Neotropical EntomologyPub Date : 2024-04-01Epub Date: 2024-03-06DOI: 10.1007/s13744-024-01129-6
Leonardo Polizeli, Ângelo Parise Pinto
{"title":"A Taxonomic Revision of the South American Trilobite Cockroaches of Parahormetica Brunner von Wattenwyl 1865 (Blattodea: Blaberidae), with Description of Parahormetica museunacional sp. nov. from the Atlantic Forest.","authors":"Leonardo Polizeli, Ângelo Parise Pinto","doi":"10.1007/s13744-024-01129-6","DOIUrl":"10.1007/s13744-024-01129-6","url":null,"abstract":"<p><p>The taxonomically intricate genus of trilobite cockroaches, Parahormetica Brunner von Wattenwyl, 1865, is revised based on a comparative morphological analysis. The goals of this study are to review the nomenclature, propose hypotheses about specific delimitation, and provide diagnoses to allow identification of the taxonomic units in the genus. Based on the revised status of Parahormetica, we transferred Parahormetica hylaeceps Miranda-Ribeiro, 1936, and Parahormetica punctata Saussure, 1873, to the genus Bionoblatta Rehn, 1940. Therefore, the genus includes now four species of giant cockroaches which are predominantly distributed on the Atlantic Forest: Parahormetica bilobata (Saussure, 1864), Parahormetica cicatricosa Saussure, 1869, Parahormetica monticollis (Burmeister, 1838), and Parahormetica museunacional sp. nov. (holotype male deposited in DZUP: Brazil, Paraná). Diagnoses, key, distribution maps, images of living, non-type, and type specimens are made available. Our results make clear that the status and limits among Brachycolini genera pending a full revision.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140039837","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}
Neotropical EntomologyPub Date : 2024-04-01Epub Date: 2024-01-16DOI: 10.1007/s13744-023-01112-7
Vanina Anadina Reche, María Josefina Buonocore Biancheri, Luciana Marina Cao, Lorena Del Carmen Suárez, Sergio Marcelo Ovruski, Daniel Santiago Kirschbaum, Flávio Roberto Mello Garcia, Fabiana Edith Gallardo
{"title":"Survey on Drosophila suzukii and Ceratitis capitata (Diptera: Drosophilidae, Tephritidae) and Associated Eucoilinae Species (Hymenoptera: Figitidae) in Northwestern Argentina. First Record of Dicerataspis grenadensis and Leptopilina boulardi as Parasitoids of D. suzukii.","authors":"Vanina Anadina Reche, María Josefina Buonocore Biancheri, Luciana Marina Cao, Lorena Del Carmen Suárez, Sergio Marcelo Ovruski, Daniel Santiago Kirschbaum, Flávio Roberto Mello Garcia, Fabiana Edith Gallardo","doi":"10.1007/s13744-023-01112-7","DOIUrl":"10.1007/s13744-023-01112-7","url":null,"abstract":"<p><p>The Southeast Asian-native Drosophila suzukii (Matsumura) (Diptera: Drosophilidae), also known as \"spotted-wing Drosophila,\" is one of the most globally invasive agricultural species. Although D. suzukii is a pest spread throughout all the Argentinian fruit-growing regions, few information has been published on its impact on local fruit production. Parasitoid species associated with D. suzukii in Argentina belong to Pteromalidae (Chalcidoidea), Diapriidae (Diaprioidea), both attacking host pupae, and Figitidae (Cynipoidea), which attack host larvae. Nine Eucoilinae (Figitidae) species, belonging to Dicerataspis, Dieucoila, Euxestophaga, Ganaspis, Hexacola, and Leptopilina genera, have been associated with D. suzukii in Argentina. Ceratitis capitata (Wiedemann), commonly known as \"medfly,\" is native to Africa and has a worldwide distribution, covering many tropical, subtropical, and temperate regions. In Argentina, C. capitata has been associated with several native hymenopterous parasitoids belonging to Braconidae (Ichneumonioidea), Eulophidae (Chalcidoidea), Pteromalidae, Diapriidae, and Figitidae families. Only two eucoline species, Ganaspis pelleranoi (Brèthes) and Leptopilina haywardi (Blanchard) have been related to medfly in Argentina. We report new trophic associations between the parasitoids Dicerataspis grenadensis Ashmead and Leptopilina boulardi (Barbotin, Carton and Kelner-Pillault) and D. suzukii, and between the parasitoid Odontosema albinerve Kieffer and C. capitata, after surveys conducted in Tucumán, northwestern Argentina. An annotated checklist and a taxonomic key of Eucoilinae associated with both invasive pests, in Argentina, are also provided.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139478969","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}
Neotropical EntomologyPub Date : 2024-04-01Epub Date: 2024-02-12DOI: 10.1007/s13744-023-01126-1
Sabrina Juvenal de Oliveira, Vinícius Ferraz Nascimento, Letícia Barbosa de Lacerda, Joice Mendonça de Souza, Dagmara Gomes Ramalho, Yasmin Esteves Izidro, Sergio Antonio De Bortoli
{"title":"Predator-Prey Interaction Between Xylocoris sordidus (Hemiptera: Anthocoridae) and Enneothrips enigmaticus (Thysanoptera: Thripidae).","authors":"Sabrina Juvenal de Oliveira, Vinícius Ferraz Nascimento, Letícia Barbosa de Lacerda, Joice Mendonça de Souza, Dagmara Gomes Ramalho, Yasmin Esteves Izidro, Sergio Antonio De Bortoli","doi":"10.1007/s13744-023-01126-1","DOIUrl":"10.1007/s13744-023-01126-1","url":null,"abstract":"<p><p>The peanut thrips, Enneothrips enigmaticus (Thysanoptera: Thrypidae), is an important pest of the peanut (Arachis hypogaea) in South America. Due to concerns about the environment and human health induced by the extensive use of pesticides in the management control of pests, environmentally and friendlier tactics must be targeted. Thus, this study investigates, for the first time, the behavior of Xylocoris sordidus (Hemiptera: Anthocoridae) as a biological control agent for E. enigmaticus. The methodology included no-choice tests to assess whether the predation rate varies according to the developmental stage of the prey, as well as the predator's developmental stage with the highest predation capacity. Additionally, an analysis of the functional response of adult and 5th instar nymphs of X. sordidus exposed to different densities of E. enigmaticus nymphs (1, 2, 4, 8, 16, and 32) was conducted. The results confirm the predation of peanut thrips by X. sordidus, with a higher predation rate in the nymphal stages of the prey. There was no difference in predation capacity between predator nymphs and adults, and exhibiting a type II functional response. Therefore, the potential of X. sordidus as a biological control agent for E. enigmaticus is confirmed, showing the importance of adopting measures to preserve this predator in peanut crops.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139723477","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}
Neotropical EntomologyPub Date : 2024-04-01Epub Date: 2024-01-16DOI: 10.1007/s13744-023-01115-4
Thaís Fagundes Matioli, Juliano de Bastos Pazini, Mariana Rosa da Silva, Emile Dayara Rabelo Santana, Pedro Takao Yamamoto
{"title":"Sublethal and Transgenerational Effects of Reduced-Risk Insecticides on Macrolophus basicornis (Hemiptera: Miridae).","authors":"Thaís Fagundes Matioli, Juliano de Bastos Pazini, Mariana Rosa da Silva, Emile Dayara Rabelo Santana, Pedro Takao Yamamoto","doi":"10.1007/s13744-023-01115-4","DOIUrl":"10.1007/s13744-023-01115-4","url":null,"abstract":"<p><p>Reduced-risk insecticides and mirid predators have been used to control Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) in tomato crops. However, even when causing low mortality to the beneficial insects, these products might cause side effects. This study investigated the sublethal and transgenerational effects of buprofezin, cyantraniliprole, and spiromesifen on Macrolophus basicornis (Stal) (Hemiptera: Miridae). After 72 h of exposure of third-instar nymphs and adults to residues on tomato leaves, adult couples were formed and kept in cages with residue-free tomato leaves. The leaves were changed every 48 h and the offspring were assessed in 6 different periods. Body size was assessed by measuring the hind-tibia length of adults (F<sub>0</sub>) from exposed nymphs and in three different offspring groups. None of the insecticide residues caused a reduction on offspring populations or affected the body size of adults in generation F<sub>0</sub>. Regardless, buprofezin and spiromesifen reduced the tibia length of adults (F<sub>1</sub>) from exposed nymphs assayed in the third mating period. Cyantraniliprole did not affect any parameter and could be recommended for control of B. tabaci in association with M. basicornis releases. This study may contribute to future field assays of the compatibility of these insecticides with M. basicornis.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139478965","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}
Neotropical EntomologyPub Date : 2024-04-01Epub Date: 2024-01-12DOI: 10.1007/s13744-023-01123-4
Júlia Karla de Albuquerque Melo Xavier, Amanda de Jesus Alves Miranda, Samuel Dos Santos Soares Buna, Claudia Quintino da Rocha, Aldilene da Silva Lima
{"title":"Neotropical Flora's Contribution to the Development of Biorational Products for Drosophila suzukii Control.","authors":"Júlia Karla de Albuquerque Melo Xavier, Amanda de Jesus Alves Miranda, Samuel Dos Santos Soares Buna, Claudia Quintino da Rocha, Aldilene da Silva Lima","doi":"10.1007/s13744-023-01123-4","DOIUrl":"10.1007/s13744-023-01123-4","url":null,"abstract":"<p><p>Essential oils (EOs) produced by aromatic plants belonging to different families, such as Asteraceae, Lamiaceae, Lauraceae, Myrtaceae, and Piperaceae, are generally suggested as potential sources of new molecules with insecticidal activity. The EOs are constituted bioactive molecules that may have to control Drosophila suzukii (Matsumura), a serious economic invasive pest of small fruits worldwide. Currently, the control strategy against D. suzukii depends especially on treatment with synthetic insecticides. Due to impacts to human health and the environment, efforts have been made to seek efficient insecticides in chemical pest control. Thus, sixty-five oils extracted from plants were selected to find new alternative types of insecticides active against D. suzukii. The monoterpenes, such as limonene, α-pinene, 1,8-cineole, linalool, menthol, geranial, and neral, were the most representative, which stand out for their insecticidal efficiency. The OEs demonstrated to be used in the management of D. suzukii, thus being an effective strategy to control this pest, ensuring crop protection and agricultural sustainability. Therefore, the substitution by natural products or eco-friendly pesticides instead of synthetic pesticides represents a notable option to mitigate harmful effects on human health and the environment.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139425171","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}
Neotropical EntomologyPub Date : 2024-04-01Epub Date: 2024-01-04DOI: 10.1007/s13744-023-01118-1
María Josefina Buonocore-Biancheri, Lorena Del Carmen Suárez, Marcos Darío Ponssa, Daniel Santiago Kirschbaum, Flávio Roberto Mello Garcia, Sergio Marcelo Ovruski
{"title":"Assessing Natural Incidence of Resident Pupal Parasitoids on the Drosophila suzukii (Diptera: Drosophilidae) Population in Non-crop Fruits.","authors":"María Josefina Buonocore-Biancheri, Lorena Del Carmen Suárez, Marcos Darío Ponssa, Daniel Santiago Kirschbaum, Flávio Roberto Mello Garcia, Sergio Marcelo Ovruski","doi":"10.1007/s13744-023-01118-1","DOIUrl":"10.1007/s13744-023-01118-1","url":null,"abstract":"<p><p>Drosophila suzukii (Matsumura) (Diptera: Drosophilidae), world-renowned as spotted-wing drosophila, is an invasive pest mainly affecting healthy, soft and stone fruit crops throughout Argentinian fruit-growing regions. Natural environments overgrown by exotic feral host plants apparently favour D. suzukii proliferation. This is common in the subtropical northwestern Argentina's berry-producing region. An assemblage of resident parasitoid species has been associated with D. suzukii in crop and non-crop areas of Tucumán, the Argentina's leading berries producer and exporter. Consequently, the hypothesis that the combined action of two pupal parasitoid species, Pachycrepoideus vindemiae Rondani (Hymenoptera: Pteromalidae) and Trichopria anastrephae Lima (Hymenoptera: Diapriidae), occurring in non-crop fruit areas, has a significant impact on D. suzukii natural regulation in such invaded habitats was tested. A survey of D. suzukii puparia from both feral peach [Prunus persica (L.) Batsch] (Rosaceae) and guava (Psydium guajava L.) (Myrtaceae) fallen fruits and soil surrounding them was performed in a wilderness area of Tucumán. Abundance of D. suzukii and associated parasitoids, and parasitism levels were assessed. Whole of 3437 D. suzukii puparia were recovered; 78% and 22% were surveyed from fruits and soil underneath the fruit, respectively. Tested fruits are important D. suzukii multiplying hosts. Both P. vindemiae and T. anastrephae accounted for 99.8% of total parasitoid individuals. Pupal parasitoids contribute to the D. suzukii natural mortality, as they killed a quarter of all puparia. Mostly T. anastrephae foraged on host puparia located in the fruit and P. vindemiae in both microhabitats. This information supports an augmentative biological control strategy in non-crop areas.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139087783","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}
Analía Sforzín, Alejandro Lucia, Raúl A. Alzogaray
{"title":"Two Lactones Non-toxic to Humans Are Effective Repellents for the German Cockroach","authors":"Analía Sforzín, Alejandro Lucia, Raúl A. Alzogaray","doi":"10.1007/s13744-024-01139-4","DOIUrl":"https://doi.org/10.1007/s13744-024-01139-4","url":null,"abstract":"<p>Lactones are cyclic esters of hydroxy carboxylic acids, present in several fruits and animals consumed by humans. There is evidence that some lactones modify insect behavior. The aim of the present study was to evaluate the repellent effect of four lactones (γ- and δ-nonalactone, and γ- and δ-dodecalactone) in first instar nymphs of the German cockroach, <i>Blattella germanica</i> (Linnaeus). To assess repellency, a nymph was placed on a circle of filter paper, half of which had been treated with lactone dissolved in acetone and the other half with acetone alone. The behavior of the nymph was recorded and the time the nymph spent in each half of the paper was quantified using Ethovision XT 10.1 software. Values of Distribution Coefficient (<i>DC</i>) were calculated: <i>DC</i> = (<i>Tt</i> − <i>TA</i>) / <i>Tt</i>, where <i>Tt</i> is the experimental time and <i>TA</i> is the time the nymph spent in the area treated with the repellent agent. <i>DC</i> can vary between 0 and 1. Values significantly higher than 0.5 indicate repellency. N,N-diethyl-meta-toluamide (DEET) was used as a positive control. DEET, δ- and γ-nonalactone caused repellency as from 77.9 µg/cm<sup>2</sup>, whereas γ- and δ-dodecalactone had a repellent effect starting at 779.0 µg/cm<sup>2</sup>. The values of <i>DC</i> for these concentrations were 0.89 (DEET), 0.86 (γ-nonalactone), 0.87 (δ-nonalactone), 0.83 (γ-dodecalactone), and 0.72 (δ-dodecalactone). To our knowledge, this is the first report of repellency produced by lactones in the German cockroach. This work allowed to identify two lactones that have a repellent effect similar to DEET.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140114892","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}
Zhaoyun Lyu, Min Feng, Lei Nie, Ting Zhou, Kai Yu, Lili Li, Xingyuan Men, Meng Sun, Yi Yu
{"title":"Evaluation of the Pollination Efficiency of Apple Trees by Osmia excavata Alfken (Hymenoptera: Megachilidae)","authors":"Zhaoyun Lyu, Min Feng, Lei Nie, Ting Zhou, Kai Yu, Lili Li, Xingyuan Men, Meng Sun, Yi Yu","doi":"10.1007/s13744-023-01122-5","DOIUrl":"https://doi.org/10.1007/s13744-023-01122-5","url":null,"abstract":"<p>The mason bee <i>Osmia excavata</i> Alfken is an apple pollinating insect widely distributed in northern China, in order to effectively utilize the mason bee and improve the pollination rate of apples, there is a need to evaluate the pollination efficiency of the bees. This study evaluated the pollination efficiency of the mason bee on apple orchards in Jinan and Yantai, Shandong Province, China. The study compared natural pollination areas and pollination areas with different release densities of <i>O. excavata</i> in terms of the effects of bee density, timing of pollination, and distance effects on fruit set rate, fruit shape index, fruit shape skewness, fruit soluble solids content, and fruit firmness. The optimal release density of bees was 6000 cocoons per hectare, resulting in the highest fruit setting rate of apple lateral flowers. From 07:00 to 14:00 was the best time for bee pollination. The optimal distance of hives from apple trees for pollination by <i>O. excavata</i> was 60 m. Single fruit weight was significantly higher and fruit unsymmetrical rate, partial slope and hardness were all significantly lower at the release densities of 6000 or 12000 cocoons per hectare compared with 3000 cocoons per hectare or under natural pollination conditions. There was no significant difference in the content of soluble solids under different release densities. Thus, the radius of 60 m from the hive was the effective pollination range and 6000 cocoons per hectare of mason bees could ensure the fruit quality of apple.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140114898","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":"Towards Sustainable Pest Management: Toxicity, Biochemical Effects, and Molecular Docking Analysis of Ocimum basilicum (Lamiaceae) Essential Oil on Agrotis ipsilon and Spodoptera littoralis (Lepidoptera: Noctuidae)","authors":"","doi":"10.1007/s13744-024-01137-6","DOIUrl":"https://doi.org/10.1007/s13744-024-01137-6","url":null,"abstract":"<h3>Abstract</h3> <p>Over the last decade, essential oils (EOs) have become potential ingredients for insecticide formulations due to their widespread availability and perceived safety. Therefore, this study aimed to evaluate the toxicity and biochemical efficacy of basil (<em>Ocimum basilicum</em>) (Lamiaceae) against two destructive pests Noctuidae, <em>Agrotis ipsilon</em> (Hufnagel) and <em>Spodoptera littoralis</em> (Boisduval) (Lepidoptera: Noctuidae). In addition, a molecular docking study was performed to gain insight into the binding pattern between glutathione S-transferase (GST) and linalool, the main component of EO. GC–MS analysis of <em>O. basilicum</em> EO revealed that linalool is the most abundant compound (29.34%). However, the toxicity tests showed no significant difference between the values of LC<sub>50</sub> of <em>O. basilicum</em> EO to <em>A. ipsilon</em> and <em>S. littoralis</em>. On the other hand, the sublethal experiments indicated that treating the second instar larvae with LC<sub>15</sub> or LC<sub>50</sub> values of <em>O. basilicum</em> EO significantly prolonged the larval duration in both insects, compared to the control. Regarding the biochemical effect of <em>O. basilicum</em> EO, the treatments significantly impacted the activity of detoxification enzymes. A notable elevation in glutathione S-transferase (GST) activity was recorded in <em>A. ipsilon</em> larvae compared with a reduction in <em>S. littoralis</em> larvae. The molecular docking analysis revealed that linalool bonded with the amino acid serine (SER 9) of GST, indicating its binding affinity with the enzyme. The obtained results could offer valuable insights into the mode of action of <em>O. basilicum</em> and can encourage the adoption of sustainable pest control practices that incorporate essential oils.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140114829","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}
Mariana C. Trillo, Anita Aisenberg, Mariella E. Herberstein, Leticia Bidegaray-Batista
{"title":"Amazons Are Back: Absence of Males in a Praying Mantis from Uruguayan Savannas","authors":"Mariana C. Trillo, Anita Aisenberg, Mariella E. Herberstein, Leticia Bidegaray-Batista","doi":"10.1007/s13744-023-01114-5","DOIUrl":"https://doi.org/10.1007/s13744-023-01114-5","url":null,"abstract":"<p>With a broad distribution throughout South America, <i>Brunneria subaptera</i> (Saussure) (Coptopterygidae) is the most abundant praying mantis species in Uruguay, mostly associated with grassland vegetation. Their body coloration can vary between green or brown sepia. The recent catalog of Uruguayan mantids showed that all specimens of <i>B. subaptera</i> from the collections in Uruguay were females, suggesting an absence of males in natural populations. The aim of this study was to determine the occurrence of female-only populations of <i>B. subaptera</i> in Uruguay. Moreover, we analyzed the genetic variation and estimated the time of the most recent common ancestor of the species. We performed bimonthly samplings in two localities in Uruguay for 1 year and we sexed the individuals. We extracted DNA from the abdominal tissue of adult females and sequenced a fragment of the mitochondrial <i>cox1</i> gene to assess the genetic diversity and to estimate diversification times. We did not find any males in either of the studied localities. The age estimates revealed a recent origin of the species (2.33 Ma), and there was no genetic differentiation between the individuals from Uruguayan localities. This absence of males of <i>B. subaptera</i> documented in the sampled locations suggests that the species reproduces by thelytokous parthenogenesis. This study opens promising venues for future research into reproductive strategies and polymorphism in South-American praying mantises that inhabit one of the largest areas of grasslands in the world, currently under dramatic deterioration and reduction.</p>","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139669611","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}