Entomological Science最新文献_第5页

Review of the genus Synacra Förster, 1856 (Hymenoptera: Diapriidae: Belytinae) of Japan, with description of a new species 日本紫茧蜂属综述Förster， 1856（膜翅目：紫茧蜂科：紫茧蜂科）并一新种记述

IF 0.9 4区农林科学

Entomological Science Pub Date : 2025-11-19 DOI: 10.1111/ens.12617

Ryoji Kawai, Toshiharu Mita

引用次数: 0

Discovery of two specialist insects that feed on immature acorns of Castanopsis cuspidata (Thunb.) Schottky (Fagaceae) and their importance in acorn production 发现两种以东北栲（Castanopsis cuspidata）未成熟橡子为食的特殊昆虫。壳斗科植物Schottky及其在橡实生产中的重要性

IF 0.9 4区农林科学

Entomological Science Pub Date : 2025-11-17 DOI: 10.1111/ens.12621

Kimiko HIRAYAMA, Nobuki KAWANO, Sakumi OHKUBO, Issei TANAKA, Fumitaka HOSOBUCHI, Yukiko FUKUHAMA, Kazunori MATSUO, Issei OHSHIMA

{"title":"Discovery of two specialist insects that feed on immature acorns of Castanopsis cuspidata (Thunb.) Schottky (Fagaceae) and their importance in acorn production","authors":"Kimiko HIRAYAMA, Nobuki KAWANO, Sakumi OHKUBO, Issei TANAKA, Fumitaka HOSOBUCHI, Yukiko FUKUHAMA, Kazunori MATSUO, Issei OHSHIMA","doi":"10.1111/ens.12621","DOIUrl":"https://doi.org/10.1111/ens.12621","url":null,"abstract":"The acorns of fagaceous species contain considerable amounts of nutrients, especially within the cotyledons. Seed predation that damages cotyledons, primarily caused by Curculio weevils, has been considered to be an important factor affecting acorn production. We investigated acorn falling patterns and predispersal insect damage in Castanopsis cuspidata (Fagaceae), whose cotyledons began to develop late in the growing season and acorns were covered by a cupule until maturity, from an initial stage of acorn development in two well-developed evergreen forests in Japan: Higashiyama in Kyoto Prefecture and Aya in Miyazaki Prefecture. Based on the identification using appearance and genetic analyses of insects damaging acorns, undescribed Heliozela sp. were dominant, followed by undescribed Eurytoma sp. in immature-sized acorns in both Higashiyama and Aya, whereas Curculio weevils were predominant in mature-sized acorns. Seasonal sampling of acorns from the crowns indicated that larvae of Heliozela sp. and Eurytoma sp. feed on the pericarp of the acorn during early stages of acorn development and that these insects have a multivoltine life cycle. In both Higashiyama and Aya, the total number of acorns damaged by Heliozela sp. and Eurytoma sp. amounted to approximately half of the total number of acorns produced in 1 year, when initial acorn production was considerably less. Our results suggest that a variety of seed-feeding insects can evolve to adjust to acorn growth patterns, and that such insects, in turn, have a large impact on acorn production, even prior to cotyledon development.","PeriodicalId":11745,"journal":{"name":"Entomological Science","volume":"28 4","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ens.12621","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145580831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mating behavior and female receptivity in a Japanese mason bee Osmia taurus (Hymenoptera: Megachilidae) 日本石蜂金牛的交配行为及雌性接受性（膜翅目：大蜂科）

IF 0.9 4区农林科学

Entomological Science Pub Date : 2025-11-11 DOI: 10.1111/ens.12627

Ken-ichi Harano

{"title":"Mating behavior and female receptivity in a Japanese mason bee Osmia taurus (Hymenoptera: Megachilidae)","authors":"Ken-ichi Harano","doi":"10.1111/ens.12627","DOIUrl":"https://doi.org/10.1111/ens.12627","url":null,"abstract":"The genus Osmia is a promising model for studying sexual selection due to its elaborate mating behavior. However, detailed investigations of mating behavior in Japanese Osmia species remain limited. This study describes the mating behavior of the Japanese mason bee Osmia taurus and examines female receptivity under different conditions to provide foundational data for future research. Mating in O. taurus consisted of three distinct phases: precopulatory (mean ± SD = 277.4 ± 289.3 s), copulatory (17.5 ± 4.4 s) and post-copulatory (3,501.8 ± 1,606.7 s), with a notably prolonged post-copulatory phase. Female receptivity declined with age; over 60% of 0-day-old virgin females mated, whereas no mating occurred in 2–3-day-old virgins. Additionally, females lost receptivity immediately after a single mating and did not regain it even after 7–9 days, strongly suggesting monandry. The results also indicate a rapid decline in female attractiveness after mating, suggesting changes in pheromonal communication. These findings highlight the importance of using newly emerged females in mating experiments and raise intriguing questions about the evolutionary and physiological mechanisms underlying the rapid loss of female receptivity in this species.","PeriodicalId":11745,"journal":{"name":"Entomological Science","volume":"28 4","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145521925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Riparian soil conditions associated with the timing of millipede mass entry into a stream, western Japan 日本西部，与千足虫大量进入溪流的时间有关的河岸土壤条件

IF 0.9 4区农林科学

Entomological Science Pub Date : 2025-11-10 DOI: 10.1111/ens.12622

Takehiro Kubo, Hirokazu Haga, Shigenori Karasawa

{"title":"Riparian soil conditions associated with the timing of millipede mass entry into a stream, western Japan","authors":"Takehiro Kubo, Hirokazu Haga, Shigenori Karasawa","doi":"10.1111/ens.12622","DOIUrl":"https://doi.org/10.1111/ens.12622","url":null,"abstract":"Millipedes play a crucial role in forest ecosystems as decomposers of organic litter and as food resources. A few studies have reported that millipedes are preyed upon by fish and gastropods and that assemblages of millipede carcasses can be found in streams. However, the mass entry of millipedes into aquatic environments and the effects of environmental conditions on this phenomenon remain unclear. In this study, we characterized the distribution of millipedes, Parafontaria tonominea (Attems, 1899), in a mountain stream in western Japan and examined riparian environmental conditions at the time of their entry into this stream. From June 7 to November 30, 2022, we surveyed a 650 m stream reach two to three times per week. We discovered a high density of millipede carcasses at a single site (661.3 carcasses/m2). Millipede entry occurred between June 17 and 20. After that period, no millipedes were observed in the stream. Meteorological and hydrological observations in the riparian zone indicated that millipedes entered the stream when there was no rainfall, when the soil was relatively wet, and when the daily minimum soil temperature exceeded 15°C for the first time that year. All individuals observed in this study were juveniles, suggesting that their entry was unlikely to be related to their breeding behavior. Soil moisture and temperature conditions may have been favorable for increased millipede activity. Further research is needed to elucidate the reasons for this mass entry and its ecological significance, based on millipede behavioral traits and soil environmental conditions.","PeriodicalId":11745,"journal":{"name":"Entomological Science","volume":"28 4","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145521586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Phylogenetic position of threatened jewel beetles of the genus Tokaranodicerca (Coleoptera: Buprestidae) with implications for conservation 濒危金甲虫属（鞘翅目：金甲虫科）的系统发育定位及其保护意义

IF 0.9 4区农林科学

Entomological Science Pub Date : 2025-11-04 DOI: 10.1111/ens.12620

Wataru TOKI, Takaharu HATTORI, Hong Thai PHAM

{"title":"Phylogenetic position of threatened jewel beetles of the genus Tokaranodicerca (Coleoptera: Buprestidae) with implications for conservation","authors":"Wataru TOKI, Takaharu HATTORI, Hong Thai PHAM","doi":"10.1111/ens.12620","DOIUrl":"https://doi.org/10.1111/ens.12620","url":null,"abstract":"The extremely rare jewel beetles of the genus Tokaranodicerca Hattori (Coleoptera: Buprestidae) are distributed in isolated and small areas in and near villages in Japan and Vietnam, raising immediate conservation concerns. The present study investigated the molecular phylogeny among Tokaranodicerca and related genera (Dicerca and Touzalinia) using mitochondrial and nuclear DNA sequences as the fundamental knowledge for conservation. The phylogenetic analyses revealed that the genus Tokaranodicerca formed a monophyletic clade and was sister to the genus Touzalinia, which is consistent with the previous phylogenetic study based on morphology. The two Japanese species, Tokaranodicerca nishidai and Tokaranodicerca shimonoi were genetically distant from each other despite their close distribution areas and similar biology, particularly their association with aged Morus trees, indicating that they should be treated as different conservation units. In addition, the morphology of Vietnamese species Tokaranodicerca vietnamensis, which was not examined in this study, is more similar to that of T. shimonoi than T. nishidai. Therefore, the presence of undescribed Tokaranodicerca species is expected in East Asia. For conservation of Tokaranodicerca, protection of rural forests containing thick-trunked, aged Morus trees in East Asia is important.","PeriodicalId":11745,"journal":{"name":"Entomological Science","volume":"28 4","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145469609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Dietary and olfactory effects of fermenting apple juice on reproductive diapause in Drosophila moriwakii (Diptera: Drosophilidae) 发酵苹果汁对森氏果蝇生殖滞育的食性和嗅觉影响（双翅目：果蝇科）

IF 0.9 4区农林科学

Entomological Science Pub Date : 2025-11-03 DOI: 10.1111/ens.12619

Nobuaki ICHIJÔ, Hiroaki SATO

{"title":"Dietary and olfactory effects of fermenting apple juice on reproductive diapause in Drosophila moriwakii (Diptera: Drosophilidae)","authors":"Nobuaki ICHIJÔ, Hiroaki SATO","doi":"10.1111/ens.12619","DOIUrl":"https://doi.org/10.1111/ens.12619","url":null,"abstract":"Drosophila moriwakii (Diptera: Drosophilidae) generally has one generation in a year and enters summer–winter reproductive diapause in early summer in Sapporo, northern Japan, but a small fraction of the population produces the second generation in mid-summer at places where breeding resources are abundantly provided. In the laboratory experiments, flies were revealed to enter diapause under moderately low temperatures and short daylengths. Under long daylengths, they enter diapause when reared in cages in which they are able to fly freely but do not when reared in small vials in which they are prevented from flying. However, the effect of diet on diapause has not been investigated in the laboratory. In this study, we address this issue by using artificially prepared breeding resources made of Drosophila medium, apple juice and dry yeast. In the results, females of this species were prevented from entering diapause not only when they were fed with these resources but also when they were exposed only to the odor of fermenting apple juice.","PeriodicalId":11745,"journal":{"name":"Entomological Science","volume":"28 4","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ens.12619","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145469571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flower beetles across the Guineo-Congolian forest: Intra- and interspecific habitat use at two spatial scales 几内亚-刚果森林中的花甲虫：在两个空间尺度上对种内和种间栖息地的利用

IF 0.9 4区农林科学

Entomological Science Pub Date : 2025-11-03 DOI: 10.1111/ens.12615

Daniele Dendi, Stephanie N. Ajong, Thomas Francis Lado, Gift Simon Demaya, Edem A. Eniang, Gabriel Hoinsoude Segniagbeto, Guillaume Koffivi Ketoh, Sieny O. Togba, Julia E. Fa, Mathias Behangana, Fabio Petrozzi, Olivier Le Duc, Giovanni Amori, Luca Luiselli

{"title":"Flower beetles across the Guineo-Congolian forest: Intra- and interspecific habitat use at two spatial scales","authors":"Daniele Dendi, Stephanie N. Ajong, Thomas Francis Lado, Gift Simon Demaya, Edem A. Eniang, Gabriel Hoinsoude Segniagbeto, Guillaume Koffivi Ketoh, Sieny O. Togba, Julia E. Fa, Mathias Behangana, Fabio Petrozzi, Olivier Le Duc, Giovanni Amori, Luca Luiselli","doi":"10.1111/ens.12615","DOIUrl":"https://doi.org/10.1111/ens.12615","url":null,"abstract":"The Guineo-Congolian forests, extending from Sierra Leone to Uganda, are recognized as one of the most biodiverse regions on Earth. Species distribution in these forests follows distinct patterns, including interconnected species with minimal genetic differentiation, species complexes with distribution gaps, and species with continuous ranges undergoing speciation. This study explored distribution patterns in the flower beetles of the genus Dicronorhina, especially D. cavifrons, D. m. micans, and D. johnstoni. From field surveys conducted in Côte d'Ivoire, Togo, Nigeria, Uganda, and South Sudan, we examine adult phenology, habitat characteristics, and the biogeographic implications of these species. We examine habitat use at both sighting and landscape scales using geographic information system–based spatial analyses, detrended correspondence analysis, and linear mixed methods. We show that within this species complex, D. cavifrons and D. m. micans display similar ecological traits. At the same time, D. johnstoni has distinct adaptations, including a broader habitat range and reduced reliance on mature forests. Rainfall positively influenced the activity of D. cavifrons and D. m. micans, though its effect on D. johnstoni was unclear. Intraspecific variation was minimal, while interspecific differences highlighted divergent ecological pathways. Biogeographically, the Volta River was hypothesized to act as a barrier, isolating D. cavifrons from D. m. micans, while D. johnstoni occupies a unique niche.","PeriodicalId":11745,"journal":{"name":"Entomological Science","volume":"28 4","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145469572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Sex mosaics and a rare male in the parthenogenetic stick insect Neohirasea japonica (Phasmatodea: Lonchodidae) 孤雌生殖竹节虫的性嵌合体和一种罕见雄性

IF 0.9 4区农林科学

Entomological Science Pub Date : 2025-11-02 DOI: 10.1111/ens.12625

Taisei MORISHITA, Tetsuo NAWA, Tomonari NOZAKI

{"title":"Sex mosaics and a rare male in the parthenogenetic stick insect Neohirasea japonica (Phasmatodea: Lonchodidae)","authors":"Taisei MORISHITA, Tetsuo NAWA, Tomonari NOZAKI","doi":"10.1111/ens.12625","DOIUrl":"https://doi.org/10.1111/ens.12625","url":null,"abstract":"Parthenogenetic species that reproduce solely by females are pivotal for understanding the evolution and diversity of reproductive strategies. Rare males, often resulting from developmental errors, including chromosomal abnormalities, offer valuable insights into reproductive reversibility, although their rarity limits data on morphology, behavior, and fertility. Stick insects (Phasmatodea), with numerous parthenogenetic species, are key taxa for studying these phenomena; however, detailed analyses of rare males remain scarce. In this study, we investigated the spontaneous appearance of male and sexual mosaics within a captive colony of Neohirasea japonica, a widespread stick insect in Japan, where males are typically absent. In total, three individuals exhibiting male characteristics (penis and non-oviposition) were observed during the 8-year rearing. One displayed a typical male abdominal clasper and exhibited mating behavior with conspecific females, with morphological comparisons strongly suggesting that it was an N. japonica male. The other two individuals lacked mating behavior and were identified as sexual mosaics based on their external morphology and the presence of female reproductive systems upon dissection. This study provides foundational morphological and anatomical data on male, female, and sexually mosaic individuals in N. japonica. It also includes quantitative comparisons of key traits, such as the antenna-to-body length ratio, which is 0.78 in males and ranges from 0.52 to 0.53 in females. These findings establish valuable criteria for future identification of rare males and sexual mosaics in this species, ultimately contributing to our understanding of sexual trait degeneration in obligate parthenogenetic lineages.","PeriodicalId":11745,"journal":{"name":"Entomological Science","volume":"28 4","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ens.12625","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145469471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reviewer Acknowledgments for Volume 28 第28卷审稿人致谢

IF 0.9 4区农林科学

Entomological Science Pub Date : 2025-10-29 DOI: 10.1111/ens.12626

引用次数: 0

Evaluation of strip-cutting to conserve carabid beetle diversity in a conifer plantation 林带采伐对针叶林甲虫多样性保护的评价

IF 0.9 4区农林科学

Entomological Science Pub Date : 2025-10-09 DOI: 10.1111/ens.12611

Akira Ueda, Hiroki Itô, Seiichi Kanetani

{"title":"Evaluation of strip-cutting to conserve carabid beetle diversity in a conifer plantation","authors":"Akira Ueda, Hiroki Itô, Seiichi Kanetani","doi":"10.1111/ens.12611","DOIUrl":"https://doi.org/10.1111/ens.12611","url":null,"abstract":"To mitigate the impact of clear-cutting, the use of strip-cutting has increased in Japan. Strip-cutting creates uncut strips and extends forest edges compared to clear-cutting. To evaluate the impacts of strip-cutting on insect diversity, we captured carabid beetles using pitfall traps with or without fish meat bait in a conifer plantation that had undergone partial harvesting through 40-m-wide strip-cuttings and 60–120-m-wide clear-cuttings immediately before the study. The presence of bait had a negligible effect on carabid beetles. Species richness and Simpson's diversity index (1/D) were significantly higher in strip-cut areas than in clear-cut areas due to the increased presence of newly colonizing open-land species in the strip-cuts. Beetle assemblages were similar, with no significant differences observed between uncut forests and uncut strips. Species richness and diversity index were significantly higher at forest edges than in uncut areas, attributed to the presence of open-land species and the reduced abundance of the dominant forest species, Synuchus cycloderus, at forest edges. The diversity index was also significantly higher at forest edges than in harvested areas due to the presence of forest species and the low abundances of open-land species at forest edges. These findings suggest that strip-cutting is a more favorable harvesting method than clear-cutting to mitigate the impact on carabid diversity. Harpalus tridens, Harpalus jureceki, and Dolichus halensis exhibited significant positive relationships with understory cover degree in logged areas, whereas Colpodes buchanani showed a negative relationship. Carabus japonicus was abundant in both uncut areas and forest edges.","PeriodicalId":11745,"journal":{"name":"Entomological Science","volume":"28 4","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145272314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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