Bulletin of Entomological Research最新文献_第2页

Inferring tephritid fly pupal development stage using non-invasive near infrared imaging and machine learning classification. 利用非侵入性近红外成像和机器学习分类技术推断瘟蝇蛹发育阶段。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2025-09-08 DOI: 10.1017/S0007485325100448

Guadalupe Córdova-García, Horacio Tapia-McClung, Dinesh Rao, Diana Pérez-Staples

{"title":"Inferring tephritid fly pupal development stage using non-invasive near infrared imaging and machine learning classification.","authors":"Guadalupe Córdova-García, Horacio Tapia-McClung, Dinesh Rao, Diana Pérez-Staples","doi":"10.1017/S0007485325100448","DOIUrl":"https://doi.org/10.1017/S0007485325100448","url":null,"abstract":"Insect pupae change morphologically (e.g., pigmentation of eyes, wings, setae and legs) during the intrapuparial period. Knowledge on the physiological age of pupae and their emergence are important parameters for the control of agriculturally important Tephritid flies. Traditional methods for determining age require dissecting the puparium, thus killing the specimen. Therefore, non-invasive and more ethical methods to determine physiological age are needed, especially if individual pupae are followed throughout their development. Furthermore, machine learning methods can be employed to detect pupal age, thereby reducing human-bias. Here, we studied the intrapuparial development of the Mexican fruit fly, Anastrepha ludens (Diptera: Tephritidae), using non-invasive near-infrared (NIR, 850-1100 nm) images. We photographed pupae and subsequently analysed the images with machine learning algorithms. The intrapuparial period lasted between 17 and 19 days at a constant temperature of 26°C, and 75-80% relative humidity. No visible structures were observed between days 1 and 3. The phanerocephalic pupa was observed on day 4. The darkening of the eyes began on day 12. Wing pigmentation occurred on days 13 and 14, and the legs and setae on the thorax became melanized on day 15. A convolutional neural network correctly identified the physiological age range of intrapuparial development stages with an average accuracy of 71.77%. This model using NIR imaging allows the determination of a physiological age range without arresting the development of the pupae, and an estimation of the viability of pupae without waiting for the emergence of the adult.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-7"},"PeriodicalIF":1.6,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145013775","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}

引用次数: 0

Ecological dynamics of true bugs (Hemiptera: Pentatomidae, Acanthosomatidae, and Coreidae) and associated egg parasitoids (Hymenoptera) in an Alpine region of Italy. 意大利阿尔卑斯地区真蝽（半翅目：蝽科、棘蝽科和茧蜂科）及其相关卵寄生蜂（膜翅目）的生态动态。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2025-09-05 DOI: 10.1017/S0007485325100412

Martina Falagiarda, Francesco Tortorici, Sara Bortolini, Martina Melchiori, Manfred Wolf, Luciana Tavella

{"title":"Ecological dynamics of true bugs (Hemiptera: Pentatomidae, Acanthosomatidae, and Coreidae) and associated egg parasitoids (Hymenoptera) in an Alpine region of Italy.","authors":"Martina Falagiarda, Francesco Tortorici, Sara Bortolini, Martina Melchiori, Manfred Wolf, Luciana Tavella","doi":"10.1017/S0007485325100412","DOIUrl":"https://doi.org/10.1017/S0007485325100412","url":null,"abstract":"True bugs (Hemiptera: Acanthosomatidae, Coreidae, and Pentatomidae) include harmful crop pests affecting global agriculture, with different species displaying distinct optimal conditions for development and using different habitats. Over a 2-year period, this research investigates how habitat variation and altitude can influence the species composition of true bugs and their egg parasitoids in South Tyrol (North Italy), unveiling different trends in their population and diversity across habitats: apple orchards, urban areas, and forests. A total of 25 true bug species were sampled. Urban environments hosted the highest bug abundance, predominantly driven by the invasive Halyomorpha halys, while forests showed a higher prevalence of native species such as Pentatoma rufipes and Palomena prasina. Altitude significantly influenced species composition, with H. halys and P. rufipes abundance negatively and positively correlated with altitude, respectively. A total of 12 parasitoid species (Hymenoptera: Eupelmidae, and Scelionidae) emerged from the field-collected bug eggs, including the exotic Trissolcus japonicus, predominantly associated with H. halys in urban areas. Native parasitoids exhibited higher parasitism rates on native bug species, indicating co-evolutionary relationships. The results give an insight into the ecological dynamics of local true bug species and their egg parasitoids, and highlight the value of natural and urban areas for conserving both hemipteran and parasitoid species richness and abundance.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-14"},"PeriodicalIF":1.6,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144999762","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}

引用次数: 0

Cold vs. CO₂: anaesthetic effects on insect antennal functionality. 冷与二氧化碳：麻醉对昆虫触角功能的影响。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2025-08-29 DOI: 10.1017/S0007485325100345

Claire Marcout, Benoit Lapeyre, Eric Darrouzet

引用次数: 0

Optimising reference gene selection in unravelling Begomovirus-induced autophagy expression in Bemisia tabaci (Hemiptera: Aleyrodidae). 优化内参基因选择以揭示begomovirus诱导的烟粉虱（半翅目：粉虱科）自噬表达。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2025-08-27 DOI: 10.1017/S0007485325100394

N R Prasannakumar, K Ashok, N Jyothi, V Venkataravanappa, R Asokan

{"title":"Optimising reference gene selection in unravelling Begomovirus-induced autophagy expression in Bemisia tabaci (Hemiptera: Aleyrodidae).","authors":"N R Prasannakumar, K Ashok, N Jyothi, V Venkataravanappa, R Asokan","doi":"10.1017/S0007485325100394","DOIUrl":"https://doi.org/10.1017/S0007485325100394","url":null,"abstract":"Gene expression can be quantified using the sensitive technique of quantitative reverse transcription real-time polymerase chain reaction. Inter-sample variances can be minimised through normalisation with an appropriate reference gene. Bemisia tabaci, a significant insect vector of the Begomovirus family, transmits the Tomato Leaf Curl Bangalore Virus, for which there is a dearth of information regarding appropriate reference genes for autophagy. The viral load surpasses the vector's capacity when autophagy is activated, which is also detrimental to whiteflies, particularly concerning virus translocation. To mitigate this vector using a double-stranded RNA approach, a precise measurement of gene silencing is required. For this investigation, normalisation of housekeeping or internal control genes is necessary. The present work utilised software tools such as geNorm, NormFinder, and BestKeeper to assess the suitability of five reference genes, namely, α-tubulin, β-tubulin, elongation factor, actin, and sucrose synthase, for gene expression studies in viruliferous and non-viruliferous B. tabaci. The analysis of the data showed that β-tubulin, which exhibits more stable expression, is the best-ranked reference gene. Furthermore, the reference genes were verified using the target gene expression of atg3 (an autophagy gene). The current findings enable precise measurement of gene expression in begomovirus-induced autophagy conditions of B. tabaci.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-7"},"PeriodicalIF":1.6,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144944063","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}

引用次数: 0

Morphological identification and assessment of biodemographic parameters of Spermophagus niger motschulsky (Coleoptera: Chrysomelidae), insect pest of kenaf (Hibiscus cannabinus L.) seeds during post-harvest storage in Burkina Faso: First report. 布基纳法索红麻（Hibiscus cannabinus L.）种子收获后储藏害虫黑食精蝇（鞘翅目：金毛蝇科）形态鉴定及生物统计学参数评价

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2025-08-27 DOI: 10.1017/S0007485325100382

Emmanuel Kabore, Jean Christophe Koussoube, Koï Wenceslas Kam, Antoine Sanon, Zakaria Ilboudo

{"title":"Morphological identification and assessment of biodemographic parameters of Spermophagus niger motschulsky (Coleoptera: Chrysomelidae), insect pest of kenaf (Hibiscus cannabinus L.) seeds during post-harvest storage in Burkina Faso: First report.","authors":"Emmanuel Kabore, Jean Christophe Koussoube, Koï Wenceslas Kam, Antoine Sanon, Zakaria Ilboudo","doi":"10.1017/S0007485325100382","DOIUrl":"https://doi.org/10.1017/S0007485325100382","url":null,"abstract":"Spermophagus niger L. is a well-known pest of roselle (Hibiscus sabdariffa L.) seeds in West Africa and responsible of mostly damage. This study first reported the presence of S. niger Motschulsky in kenaf (Hibiscus cannabinus L.) seeds stored. Samples of kenaf seeds collected at four locations in Burkina Faso. In the laboratory, the seeds were incubated until adults' insects emerged. The emerged insects were first identified morphologically and their biodemographic parameters studied under controlled conditions (32°C ± 0.1, 43% ± 1 r.h.). The results showed that S. niger (Coleoptera: Chrysomelidae) was the only pest encountered on H. cannabinus seeds in storage and was able to complete its development cycle there. Over the course of its life, which lasts an average of 7 days, the female laid around 40 eggs, resulting in 24 individuals dominated by females. The embryonic and total development time were average 5 and 26 days, respectively. Spermophagus niger population doubled in 6 days, with an intrinsic rate of natural increase of 0.105. The finite rate of increase and the generation time averaged 1.11 and 31.86 days, respectively. This study pointed out for the first time that S. niger is able to evolve successfully on H. cannabinus seeds in storage conditions and therefore, could be a serious pest of this important crop. The data from this study could therefore be used as a basis for the post-harvest management of H. cannabinus seeds.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-7"},"PeriodicalIF":1.6,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144944024","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}

引用次数: 0

Molecular characterisation of the sHsps genes in Spodoptera frugiperda and analysis of their expression patterns to temperature and ultraviolet stress. 夜蛾sHsps基因的分子特征及其对温度和紫外线胁迫的表达模式分析。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2025-08-27 DOI: 10.1017/S0007485325100370

Xue-Xia Zhang, Lei Yang, Xiang-Li Dong, Chang-Yu Zhang

{"title":"Molecular characterisation of the sHsps genes in Spodoptera frugiperda and analysis of their expression patterns to temperature and ultraviolet stress.","authors":"Xue-Xia Zhang, Lei Yang, Xiang-Li Dong, Chang-Yu Zhang","doi":"10.1017/S0007485325100370","DOIUrl":"https://doi.org/10.1017/S0007485325100370","url":null,"abstract":"Spodoptera frugiperda (Lepidoptera: Noctuidae), commonly known as the fall armyworm (FAW), is an invasive pest known for its rapid migration, strong adaptability, and wide host range. Small heat shock proteins (sHsps) are a specific class of Hsps associated with the molecular mechanisms of insect growth and development and the response to abiotic stresses, such as extreme temperatures, ultraviolet (UV) rays, and pesticides. Herein, six sHsps, SfsHsp11.2, SfsHsp15.8, SfsHsp20.2, SfsHsp21.4, SfsHsp22, and SfsHsp26.6, were successfully cloned and identified from FAW. The six SfsHsps all have an α-crystallin domain in their amino acid sequences. Furthermore, we investigated the expression patterns of these six SfsHsps in different tissues and developmental stages of FAW using real-time quantitative polymerase chain reaction. Their expression levels in adult FAW were also analysed under extreme temperatures (36°C and 4°C) and UV-A stress for different durations (0, 30, 60, 90, and 120 min). Our findings revealed distinct expression profiles for the six SfsHsps in different FAW tissues and developmental stages. Notably, under temperature and UV-A stress, most SfsHsp genes were significantly upregulated in adults. Our findings strongly indicate that SfsHsps are crucial in the development and stress response of S. frugiperda.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-10"},"PeriodicalIF":1.6,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144944044","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}

引用次数: 0

Dose-dependent effect of methyl jasmonate on Drosophila suzukii (Matsumura) (Diptera: Drosophilidae). 茉莉酸甲酯对铃木果蝇的剂量依赖性研究（双翅目：果蝇科）。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2025-08-27 DOI: 10.1017/S0007485325100369

Prangthip Parichanon, Priscilla Farina, Linda Abenaim, Barbara Conti

{"title":"Dose-dependent effect of methyl jasmonate on Drosophila suzukii (Matsumura) (Diptera: Drosophilidae).","authors":"Prangthip Parichanon, Priscilla Farina, Linda Abenaim, Barbara Conti","doi":"10.1017/S0007485325100369","DOIUrl":"https://doi.org/10.1017/S0007485325100369","url":null,"abstract":"Drosophila suzukii is a significant pest of soft- and thin-skinned fruit crops. Synthetic pesticides remain the primary control method; however, their use raises concerns about insect resistance and harmful pesticide residues in produce. Methyl jasmonate (MeJA), a plant growth regulator in the jasmonate family, plays a key role in plant defence against herbivores and has been identified as a repellent for arthropods of medical and veterinary relevance. This study examined the effect of MeJA on D. suzukii female oviposition and adult behaviour using two-choice bioassays. In a two-choice cage, doses above 1287.5 µg/filter paper deterred D. suzukii females from oviposition by more than 90% on artificial fruits. Using a two-choice planar olfactometer, MeJA also repelled both sexes with median repellent dose (RD50) values of 55.24 µg/filter paper for females, 55.03 µg/filter paper for males, and 55.14 µg/filter paper for total adults. Interestingly, MeJA demonstrated a dose-dependent dual effect: at 309.0 µg/filter paper, it functioned as a bio-repellent, while lower doses (3.86-15.45 µg/filter paper) acted as an attractant. This dual effect suggests that MeJA could serve as both a repellent and an attractant depending on its dose, with potential applications as a lure in traps.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-8"},"PeriodicalIF":1.6,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144943988","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}

引用次数: 0

Chitin deacetylase is essential for successful molting in Panonychus citri (Acari: Tetranychidae). 几丁质脱乙酰酶是柑桔全爪螨成功脱壳的关键。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2025-08-26 DOI: 10.1017/S0007485325100291

Haifeng Wang, Chengyu Jiang, Tianrong Xin, Bin Xia

{"title":"Chitin deacetylase is essential for successful molting in Panonychus citri (Acari: Tetranychidae).","authors":"Haifeng Wang, Chengyu Jiang, Tianrong Xin, Bin Xia","doi":"10.1017/S0007485325100291","DOIUrl":"https://doi.org/10.1017/S0007485325100291","url":null,"abstract":"Panonychus citri is a significant pest of Rutaceae plants. Chitin deacetylase is a key gene in chitin metabolism and the insect molting process. In this study, The PcCDA1 and PcCDA2 genes of P. citri were cloned and identified. The expression of PcCDA1 was higher during the egg stage, while PcCDA2 exhibited the highest expression during the larval stage, with their expression levels showing a clear periodicity. Using RNAi technology to silence the expression of the PcCDA1 and PcCDA2 genes in the mite, the results indicated that only 20.85% successfully molted, while the deformity rates were 78.81% and 85.44%, respectively. HE staining and microscopic observation revealed that silencing PcCDA1 and PcCDA2 caused an increase in the epidermal thickness of P. citri by 1.87 μm and 5.706 μm, respectively. Additionally, silencing PcCDA also significantly reduced the relative mRNA expression levels of chitin synthesis genes (PcCHS1 and PcCHS2) and degradation genes (PcCHT1, PcCHT2, and PcCHT4). These results suggest that the PcCDA gene is crucial for normal molting and epidermal development, providing new scientific evidence for molecular target-based green pest control strategies.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-9"},"PeriodicalIF":1.6,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144944031","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}

引用次数: 0

Level of host concealment shape parasitoid community of microlepidopteran species living on hops. 寄主隐蔽程度影响以啤酒花为食的小鳞翅目寄生群落。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2025-08-26 DOI: 10.1017/S000748532510031X

Tomáš Hovorka, Kamil Holý, Cristina Vasilita, Lars Krogmann, Petr Janšta

{"title":"Level of host concealment shape parasitoid community of microlepidopteran species living on hops.","authors":"Tomáš Hovorka, Kamil Holý, Cristina Vasilita, Lars Krogmann, Petr Janšta","doi":"10.1017/S000748532510031X","DOIUrl":"https://doi.org/10.1017/S000748532510031X","url":null,"abstract":"Parasitoid-host interactions are key drivers of insect community structure, and host concealment is known to influence both parasitoid diversity and parasitism rates. However, the effectiveness of different host defence strategies in mitigating parasitism remains insufficiently understood. In this study, we examined how the level of host concealment affects parasitoid communities and parasitism rates in two microlepidopteran species living on hops (Humulus lupulus L.): Caloptilia fidella, which employs a leaf-rolling strategy, and Cosmopterix zieglerella, a strict leaf-miner. We collected a total of 774 and 150 host-infested leaves for C. fidella and C. zieglerella, respectively. Parasitism rates were calculated as the proportion of leaves from which parasitoids emerged and were averaged across three years. We combined traditional morphological identification with molecular species delimitation based on ITS2 and CO1 markers, employing ASAP (Assemble Species by Automatic Partitioning) and Bayesian Poisson Tree Processes (bPTP) methods to refine parasitoid taxonomy and detect cryptic species. Our results showed that semi-concealed C. fidella larvae in leaf rolls experienced significantly higher parasitism rates than their mining stages, while fully concealed C. zieglerella larvae exhibited generally lower parasitism. Molecular analyses confirmed idiobiont strategies in several parasitoid species, including Sympiesis acalle, S. sericeicornis, and Elachertus fenestratus, and bPTP outperformed ASAP in detecting cryptic diversity. These findings suggest that, in the studied system, leaf-mining offers more effective protection from parasitoids than leaf-rolling. Additionally, the study highlights the value of molecular tools in species delimitation and underscores their importance for improving parasitoid taxonomy and advancing our understanding of host-parasitoid dynamics.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-15"},"PeriodicalIF":1.6,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144944070","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}

引用次数: 0

Trait-based explanation of circadian flight rhythms in bark and ambrosia beetles (Scolytinae). 树皮甲虫和凤仙花甲虫（鞘翅科）生理飞行节律的性状解释。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2025-08-25 DOI: 10.1017/S0007485325100357

Dominik Stočes, Jan Šipoš, Attila Balázs, Jiří Procházka, David Kopr, Petr Baňař

{"title":"Trait-based explanation of circadian flight rhythms in bark and ambrosia beetles (Scolytinae).","authors":"Dominik Stočes, Jan Šipoš, Attila Balázs, Jiří Procházka, David Kopr, Petr Baňař","doi":"10.1017/S0007485325100357","DOIUrl":"https://doi.org/10.1017/S0007485325100357","url":null,"abstract":"Understanding the circadian rhythms of bark and ambrosia beetles (Scolytinae) is crucial for assessing their dispersal strategies, trophic specialisation, and microhabitat preferences. This study investigated circadian rhythms in Scolytinae communities using flight interception traps in an oak forest in the southern part of Czechia. Ordination biplot revealed a flight activity gradient, with nocturnal dispersers distinct from diurnal species. Species richness gradually decreased from the 20:00-24:00 interval through to the 12:00-16:00 interval, with the most notable decline observed between the 08:00-12:00 and 12:00-16:00 intervals. A combination of fourth-corner and partial canonical correspondence analyses identified tribal affiliation, trophic specialisation, and microhabitat preference as key drivers of flight structuring. Members of the tribe Xyleborini showed negative association to the 16:00-20:00 interval. Xylomycetophagous species, such as Xyleborinus saxesenii exhibited multimodal activity peaks, with increased flight from nighttime to early morning. In contrast, species that feed in the phloem such as Scolytus intricatus showed no significant association with any specific time interval. Several species that utilise stumps as potential breeding substrates showed significantly reduced flight activity during the crepuscular period, which supports the hypothesis that microhabitat preference contributes to diel periodicity. Our findings show the complex interplay between abiotic and biotic factors in shaping circadian flight periodicity, which leads to distinct flight activity patterns between Scolytini bark and Xyleborini ambrosia beetles. These results emphasise the ecological significance of maintaining heterogeneous forest structures that provide a balance of shaded and sun-exposed deadwood habitats to support diverse assemblages.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-11"},"PeriodicalIF":1.6,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144944075","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}

引用次数: 0