Applied Entomology and Zoology最新文献

{"title":"Preface: biology of gall-inducing arthropods and their associates—memorial issue for Professor Junichi Yukawa","authors":"Makoto Tokuda, Man-Miao Yang, Tim Craig","doi":"10.1007/s13355-026-00983-7","DOIUrl":"10.1007/s13355-026-00983-7","url":null,"abstract":"","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"61 3","pages":"303 - 305"},"PeriodicalIF":1.0,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148782120","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}

{"title":"Two new species of Diadiplosis (Diptera: Cecidomyiidae), predators of mealybug (Hemiptera: Pseudococcidae) from Brazil","authors":"Esau Ospina-Peñuela,&nbsp;Maria Virginia Urso-Guimarães","doi":"10.1007/s13355-026-00985-5","DOIUrl":"10.1007/s13355-026-00985-5","url":null,"abstract":"<div><p>Predatory cecidomyiids of the genus <i>Diadiplosis</i> Felt, 1911 (Diptera: Cecidomyiidae) are widely distributed throughout the Neotropical Region. Of the 34 species currently known in the genus, 14 have been recorded from Central and South America, making it, thus far, the genus of predatory cecidomyiids with the highest number of species recorded in this region. This study consolidates recent findings on the diversity of this genus in Brazil and provides detailed morphological information on its immature forms. We describe and illustrate the larva, pupa, male, and female of two new predatory cecidomyiid species, <i>Diadiplosis duriganae</i> sp. nov. and <i>D. carmonetoi</i> sp. nov., associated with mealybugs (Hemiptera: Pseudococcidae) collected from agricultural systems and the Cerrado biome (Brazilian savanna) in São Paulo State, Brazil. The new species are compared with their congeners, and an updated identification key for Neotropical male species is provided, along with diagnoses of the genus and each new species.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"61 3","pages":"489 - 503"},"PeriodicalIF":1.0,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13355-026-00985-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148782118","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}

{"title":"Descriptions of three new species of Gastrancistrus (Hymenoptera: Pirenidae), with remarks on previously overlooked morphological characters on the mesosoma","authors":"Kishin Inoue,&nbsp;Kazunori Matsuo","doi":"10.1007/s13355-026-00981-9","DOIUrl":"10.1007/s13355-026-00981-9","url":null,"abstract":"<div><p>To improve the understanding of the taxonomy and host associations in the genus <i>Gastrancistrus</i>, we describe three new species, provide a key to Japanese species, and discuss previously undescribed morphological characters. In this research, <i>Gastrancistrus aerugo</i> Inoue &amp; Matsuo, <b>sp. n.</b>, <i>G. aquilus</i> Inoue &amp; Matsuo <b>sp. n.</b>, and <i>G. yukawai</i> Inoue &amp; Matsuo <b>sp. n.</b> (Hymenoptera: Pirenidae) are newly described from Japan. <i>Gastrancistrus aerugo</i> <b>sp. n.</b> is a parasitoid of an unidentified species of Cecidomyiidae (Diptera), which induces bud galls on <i>Lonicera morrowii</i> (Caprifoliaceae). <i>Gastrancistrus aquilus</i> <b>sp. n.</b> is a parasitoid of <i>Peracecis yukawai</i> (Diptera: Cecidomyiidae), which induces leaf galls on <i>Celtis sinensis</i> (Cannabaceae). <i>Gastrancistrus yukawai</i> <b>sp. n.</b> is a larval solitary endoparasitoid of <i>Pseudasphondylia neolitseae</i> (Diptera: Cecidomyiidae), which induces leaf galls on <i>Neolitsea sericea</i> (Lauraceae). Among these species, <i>G. yukawai</i> is morphologically similar to <i>G. coxalis</i>, which is redescribed in this paper because of the lack of morphological information. A key to Japanese <i>Gastrancistrus</i> species including two more Japanese species: <i>G. fuscicornis</i> and <i>G. sugitama</i> is provided. We also discuss the utility of using the previously undescribed variation in the depth and shape of the transpimeral sulcus and patterning of the lower mesepimeron in species identification.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"61 3","pages":"431 - 442"},"PeriodicalIF":1.0,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148782334","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}

{"title":"Bet-hedging strategies in gall-inducing insects: Daphnephila gall midges (Diptera: Cecidomyiidae) exhibit quadrimodal adult emergence through two types of polymodality in Taiwan","authors":"Liang-Yu Pan,&nbsp;Man-Miao Yang","doi":"10.1007/s13355-026-00977-5","DOIUrl":"10.1007/s13355-026-00977-5","url":null,"abstract":"<div><p><i>Daphnephila</i> gall midges (Diptera: Cecidomyiidae) inhabiting subtropical evergreen forests in Taiwan exhibit complex temporal diversification in their life histories. We conducted a 7-year field study (2004–2011) tracking four leaf-galling <i>Daphnephila</i> species on 105 <i>Machilus thunbergii</i> trees in northern Taiwan, integrating host phenology, gall development, adult emergence, and parasitism. The host tree displays bimodal bud flushing, producing winter and spring leaf cohorts that provide extended oviposition windows. Correspondingly, <i>Daphnephila</i> populations exhibit quadrimodal adult emergence generated by two forms of polymodality. Within a single generation, individuals display intraseasonal polymodality (Type A sensu Waldbauer 1978), emerging in both winter and spring. In addition, a proportion of larvae undergo extended diapause exceeding 1 year, corresponding to interannual polymodality (Type C). Offspring from the same female frequently diverged into univoltine and semivoltine pathways, demonstrating flexible life-history expression. Parasitism rates were significantly lower in winter-emergent individuals and in semivoltine cohorts, supporting enemy avoidance as a major driver of temporal diversification. This study represents the first explicit documentation of Type A polymodality in Cecidomyiidae and reveals a multi-layered bet-hedging strategy operating across seasonal and interannual scales in a subtropical gall-inducing insect system.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"61 3","pages":"457 - 468"},"PeriodicalIF":1.0,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13355-026-00977-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148782337","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}

{"title":"Tamalia inquiline aphids (Aphididae) show higher frequencies of communal gall occupation than their host gall-inducing Tamalia aphids, with patterns influenced by host plant species","authors":"Donald G. Miller III,&nbsp;Robert J. Griffin-Nolan","doi":"10.1007/s13355-026-00980-w","DOIUrl":"10.1007/s13355-026-00980-w","url":null,"abstract":"<div><p>We studied long-term population dynamics of gall aphids and their host plants, manzanita shrubs (Ericaceae), at a field site along the Sierra–Cascade axis of northern California over a 20-year interval between wildfires. We sampled galls annually from a population of <i>Arctostaphylos viscida</i> (<i>n</i> = 133) and <i>Arctostaphylos manzanita</i> (<i>n</i> = 339) and dissected sample galls under a microscope to record the number of gall inducers (<i>Tamalia coweni</i> (Cockerell, 1905)) (Hemiptera: Aphididae) as well as inquilines (<i>Tamalia inquilinus</i> Miller, 2000) (Hemiptera: Aphididae) present in galls. We used a generalized linear mixed model to analyze insect counts per gall. Across the study period, the number of <i>T. coweni</i> apterous females per gall remained relatively constant. In contrast, apterous <i>T. inquilinus</i> females were more abundant (in galls containing both species) and exhibited pronounced temporal variability. These findings have potential implications for the rate and mode of evolutionary diversification in these two gall-dwelling aphid species.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"61 3","pages":"483 - 487"},"PeriodicalIF":1.0,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783445","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}

{"title":"Gall-inducing insects in classical biological management of weeds","authors":"Anantanarayanan Raman,&nbsp;Bruce L. Webber,&nbsp;Anamika Sharma","doi":"10.1007/s13355-026-00976-6","DOIUrl":"10.1007/s13355-026-00976-6","url":null,"abstract":"<div><p>High level of host specificity is a strength in considering gall-inducing insects in weed biological-management campaigns. The effects of gall-inducing insects on plants are subtle and discreet and are rarely quantified to establish their value in biological management. The Tephritidae (Diptera), Curculionidae (Coleoptera), and some Lepidoptera are effective in regulating populations of herbaceous weeds, mainly because of their specialized level of host relations and the irreversible damage they inflict upon host plants by interrupting water and nutrient transport. By injuring the plant and by draining the nutrients, these insects inflict minor to moderate levels of stress in the tissues and organs they infest, in addition to strongly impacting plant-resource availability and allocation. The more-widely used Cecidomyiidae (Diptera) are relatively less efficient in inflicting plant damage, leading to plant death. Gall-inducing insects are parasitic organisms that utilise host tissues for nutrition and habitat; they rarely cause direct and widespread mortality in weeds. Rather, because of their strength as monophagous-plant feeders, they can be used as primary plant stressors to downgrade plant immunity levels and deplete resources that contribute to either maintaining or enhancing fitness. Target weeds most likely require additional stressors, such as plant–plant competition or introduction of a necrotrophic or a phytotoxin-producing fungus to deliver whole-plant death. We propose a novel framework, establishing the specific impacts of gall-inducing insects on plant-resource allocation, to permit future research to be more explicit about how gall-inducing insects can contribute to effective biological-management outcomes.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"61 3","pages":"319 - 332"},"PeriodicalIF":1.0,"publicationDate":"2026-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783180","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}

{"title":"A new neotropical Bruggmanniella Tavares, 1909 (Diptera: Cecidomyiidae) inducing galls on commercial avocado","authors":"Carolina de Almeida Garcia,&nbsp;Maria Virginia Urso,&nbsp;Grazielle Furtado Moreira,&nbsp;Alexandre José Ferreira Diniz","doi":"10.1007/s13355-026-00975-7","DOIUrl":"10.1007/s13355-026-00975-7","url":null,"abstract":"<div><p>Brazil is among the world’s leading avocado producers, with cultivation increasingly threatened by gall-inducing midges that damage blossoms and impair fruit development. During surveys in commercial Hass avocado orchards in Minas Gerais, Brazil, a previously unknown species of <i>Bruggmanniella</i> Tavares, 1909 (Diptera: Cecidomyiidae) was discovered infesting young fruits. Here, we describe <i>Bruggmanniella abacate</i> sp. nov. Garcia and Urso, based on larvae, pupae, males, and females reared from malformed fruit galls. Larvae develop within the ovarian tissue, inducing elongated galls that lead to fruit abortion. This is the first record of a <i>Bruggmanniella</i> species associated with <i>Persea americana</i> Mill. cv. ‘Hass’ in Brazil. Our findings reveal previously undocumented diversity of avocado-infesting gall midges and underscore the need for further studies to evaluate their distribution, biology, and potential economic impact on the expanding Brazilian avocado production.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"61 3","pages":"389 - 394"},"PeriodicalIF":1.0,"publicationDate":"2026-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13355-026-00975-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148782157","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}

{"title":"Insular divergence and host-associated diversification in ovoid-gall Daphnephila (Diptera: Cecidomyiidae) from Taiwan, with description of a new species","authors":"Sheng-Feng Lin,&nbsp;Tung-Chuan Chiang,&nbsp;Hsuan Chang,&nbsp;Yu-Chu Weng,&nbsp;Man-Miao Yang","doi":"10.1007/s13355-026-00968-6","DOIUrl":"10.1007/s13355-026-00968-6","url":null,"abstract":"<div><p>The Old World cecidomyiid genus <i>Daphnephila</i> is primarily associated with <i>Machilus</i> (Lauraceae) plants and exhibits exceptionally high gall diversity in Taiwan. At present, six described species correspond to only seven of 40 known <i>Daphnephila</i> gall morphospecies on the island. In this study, we clarified the species identities of Taiwanese <i>Daphnephila</i> inducing long ovoid-galls and ovoid-galls on the leaves of five <i>Machilus</i> plants, and explored their diversification using molecular evidence. Accordingly, two species, <i>D. yukawai</i> <b>sp. n.</b> and <i>D. taiwanensis</i>, were recognized based on morphological characteristics and species delimitation method (Assemble Species by Automatic Partitioning). The former species utilizes only the endemic <i>M</i>. <i>mushaensis</i>, primarily inducing ovoid-galls along the major leaf vein, whereas the latter species associates with five <i>Machilus</i> species and induces two gall types on various leaf parts. Notably, when sympatric with <i>D. yukawai</i> <b>sp. n.,</b> <i>D. taiwanensis</i> exhibits character displacement of galling habit, forming long ovoid-galls along the minor leaf veins. Furthermore, the COI-based IQ tree supported: (1) a single origin of East Asian ovoid-gall <i>Daphnephila</i> species, (2) the sister-group relationship between the Taiwanese lineage and a Chinese species, and (3) the role of <i>M. mushaensis</i> as the probable ancestral host of the Taiwanese lineage, including <i>D. taiwanensis.</i> These results suggest that <i>D. taiwanensis</i> colonized additional <i>Machilus</i> hosts after diverging from <i>D. yukawai</i> <b>sp. n.</b> Taken together, our findings indicate that novel plant associations and shifts in galling sites may have facilitated diversification in <i>Daphnephila</i> cecidomyiids, contributing to the remarkable richness of <i>Daphnephila</i> galls in Taiwan.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"61 3","pages":"355 - 366"},"PeriodicalIF":1.0,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13355-026-00968-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148782034","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}

{"title":"A new species of Tanaostigmodes from the emarginatus species group (Hymenoptera: Chalcidoidea: Tanaostigmatidae) gall forming on Handroanthus pulcherrimus (Bignoniaceae) in Buenos Aires, Argentina","authors":"Daniel Alejandro Aquino,&nbsp;Consuelo Vallina,&nbsp;Bárbara Pidal,&nbsp;Carmen Hernández","doi":"10.1007/s13355-026-00969-5","DOIUrl":"10.1007/s13355-026-00969-5","url":null,"abstract":"<div><p>A new gall-inducing species of <i>Tanaostigmodes</i> Ashmead, 1896 (Hymenoptera: Chalcidoidea: Tanaostigmatidae) is described from <i>Handroanthus pulcherrimus</i> (Bignoniaceae) in Buenos Aires Province, Argentina. The new species, <i>Tanaostigmodes lapachosus</i> sp. n., belongs to the <i>emarginatus</i> species group. Specimens were collected from galls on the midrib and petiolules of leaflets of <i>H. pulcherrimus</i>, a native tree widely distributed in northeastern Argentina, Paraguay, and Brazil, and commonly known as “lapacho amarillo misionero”. A survey conducted at the Arturo E. Ragonese Botanical Garden (INTA) revealed galls in 85% of the sampled trees, with an average of 34.7% of leaflets per leaf affected. The galls are ovoid, bump-shaped, and occur in both seedlings and mature trees. Morphological examination of adults was carried out using stereomicroscopy, slide mounting, and digital imaging. The discovery of <i>T. lapachosus</i> sp. n. highlights the importance of taxonomic surveys in less-studied ecosystems and contributes to the understanding of plant–insect interactions in South America. The high incidence of gall formation raises important questions about its impact on host tree health, with potential implications for future management of <i>H. pulcherrimus</i> in natural and urban environments. Detailed morphological descriptions, illustrations, and a key to distinguish this species from all members of the species group are provided.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"61 3","pages":"409 - 414"},"PeriodicalIF":1.0,"publicationDate":"2026-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148783472","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}

{"title":"Blue light-input pathways causing lethal effects in Drosophila melanogaster (Diptera: Drosophilidae)","authors":"Atsuki Kobayashi,&nbsp;Masatoshi Hori","doi":"10.1007/s13355-026-00971-x","DOIUrl":"10.1007/s13355-026-00971-x","url":null,"abstract":"<div><p>Our previous study demonstrated that blue light irradiation is lethal to various insect species and increases the generations of hydrogen peroxide (H₂O₂), a major reactive oxygen species (ROS), in <i>Drosophila melanogaster</i> Meigen (Diptera: Drosophilidae) pupae. We hypothesized that blue light penetrates the compound eyes and/or integument of the insect, is absorbed by chromophores or photosensitizers, generates ROS, damages tissues, and ultimately leads to death. To test the hypothesis, the role of compound eyes and the integument as blue light-input pathways were investigated using <i>D. melanogaster</i> adults with different phenotypes, including two wild types and seven mutants (<i>white</i>: white eyes, <i>sepia</i>: sepia eyes, <i>Bar</i>: bar eyes, <i>eye missing</i>: absence of eyes, <i>Cry</i>^<i>b</i>: loss of cryptochrome function, <i>norpA</i>: defect in phototransduction, <i>ebony</i>: melanic integument). The results revealed that <i>ebony</i> fly mortality was notably lower than that of the wild types, whereas other mutant strains showed similar or higher mortality rates compared to wild types. This suggests that blue light penetration through the integument plays a crucial role in toxicity, whereas compound eyes and cryptochromes are less critical blue light-input pathways. Furthermore, a positive correlation was observed between blue light transmittance through the abdominal integument and mortality, although the integument exhibited no specific wavelength selectivity. H₂O₂ levels were higher in flies irradiated with blue light compared to in non-irradiated flies, excluding <i>ebony</i>, among the three phenotypes tested (wild type, <i>white</i>, and <i>ebony</i>). The findings suggest that internal damage caused by blue light transmitted through the integument leads to death.</p></div>","PeriodicalId":8551,"journal":{"name":"Applied Entomology and Zoology","volume":"61 2","pages":"269 - 280"},"PeriodicalIF":1.2,"publicationDate":"2026-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13355-026-00971-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147734916","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}