Hymenoptera: Chalcidoidea
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Persistence of the Exotic Mirid Nesidiocoris Tenuis (Hemiptera: Miridae) in South Texas
insects Article Persistence of the Exotic Mirid Nesidiocoris tenuis (Hemiptera: Miridae) in South Texas Gabriela Esparza-Diaz 1,*, Thiago Marconi 1 , Carlos A. Avila 1,2 and Raul T. Villanueva 3,* 1 Texas A&M AgriLife Research, 2415 East Highway 83, Weslaco, TX 78596, USA; [email protected] (T.M.); [email protected] (C.A.A.) 2 Department of Horticultural Sciences, Texas A&M University, College Station, TX 77843, USA 3 University of Kentucky Research & Education Center, Department of Entomology, 348 University Drive, Princeton, KY 42445, USA * Correspondence: [email protected] (G.E.-D.); [email protected] (R.T.V.); Tel.: +1-(956)-9987281 (G.E.-D.); +1-(270)-365-7541-x21335 (R.T.V.) Simple Summary: The Rio Grande Valley is one of the most productive agricultural areas in the U.S, located in the southernmost part of Texas. In October 2013, we detected an exotic species of plant bug occurring in this region. It was identified as Nesidiocoris tenuis, which had a phytophagous behavior on tomato plants in the absence of its preferred prey. We confirmed the species with morphological and genetic tests. We monitored populations of N. tenuis in its introduction phase in commercial fields and corroborated its establishment in research fields for three consecutive years. The presence of N. tenuis could establish a new relationship of trophic insects to produce vegetables in the Rio Grande Valley. However, it is unknown whether the presence of N. tenuis in the Rio Grande Valley can help control pests of economic importance, such as whiteflies in cotton, or become a pest on sesame, which is an emerging crop in this region. -
Interactions Between Citrus Psylla, Trioza Erytreae (Hem
ENTOMOPHAGA37 (4), 1992, 599-608 INTERACTIONS BETWEEN CITRUS PSYLLA, TRIOZA ERYTREAE (HEM. TRIOZIDAE), AND SPIDERS IN AN UNSPRA YED CITRUS ORCHARD IN THE TRANSVAAL LOWVELD M. A.VAN DEN BERG, C), ANSm S. DIPPENAAR-SHOEMAN e), VALERIE E. DEACON C) & SUSAN H. ANDERSON C) C) Citrus and Subtropical Fruit Research Institute, Private Bag X 11208, Nelspruit 1200, South Africa ~) Plant Protection Research Institute, Private Bag X 134, Pretoria 0001, South Africa During a two year survey, a total of 3,054 spiders represented by 21 families were sampled in an unsprayed citrus orchard in the Transvaal Lowveld. Numeri- cally the Salticidae was the dominant family (34.4 %) followed by the Theridiidae (21.9 %), Thomisidae (11.9 %), Araneidae (7.9 %), Clubionidae (7.0 %) and the Tetragnathidae (3.7 %). Eighteen species of spiders were observed to prey on citrus psylla, Trioza erytreae (Del Guercio) (Hemiptera: Triozidae), while six species trap nymphs and adults under their retreats and webs. There were significant positive correlations between the weekly psylla populations and the weekly populations of web-building spiders and wandering spiders present one to four weeks later but no significant correlation between the weekly spider popula- tions and the weekly psylla populations present one to five weeks later. This seems to indicate that while spiders are unable to keep citrus psylla populations at acceptable low levels, they may contribute in reducing their numbers. KEY-WORDS: Araneae, citrus psylla, spiders, Trioza erytreae. Many of the pests and potential pests that occur on citrus in South Africa are under effective biological control (Bedford, 1978). However, the natural enemies of a few others, like the citrus psylla, are unable to keep these pests below the economical threshold. -
An Autoparasitoid Wasp, Inferior at Resource Exploitation, Outcompetes Primary Parasitoids by Using Competitor Females to Produce Males
CORE Metadata, citation and similar papers at core.ac.uk Provided by Biblioteca Digital do IPB Ecological Entomology (2020), DOI: 10.1111/een.12846 An autoparasitoid wasp, inferior at resource exploitation, outcompetes primary parasitoids by using competitor females to produce males ROSALINA MARRAO,1 ENRIC FRAGO,2 JOSÉ A. PEREIRA1 and ALEJANDRO TENA3 1CIMO/Escola Superior Agrária, Instituto Politécnico de Bragança, Bragança, Portugal, 2Centre de Biologie pour la Gestion des Populations, CIRAD, UMR CBGP, F-34398 Montpellier, France and 3Centro de Protección Vegetal y Biotecnología, Instituto Valenciano de Investigaciones Agrarias, IVIA, Spain Abstract. 1. Autoparasitoids are intraguild consumers that attack and kill heterospe- cific and conspecific parasitoids as well as immature stages of hemipteran hosts,such as aphids, whiteflies and soft scales. Field experiments assessing the importance of interspecific competition between autoparasitoids and primary parasitoids, as well its impact on herbivore suppression, are scarcely found in the ecological literature. 2. Using field data from 40 olive orchards, this study examined the mechanisms that regulate: (i) the interspecific competition between primary parasitoids of the genus Metaphycus and the autoparasitoid Coccophagus lycimnia; and (ii) the density of their shared herbivore host, the soft scale Saissetia oleae. 3. Metaphycus parasitoids used smaller hosts than C. lycimnia, yet did not outcompete C. lycimnia. On the other hand, C. lycimnia preferred to use Metaphycus females as secondary hosts for producing males rather than their own females. This preference might explain why the autoparasitoid negatively affected the density of the primary parasitoids. 4. Parasitism by the autoparasitoid C. lycimnia at the beginning of the season was the sole variable positively related to host mortality throughout the season, showing its greater effect on herbivore suppression. -
Black Scale Saissetia Oleae (Olivier, 1791)
EENY620 Black Scale Saissetia oleae (Olivier 1791) (Insecta: Hemiptera: Coccoidea: Coccidae)1 Morgan A. Byron, Jennifer L. Gillett-Kaufman, and Sandra A. Allan2 Introduction Synonymy The black scale, Saissetia oleae (Olivier 1791) (Hemiptera: Coccus oleae Olivier (1791) (ITIS 2014) Coccidae) is an important pest of citrus and olive trees. Originally from South Africa, this scale is now distributed Distribution worldwide. In Florida, black scale is found on citrus (Citrus Black scale has a cosmopolitan distribution, with records in spp.), cultivated olive (Olea europaea L.), avocado (Persea Europe, Asia, Africa, Australasia, the Pacific Islands, and in americana Mill.), and many popular landscape plants. the Americas (CABI 1954). It is likely that black scale, like many invasive pests, was imported to the United States on infested nursery plants. Based on their small size and the unique life history of scale Biology insects, these insects are difficult to detect and control. Female black scales deposit eggs from April to September and, like other species in the genus Saissetia, protect them beneath the body until they hatch. Each female can lay from a few hundred to over 2,500 eggs (Tena et al. 2007). Incubation time for the eggs varies due to temperature, with eggs laid in the summer hatching in 16 days and eggs in the winter taking up to six weeks to hatch. Black scale typically has one or two generations per year, but three generations have been observed in certain regions. Reproduction is largely parthenogenetic (a type of asexual reproduction where eggs develop without fertilization), although males Figure 1. Adult female black scales, Saissetia oleae (Olivier) on have been reported. -
ENDOCRINE CONTROL of VITELLOGENESIS in BACTERICERA COCKERELLI (HEMIPTERA: TRIOZIDAE), the VECTOR of 'ZEBRA CHIP' a Dissertat
ENDOCRINE CONTROL OF VITELLOGENESIS IN BACTERICERA COCKERELLI (HEMIPTERA: TRIOZIDAE), THE VECTOR OF ‘ZEBRA CHIP’ A Dissertation by FREDDY ANIBAL IBANEZ-CARRASCO Submitted to the Office of Graduate and Professional Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Chair of Committee, Cecilia Tamborindeguy Committee Members, Ginger Carney Patricia Pietrantonio Robert Coulson Head of Department, David Ragsdale August 2017 Major Subject: Entomology Copyright 2017 Freddy Ibanez-Carrasco ABSTRACT The potato psyllid, Bactericera cockerelli (Šulc), is a phloem-feeding insect with preference for Solanaceae. This insect species transmits the pathogenic bacteria ‘Candidatus Liberibacter solanacearum’ (Lso) the causative agent of zebra chip, an important disease of commercial potatoes in several countries worldwide. The classification of psyllids among the most dangerous vectors has promoted their study, but still many biological processes need to be investigated. As a first step towards the elucidation of vitellogenesis in B. cockerelli, two candidate vitellogenin transcripts were identified and its expression was analyzed in different life stages. Our results showed that in virgin females, BcVg1-like expression increased up to 5 days old; while mating significantly upregulated its expression in 5- and 7-day-old females and also induced oviposition. BcVg6-like transcript was expressed at similar level between females and males and it was not up-regulated by mating. To elucidate the role of juvenile hormone in B. cockerelli Vgs expression, topical applications of juvenile hormone III (JH III) were performed on virgin females, resulting in an upregulation of BcVg1-like expression and an increase in the number of mature oocytes observed in female reproductive organs. -
Crapemyrtle Bark Scale Acanthococcus (=Eriococcus) Lagerstroemiae
Crapemyrtle Bark Scale Acanthococcus (=Eriococcus) lagerstroemiae Jim Robbins, Univ. of Ark. CES, Bugwood.org, #5521505 The crapemyrtle bark scale (Acanthococcus (=Eriococcus) lagerstroemiae) is in the family Eriococcidae (or Acanthococcidae, as the taxonomy of this family is still being debated). This group is in the superfamily Coccoidea (scale insects) and the order Hemiptera (true bugs). The primary host in North America, crapemyrtle, Lagerstroemia spp., are deciduous flowering trees popular in ornamental landscapes. They are top-sellers in the nursery trade, with the annual wholesale value estimated to be $66 million in 2014. Based on urban tree inventories of several major cities in the southeastern U.S., crapemyrtle are among the most common landscape trees planted in this region. Resources - Cai, X., H. Dou, M. Gu, M. Merchant, and E. Vafaie. 2015. Update on crapymyrtle bark scale. Proceedings of the 2015 Annual Meeting of the International Plant Propagators’ Society. 1140: 415–418. - Wang, Z., Y. Chen, M. Gu, E. Vafaie, M. Merchant, and R. Diaz. 2016. Crapemyrtle bark scale: A new threat for crapemyrtles, a popular landscape plant in the U.S. Insects. 7: 33–34. 1 Crapemyrtle Bark Scale Close-up of a crapemyrtle bark scale • In the group of insects infestation, showing the fuzzy, felt-like known as felt scales covering of the adult female scales • Native to Asia • First report in the US – 2004 in Richardson, Texas (Dallas County) • Formerly known as Eriococcus lagerstroemiae Kuwana Gary Brooks, Bayer CropScience, Bugwood.org #5523058 The crapemyrtle bark scale (abbreviated as CMBS) belongs to a group of scale insects known as felt scales or bark scales. -
Hyperparasitoids As New Targets in Biological Control in a Global Change Context Kévin Tougeron, a Tena
Hyperparasitoids as new targets in biological control in a global change context Kévin Tougeron, A Tena To cite this version: Kévin Tougeron, A Tena. Hyperparasitoids as new targets in biological control in a global change context. Biological Control, Elsevier, 2019, 130, pp.164-171. 10.1016/j.biocontrol.2018.09.003. hal- 01929186 HAL Id: hal-01929186 https://hal-univ-rennes1.archives-ouvertes.fr/hal-01929186 Submitted on 21 Nov 2018 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Hyperparasitoids as new targets in biological control in a global change context Authors and affiliations: The authors contributed equally to this work. Tougeron K.1, 2 & Tena A.3 1 The University of Wisconsin – La Crosse, Department of Biology, La Crosse, Wisconsin, United States of America, 1725 State street, 54601 2 Univ Rennes, CNRS, ECOBIO (Ecosystèmes, biodiversité, évolution) - UMR 6553, 263 Avenue du Général Leclerc, 35000 Rennes, France.) 3 Instituto Valenciano de Investigaciones Agrarias, Unidad Asociada de Entomología UJI-IVIA, Moncada, València 46113, Spain. Corresponding author: [email protected] Cite as: Tougeron K. & Tena A. Hyperparasitoids as new targets in biological control in a global change context. -
A Chromosomal Study of 11 Species of Psyllinea (Insecta: Homoptera)
© Comparative Cytogenetics, 2007 . Vol. 1, No. 2, P. 149-154. ISSN 1993-0771 (Print), ISSN 1993-078X (Online) A chromosomal study of 11 species of Psyllinea (Insecta: Homoptera) E.S. Labina Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, St. Petersburg 199034, Russia. E-mail: [email protected] Abstract. Meiotic karyotypes in males of 10 species (assigned to 5 genera and 3 subfamilies) of the family Psyllidae and one species of the family Triozidae are described for the first time. The first data on the genus Crastina are presented. All the species were shown to exhibit the usual (modal) psyllid karyotype of 2n = 24 + X except for Craspedolepta villosa and Crastina myricariae, in which 2n = 22 + X and 2n = 24 + XY are found respectively. Key words: Psyllinea, karyotypes, sex chromosome systems. INTRODUCTION maining three families only few species were in- vestigated: 3 in Calophyidae, 2 in Carsidaridae, Psyllids or jumping plant-lice (Homoptera, and 4 in Homotomidae. In the family Phaco- Sternorrhyncha, Psyllinea) are widely distributed pteronidae no species has been examined cytoge- mono- or oligophagous phloem-sucking insects netically. feeding on dicotyledonous plants. This suborder Psyllids possess holokinetic chromosomes that includes approximately three thousands species are characteristic for Homoptera as a whole. The (Burckhardt, Kofler, 2004). Many psyllids are psyllid karyotypes show high uniformity. One hun- known to be pests of cultivated plants. dred and sixty of the studied species (i.e., approxi- Although in the last few decades there has been mately 85%) exhibit 24 autosomes and one or two considerable study of the taxonomy and phyloge- X-chromosomes in male and female complements netic relationships of psyllids, there is still much respectively. -
The Genus Metaphycus Mercet (Hym.: Encyrtidae) of the Iranian Fauna with Description of a New Species
North-Western Journal of Zoology Vol. 6, No. 2, 2010, pp.255-261 P-ISSN: 1584-9074, E-ISSN: 1843-5629 Article No.: 061124 The genus Metaphycus Mercet (Hym.: Encyrtidae) of the Iranian fauna with description of a new species Hosseinali LOTFALIZADEH Department of Plant Protection, Agricultural Research Center of Tabriz, Azarbaijan-e Sharghi, Iran. E-mail: [email protected], [email protected] Abstract. Eleven species of Metaphycus Mercet (Hym.: Chalcidoidea, Encyrtidae) are listed for Ira- nian fauna. A new record is presented and a new species is described as M. davoodii Lotfalizadeh sp. nov. reared from Coccus hesperidum L. (Hem.: Coccidae). Illustrations and discussion of affinities of the new species with its close relatives are presented. Key words: Metaphycus davoodii sp. nov., Encyrtidae, new species, Coccidae, parasitoid, Iran. Introduction by Zeya & Hayat (1993). Species of the Nearctic region were studied by Noyes & Hanson The Encyrtidae (Hym.: Chalcidoidea) is one of (1996). Recently, a review of European species the largest families within the Chalcidoidea (Guerrieri & Noyes 2000) has contributed to with approximately 4000 nominal species the knowledge of this genus in the Palaearctic among 483 genera classified in two subfamilies region. Species of this genus are typically pri- (Noyes 2010). Fallahzadeh and Japoshvili mary endoparasitoids that live on hemipterous (2010) listed 93 species in 32 genera of encyr- families Asterolecaniidae, Coccidae, Cerococ- tids for Iranian fauna and recently Lotfalizadeh cidae, Diaspididae, Eriococcidae, Keriidae, (2010) increased this list to 102 species, corrcet- Kermesidae, Pseudococcidae and Psyllidae ing some misidentifications and adding some (Hemiptera) (Myartseva 1988, Noyes & Han- new records. The genus Metaphycus Mercet, son 1996, Guerrieri & Noyes 2000, Guerrieri with about 452 species worldwide, is a speciose 2006). -
Host Suitability for Crapemyrtle Bark Scale (Acanthococcus Lagerstroemiae) Differed Significantly Among Crapemyrtle Species
insects Article Host Suitability for Crapemyrtle Bark Scale (Acanthococcus lagerstroemiae) Differed Significantly among Crapemyrtle Species Bin Wu 1, Runshi Xie 1, Gary W. Knox 2 , Hongmin Qin 3,* and Mengmeng Gu 4,* 1 Department of Horticultural Sciences, Texas A&M University, College Station, TX 77843, USA; [email protected] (B.W.); [email protected] (R.X.) 2 Department of Environmental Horticulture, University of Florida/IFAS North Florida Research and Education Center, Quincy, FL 32351, USA; gwknox@ufl.edu 3 Department of Biology, Texas A&M University, College Station, TX 77843, USA 4 Department of Horticultural Sciences, Texas A&M AgriLife Extension Service, College Station, TX 77843, USA * Correspondence: [email protected] (H.Q.); [email protected] (M.G.); Tel.: +1-979-458-0512 (H.Q.); +1-979-845-8567 (M.G.) Simple Summary: An exotic insect, crapemyrtle bark scale (CMBS, Acanthococcus lagerstroemiae), has spread across 14 states of the U.S. The infestation of CMBS has negatively impacted the growth, flowering, and even fruiting of some Lythraceae plants to various extent, including cultivars of Lagerstroemia indica, L. fauriei, and Punica granatum. This raises concerns that CMBS would threaten other crapemyrtle species and native Lythraceae plants. Understanding the host range and the host suitability for CMBS would help evaluate the potential risks to landscapes and other ecosystems. Information on the host suitability provides beneficial information for breeding resistant cultivars. In this study, we conducted a host range test on six Lagerstroemia species (L. caudata, L. fauriei ‘Kiowa’, L. indica ‘Dynamite’, L. limii, L. speciosa, and L. subcostata) and a native Lythraceae plant in California (California loosestrife, Lythrum californicum) over 25 weeks. -
Hamuli the Newsletter of the International Society of Hymenopterists
Hamuli The Newsletter of the International Society of Hymenopterists volume 2, issue 1 20 January 2011 In this issue... Treasurer’s report (Brabant) 1 Figging in South Africa (van Noort) 1 Webmaster’s report (Seltmann) 2 Secretary’s report (Deans) 2 Ideas for ISH membership (Sharanowski) 7 New model for JHR (Woolley) 7 Permits and loans (Austin) 8 Recovery from 7th ICH (Melika) 10 Gall wasp jewelry (Talamas) 11 Gregarious Aleiodes (M. Shaw) 12 White whale wasps (Williams) 13 Dr Michael McLeish and MSc student Frances van der Merwe (University Photoeclector (Talamas) 14 of Stellenbosch) with Dr Simon van Noort (Iziko South African Museum), from left to right respectively, at Ithala Game Reserve in front of a South Where the wild things are (S. Shaw) 14 African near endemic fig species, Ficus burtt-davyi. Missing wasps and bees (Barthélémy) 16 Digitization in Finland (Sääksjärvi et al.) 17 Figging in KwaZulu-Natal Hidden rainbows (Hansson & Shetsova) 19 By: Simon van Noort, Iziko Museums of Cape Town Collecting bears (Schwarzfeld) 20 Five stings in a day (Starr) 21 A combined Iziko Museums of Cape Town and Univer- Sarawak Hymenoptera survey (Darling) 22 sity of Stellenbosch field trip was conducted in October Lessons from fieldwork (Mayo) 24 2010 to sample fig wasps for cuticular hydrocarbons. The Vapor coating for SEM (Dal Molin et al.) 27 focus of the sampling area centered on north-eastern South Tropical ichneumonids (Sääksjärvi) 28 Africa. Fig species have a tropical distribution and the HAO update and report (HAO team) 30 highest concentration and diversity of South African fig Slam traps in Belize (Broad) 32 species occurs in Kwazulu-Natal, hence the targeting of Scanning specimen drawers (Deans) 33 this region to maximize return on sampling effort. -
The Insect Database in Dokdo, Korea: an Updated Version in 2020
Biodiversity Data Journal 9: e62011 doi: 10.3897/BDJ.9.e62011 Data Paper The Insect database in Dokdo, Korea: An updated version in 2020 Jihun Ryu‡,§, Young-Kun Kim |, Sang Jae Suh|, Kwang Shik Choi‡,§,¶ ‡ School of Life Science, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, South Korea § Research Institute for Dok-do and Ulleung-do Island, Kyungpook National University, Daegu, South Korea | School of Applied Biosciences, Kyungpook National University, Daegu, South Korea ¶ Research Institute for Phylogenomics and Evolution, Kyungpook National University, Daegu, South Korea Corresponding author: Kwang Shik Choi ([email protected]) Academic editor: Paulo Borges Received: 14 Dec 2020 | Accepted: 20 Jan 2021 | Published: 26 Jan 2021 Citation: Ryu J, Kim Y-K, Suh SJ, Choi KS (2021) The Insect database in Dokdo, Korea: An updated version in 2020. Biodiversity Data Journal 9: e62011. https://doi.org/10.3897/BDJ.9.e62011 Abstract Background Dokdo, a group of islands near the East Coast of South Korea, comprises 89 small islands. These volcanic islands were created by an eruption that also led to the formation of the Ulleungdo Islands (located in the East Sea), which are approximately 87.525 km away from Dokdo. Dokdo is important for geopolitical reasons; however, because of certain barriers to investigation, such as weather and time constraints, knowledge of its insect fauna is limited compared to that of Ulleungdo. Until 2017, insect fauna on Dokdo included 10 orders, 74 families, 165 species and 23 undetermined species; subsequently, from 2018 to 2019, we discovered 23 previously unrecorded species and three undetermined species via an insect survey.