Entomological Science最新文献_第9页

Coexistence mechanisms of Colocasiomyia species (Diptera: Drosophilidae) sharing inflorescences of Alocasia odora (Araceae) as a host plant: Comparison between two- and three-species systems 以天南星科(Alocasia odora)植物为寄主共享花序的大花蝇属(双翅目:果蝇科)的共存机制:两种与三种系统的比较

IF 0.9 4区农林科学

Entomological Science Pub Date : 2022-04-26 DOI: 10.1111/ens.12506

Masanori J. Toda, Kohei Takenaka Takano, Toru Katoh, Ling Xiao, Jian-Jun Gao, Masako Yafuso

{"title":"Coexistence mechanisms of Colocasiomyia species (Diptera: Drosophilidae) sharing inflorescences of Alocasia odora (Araceae) as a host plant: Comparison between two- and three-species systems","authors":"Masanori J. Toda, Kohei Takenaka Takano, Toru Katoh, Ling Xiao, Jian-Jun Gao, Masako Yafuso","doi":"10.1111/ens.12506","DOIUrl":"10.1111/ens.12506","url":null,"abstract":"There are two pollination-mutualistic systems between Colocasiomyia flies and Alocasia odora. The two systems are different in the number of fly species involved. One is a two-to-one system, where C. xenalocasiae and C. alocasiae share inflorescences/infructescences of A. odora in the Ryukyu Islands (Japan), Taiwan, Guangdong, and Guangxi (China). The other system, which additionally involves the third species, C. grandis, is seen from southern Yunnan (China) to northern Vietnam. To reveal coexistence mechanisms in these systems, we compared breeding habits of the component species between the two- and three-species systems in natural conditions, and undertook a field experiment to test a hypothesis whether oviposition sites of the component species are affected by interference competition between them. The observations under natural conditions confirmed the breeding niche separation of component species in the two-species system: C. xenalocasiae uses mostly the pistillate region of spadix, whereas C. alocasiae uses mostly the staminate region, with partial overlap of their oviposition sites in the lower intermediate region. In the three-species system, however, these two species separated their oviposition sites nearly completely from each other, suggesting that they are excluded from the lower intermediate region by the third species, C. grandis, which monopolizes there. The result of field experiments did not support this hypothesis: neither C. xenalocasiae nor C. alocasiae changed oviposition behavior regardless of the absence or the presence of C. grandis. Therefore, we propose an alternative hypothesis that the oviposition site segregation among the three species has evolved as a consequence of the past and/or ongoing competition of larvae.","PeriodicalId":11745,"journal":{"name":"Entomological Science","volume":"25 2","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ens.12506","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46182098","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: 1

Effect of spraying behavior and body size on predators of the big head stick insect Megacrania tsudai (Phasmatodea: Phasmatidae) 喷药行为和体型对大头竹节虫捕食者的影响

IF 0.9 4区农林科学

Entomological Science Pub Date : 2022-04-22 DOI: 10.1111/ens.12508

Shun Kobayashi, Chihaya Takaoka, Hiromu Tanimoto, Satoru Arimitsu, Masako Izawa

{"title":"Effect of spraying behavior and body size on predators of the big head stick insect Megacrania tsudai (Phasmatodea: Phasmatidae)","authors":"Shun Kobayashi, Chihaya Takaoka, Hiromu Tanimoto, Satoru Arimitsu, Masako Izawa","doi":"10.1111/ens.12508","DOIUrl":"10.1111/ens.12508","url":null,"abstract":"Some insects use multiple defensive methods, although little research exists on the complementary effects of these strategies on their predators. For example, Megacrania tsudai uses crypsis to blend with its background and when threatened it uses a chemical spray. However, the effectiveness of the spraying defense is unclear, although some potential predators were known. This study aimed to reveal the effect of the secondary defenses of M. tsudai. Although the liquid chemical amount changes with growth stages, neither geckos, frogs, spiders nor insects could predate M. tsudai when it grew to a certain size, regardless of the spray effectiveness. Therefore, at the fifth instar or older growth stages of M. tsudai, its predators were limited to birds. Megacrania tsudai that did not spray their liquid chemicals were attacked by predators (other than birds) more than species that sprayed the chemicals. Birds predated all instars regardless of the amount of liquid spray. In conclusion, M. tsudai mainly uses cryptic coloration for predators using visual sense such as diurnal birds, and body size and chemical defenses for other predators, as its defensive measure. The defensive strategy of M. tsudai could relate to its life history.","PeriodicalId":11745,"journal":{"name":"Entomological Science","volume":"25 2","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ens.12508","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45888573","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: 2

Marine rove beetles in a low-salinity lake: Cafius pectoralis (Coleoptera: Staphylinidae) prey on beach hopper in brackish water 低盐度湖泊中的海洋游蝽:在半咸淡水中捕食海滩跳虱(鞘翅目:棘虫科)

IF 0.9 4区农林科学

Entomological Science Pub Date : 2022-04-01 DOI: 10.1111/ens.12504

Masakazu Hayashi

引用次数: 0

Phylogeographic analysis of Ligidium japonicum (Isopoda: Ligiidae) and its allied species reveals high biodiversity and genetic differentiation in the Kanto region, Japan 日本Ligidium japonicum(等足目:Ligiidae)及其近缘种的系统地理分析揭示了日本关东地区高度的生物多样性和遗传分化

IF 0.9 4区农林科学

Entomological Science Pub Date : 2022-03-04 DOI: 10.1111/ens.12501

Hiroki Yoshino, Kohei Kubota

{"title":"Phylogeographic analysis of Ligidium japonicum (Isopoda: Ligiidae) and its allied species reveals high biodiversity and genetic differentiation in the Kanto region, Japan","authors":"Hiroki Yoshino, Kohei Kubota","doi":"10.1111/ens.12501","DOIUrl":"10.1111/ens.12501","url":null,"abstract":"Research of the diversity and evolutionary history of Japanese soil invertebrates is scarce. Molecular data analysis can help to elucidate species classifications and evolutionary processes. We analyzed the mitochondrial cytochrome oxidase subunit I (COI) and nuclear 28S rDNA genes and the morphology of the male pleopod 2 endopod of Ligidium japonicum and its allied species from 67 sites in Hokkaido, Honshu and Shikoku, where only L. japonicum is thought to occur. We found males of the L. japonicum complex with a pleopod 2 endopod morphology matching that of the L. japonicum syntype specimens, except for the number of denticles at the inner margin. There were also more than five species that differed morphologically from the L. japonicum complex, and most of these species had allopatric distributions despite the absence of obvious barriers. A time-calibrated molecular phylogeny implied that the L. japonicum complex of the Kanto region first differentiated allopatrically in the mountains; this was followed by independent dispersal of three lineages to the Kanto Plain and Boso Peninsula, where secondary contact occurred. Two of the three sympatrically distributed L. japonicum complex lineages had a significant difference in the number of denticles at the inner margin of male pleopod 2 endopods. This variation implies the presence of cryptic species within the L. japonicum complex.","PeriodicalId":11745,"journal":{"name":"Entomological Science","volume":"25 2","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41322990","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: 1

Long-maintained social–ecological systems and genetic diversity in coexisting insects: A case of the straw-thatched roof nesting solitary wasp Symmorphus apiciornatus (Hymenoptera: Vespidae: Eumeninae) 长期维持的社会生态系统和共存昆虫的遗传多样性：以稻草屋顶筑巢的单生胡蜂Symmorphus apicioornatus为例（膜翅目：胡蜂科：真蜂亚科）

IF 0.9 4区农林科学

Entomological Science Pub Date : 2022-03-01 DOI: 10.1111/ens.12502

Goshi Sato, Jun-ichi Kojima, Hinako Horikoshi, Fuki Saito-Morooka

引用次数: 0

Yellow–green color polymorphism in males of a pea aphid clone and its genetic pattern 豌豆蚜无性系雄性黄绿色多态性及其遗传模式

IF 0.9 4区农林科学

Entomological Science Pub Date : 2022-03-01 DOI: 10.1111/ens.12503

Yang Li, Shin-ichi Akimoto

{"title":"Yellow–green color polymorphism in males of a pea aphid clone and its genetic pattern","authors":"Yang Li, Shin-ichi Akimoto","doi":"10.1111/ens.12503","DOIUrl":"10.1111/ens.12503","url":null,"abstract":"Although most aphid species living on leaves have a green body color, little is known regarding the biosynthetic pathways of green pigments. We found that a clone of the pea aphid, Acyrthosiphon pisum (Harris) produced both green- and yellow-colored males. The females of this clone were green in color, while 8.4% of the males produced were yellow. To date, yellow body color has been reported only in a single mutant clone in A. pisum. To explore the genetic pattern of yellow body color, green or yellow males were mated with green females of the same clone. The hatchability of the eggs sired by yellow males (26.2%) was less than half that of the eggs sired by green males (79.0%). The hatched foundresses of both groups were all green, with no yellow foundresses. Because aphids have an XX-XO sex determination system, color polymorphism in males suggests that male body color may be governed by an X-linked locus. If females possess heterozygosity at the putative locus, they can produce alternative phenotypes in males. The small proportion of yellow males and absence of yellow foundresses imply that the allele responsible for yellow body color has a deleterious effect. The present study suggests that this clone could be used to elucidate the biosynthetic pathways and underlying genetics of green pigments in aphids.","PeriodicalId":11745,"journal":{"name":"Entomological Science","volume":"25 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44830331","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

Predation of the Balkan frog Pelophylax kurtmuelleri (Gayda, 1940) (Anura: Ranidae) by the giant water bug Lethocerus patruelis (Stål, 1854) (Hemiptera: Heteroptera: Belostomatidae) 巨型水虫Lethocerus patruelis（Stål，1854）对巴尔干蛙Pelophilax kurtmuelleri（Gayda，1940）（无尾蛙：蛙科）的捕食

IF 0.9 4区农林科学

Entomological Science Pub Date : 2022-01-19 DOI: 10.1111/ens.12499

Apostolos Christopoulos, Hera Daskalaki, Konstantinos Vlachopoulos, Panayiotis Pafilis

引用次数: 0

Laboratory rearing of Hydrochus japonicus (Coleoptera: Hydrochidae) suggests larvae live at the water bottom 日本水鳖的实验室饲养（鞘翅目：水鳖科）表明幼虫生活在海底

IF 0.9 4区农林科学

Entomological Science Pub Date : 2022-01-17 DOI: 10.1111/ens.12498

Masakazu Hayashi, Ryosuke Morimoto

引用次数: 1

First report of the invasive crop pest Stenocranus pacificus (Hemiptera: Delphacidae) in temperate Asia 标题亚洲温带地区入侵作物害虫太平洋窄翅虫(半翅目:飞燕科)首次报道

IF 0.9 4区农林科学

Entomological Science Pub Date : 2022-01-13 DOI: 10.1111/ens.12500

Toshihisa Yashiro, Sachiyo Sanada-Morimura

{"title":"First report of the invasive crop pest Stenocranus pacificus (Hemiptera: Delphacidae) in temperate Asia","authors":"Toshihisa Yashiro, Sachiyo Sanada-Morimura","doi":"10.1111/ens.12500","DOIUrl":"10.1111/ens.12500","url":null,"abstract":"Numerous delphacid planthopper species are major pests of economically important and widely cultivated crops (i.e. rice, corn, and sugarcane). These insects have the potential to become serious crop pests in areas where they have either naturally migrated or been newly introduced. The white-bellied planthopper, Stenocranus pacificus Kirkaldy, 1907, originally known from tropical South Pacific islands, appeared in tropical and subtropical Asia in the early years of the 21st century. Since then, S. pacificus has become a serious pest of corn in some Southeast Asian countries, although it also feeds on rice, sugarcane, sorghum, and other grasses. Here, we report the presence of S. pacificus in mainland Japan, representing the first record of this species in temperate Asia. Seven male and 17 female adult individuals collected in Kumamoto Prefecture in 2019 and 2020 were identified as S. pacificus based on their morphological characteristics and mitochondrial COI sequences. In addition, molecular phylogenetic analysis showed that S. pacificus formed a distinct clade from other Stenocranus species, indicating uncertainty in its generic assignment. Although crop damage by S. pacificus has not yet been reported from temperate regions, given its wide range of plant hosts and the potential for future range expansions, damaged crops in Asia, including in temperate regions, should be monitored for the presence of this species.","PeriodicalId":11745,"journal":{"name":"Entomological Science","volume":"25 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46382604","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

A simple method to disperse eggs from lepidopteran scalelike egg masses and to observe embryogenesis 从鳞翅目鳞片状卵块中分散卵子并观察胚胎发生的简单方法

IF 0.9 4区农林科学

Entomological Science Pub Date : 2022-01-11 DOI: 10.1111/ens.12497

Hiroshi Arai, Yuna Ishitsubo, Madoka Nakai, Maki N. Inoue

引用次数: 2