South) may further mediate pest-host coexistence. Overall, this study contributes to the literature by clarifying how this pest responds to the warming conditions associated with CC in southern Europe.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-11"},"PeriodicalIF":1.6,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147572608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of area-wide population structure between <i>Orius strigicollis</i> and <i>Orius sauteri</i> (Hemiptera: Anthocoridae).","authors":"Lan Kong, Norihide Hinomoto","doi":"10.1017/S000748532610090X","DOIUrl":"https://doi.org/10.1017/S000748532610090X","url":null,"abstract":"<p><p>This study investigated the population structure of predatory bugs belonging to the genus <i>Orius</i> (Hemiptera: Anthocoridae), with a specific focus on <i>O. strigicollis</i> and <i>O. sauteri</i>. These insects are promising candidates for biological pest control in agriculture. <i>O. strigicollis</i> has limited distribution in the warmer coastal areas of the western regions of Japan, whereas <i>O. sauteri</i> is more widely distributed. We conducted genetic analyses using microsatellite markers and an isolation-by-distance analysis to understand the potential differences between these two species. We studied 494 individuals from 9 populations in the Chubu region of Japan, where they are sympatrically distributed. A significant positive correlation was observed between geographical distance and genetic differentiation (fixation indices; <i>F</i>_ST) in <i>O. strigicollis</i>, suggesting limited gene flow between populations. Contrastingly, no significant correlation was observed in <i>O. sauteri</i>, indicating a higher gene flow and larger population size. Thus, these results contribute to the development of biological control strategies for these species.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-7"},"PeriodicalIF":1.6,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147509787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Predicting the potential distribution range of <i>Oecleopsis sinicus</i> Jacobi, 1944, an Asian endemic planthopper species, under CMIP6 climate change using the MaxEnt model.","authors":"Muhammad Aqib Idrees, Qin Daozheng","doi":"10.1017/S0007485326100868","DOIUrl":"https://doi.org/10.1017/S0007485326100868","url":null,"abstract":"<p><p><i>Oecleopsis sinicus</i> (Jacobi, 1944) (Hemiptera: Cixiidae) is a serious phytophagous pest first recorded as an agricultural pest in China. This species has now expanded its distribution within its native Asian range, resulting in significant economic losses in agricultural production and posing potential threats to some important crops and vegetables in many countries. To determine the intrinsic connection between climate change and the geographical expansion of this pest, an optimised MaxEnt model was applied to examine the predicted geographic range of <i>O. sinicus</i> under current and projected climate scenarios (2041-2060, 2061-2080, and 2081-2100), using CMIP6 projections (SSP126 and SSP585). The model showed high predictive accuracy (area under the curve (AUC) = 0.940). By the end of the 21st century (2081-2100), MaxEnt modelling forecasts a significant expansion of suitable habitat for <i>O. sinicus</i> under both climate scenarios. The total suitable area is projected to be 511.7527 × 10⁴ km² under the SSP126 scenario and 570.9165 × 10⁴ km² under the SSP585 scenario. This represents an increase of 44.59% and 49.7%, respectively, compared to the present. The distribution of this species is predicted to shift and expand northwestward across Asia under all scenarios, with the most pronounced increase projected for East Asia under SSP585 (85.1% expansion during 2041-2060). This study can provide a foundation for pest monitoring, early warning measures, and quarantine strategies in high-risk countries.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-10"},"PeriodicalIF":1.6,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147503300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DNA barcoding-assisted classification of the genus <i>Actias</i> (Lepidoptera: Saturniidae).","authors":"Xin Fu, Su-Yang Bai, Long Chen, Chen Lv, Yu-Xuan He, Yu-Ping Li, Yan-Qun Liu","doi":"10.1017/S0007485326100893","DOIUrl":"https://doi.org/10.1017/S0007485326100893","url":null,"abstract":"<p><p>The classification of the species in the genus <i>Actias</i> Leach, 1815 (Lepidoptera: Saturniidae) is challenging because many species have a highly similar morphology, while differences in database classification standards also provoke identification problems. To help resolve these issues, we conducted an integrative analysis of 741 cytochrome oxidase subunit I (COI) barcode sequences available by combining phylogenetic reconstruction, population genetic (Fst) metrics, and biogeographic data. This approach delineated 44 molecular operational taxonomic units (MOTUs) and established a genus-specific, empirical genetic distance threshold of 2.05% from a baseline of 29 morphologically validated MOTUs. These 29 MOTUs/morphospecies were then utilized to assess the interspecific genetic distance gap of this genus and further used as the species-level genetic distance to delimit the remaining morphospecies. Applying this multi-evidence framework allowed us to propose a significant re-evaluation of species boundaries, including several taxonomic reclassifications, and to generate the molecular inventory for <i>Actias</i>. Our study illustrates the power of an integrated molecular approach to resolve complex taxonomic issues and provides a robust, data-driven foundation for future research on <i>Actias</i>.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-17"},"PeriodicalIF":1.6,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147503275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multigenerational feeding increases adaptability to alternative hosts by shifting protective enzyme profiles and oviposition preference in maize-strain <i>Spodoptera frugiperda</i>.","authors":"Yanli Yue, Yusheng Zhang, Hongxing Chen, Yue Gu, Wenxing Cao, Jun-Jie Gu","doi":"10.1017/S000748532610087X","DOIUrl":"https://doi.org/10.1017/S000748532610087X","url":null,"abstract":"<p><p>Host plant adaptability drives the ecological plasticity and global expansion of <i>Spodoptera frugiperda</i> (J.E. Smith, 1797). However, the mechanisms underlying the long-term adaptation of its maize ecotype to alternative hosts remain unclear, hindering host-shift risk predictions. We evaluated the host-shift risk of the maize ecotype of <i>S. frugiperda</i> across four generations of continuous rearing on maize (<i>Zea mays</i> L.), wheat (<i>Triticum aestivum</i> L.), rice (<i>Oryza sativa</i> L.), and green bristlegrass (<i>Setaria viridis</i> (L.) P. Beauv.) by analyzing biological performance, feeding and oviposition behaviours feeding/oviposition preferences, and protective enzyme dynamics. Prolonged monophagous feeding significantly accelerated developmental cycles across generations. Wheat emerged as the most suitable host under laboratory conditions, shortening immature stages to 22.86 d (F₃) and increasing pupal weight by 40.7%, whereas <i>S. viridis</i> resulted in the lowest fitness, with 32.31-d immature period and 59.33% survival rate (F₄). Larval feeding and adult oviposition preferences consistently aligned with multigenerational feeding on the same host. Enzymatic profiling showed maize-fed larvae maintained the lowest catalase (CAT), peroxidase (POD), and superoxide dismutase (SOD), whereas <i>S. viridis</i>-reared larvae exhibited peak enzyme activities. Notably, adaptation to wheat was associated with reduced enzymatic stress responses, with CAT and POD activities decreasing by 21.8% and 17.5%, respectively, from F₁ to F₃, indicating physiological acclimation. These findings suggest that multigenerational feeding can enhance population fitness and promote host preference through physiological and behavioural plasticity. This laboratory study indicates the potential for the maize ecotype to pose threat to wheat production, providing a basis for managing.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-10"},"PeriodicalIF":1.6,"publicationDate":"2026-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147484654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}