ID Guide - Phyllobius Weevils

Total Page：16

File Type：pdf, Size：1020Kb

Help & Information NatureSpot Resources Groups & Links Events Help to Record User League My Profile Login Register Mentoring Home Latest Images Species Galleries Wild Places Submit Records My Records NatureChat Home ID Guide - Phyllobius weevils Phyllobius is a genus of broad-nosed weevils that are commonly found on low herbage and in trees during spring and summer. Most are covered in metallic green scales that give them a very attractive appearance. There are 9 species and most look similar but they can be separated by carefully comparing the range of features shown in the table below, either under a binocular microscope or Search with a x20 hand-lens. Phyllobius weevils can be distinguished from the similar genus Polydrusus by looking where the antennae emerge from the rostrum. Total count of species: 5286 In Phyllobius the antennae emerge from the top whilst in Polydrusus they are positioned at the side. When looking directly down on Species Galleries the beetle it is usually clear to see. Birds Mammals toothed front femora < scales femora colour tibiae < elytral slope hairy Amphibians Phyllobius argentatus yes round pale fine Reptiles Fish Phyllobius maculicornus yes elongate dark fine Butterflies Moths Phyllobius glaucus yes pointed pale no Caterpillars Phyllobius pyri yes elongate dark ridged no Dragonflies and Damselflies Beetles (including Ladybirds) Phyllobius oblongus yes none pale yes Bugs Phyllobius pomaceus yes oval dark no Bees, Wasps, Ants Sawflies Phyllobius viridicollis no few dark no Hoverflies Craneflies Phyllobius roboretanus no round dark steep no Flies, Gnats and Midges Phyllobius virideaeris no round dark shallow no Barklice & Booklice Grasshoppers & Crickets Earwigs Mayflies Caddisflies Lacewings & Scorpionflies Stoneflies Silverfish Springtails & Bristletails Thrips Fleas Spiders, Harvestmen, Mites & Ticks Centipedes & Millipedes Woodlice, Crustaceans Slugs & Snails Worms Wildflowers Trees, Shrubs & Climbers Grasses, Rushes & Sedges Ferns & Horsetails Mosses & Liverworts Galls Fungi Lichens Algae, Bacteria, Virus Parishes Barwell Go Hosted by Clook Internet.

Copy Link

Recommended publications

Effects of Habitat Fragmentation and Disturbance on Biodiversity and Ecosystem Functions
Effects of habitat fragmentation and disturbance on biodiversity and ecosystem functions Inauguraldissertation der Philosophisch-naturwissenschaftlichen Fakultät der Universität Bern vorgelegt von Christof Schüepp von Eschlikon TG Leiter der Arbeit: Prof. Dr. M. H. Entling Institut für Ökologie und Evolution | downloaded: 13.3.2017 Von der Philosophisch-naturwissenschaftlichen Fakultät angenommen. Bern, 14. Mai 2013 Der Dekan: Prof. Dr. S. Decurtins Originaldokument gespeichert auf dem Webserver der Universitätsbibliothek Bern Dieses Werk ist unter einem https://doi.org/10.7892/boris.54819 Creative Commons Namensnennung-Keine kommerzielle Nutzung-Keine Bearbeitung 2.5 Schweiz Lizenzvertrag lizenziert. Um die Lizenz anzusehen, gehen Sie bitte zu http://creativecommons.org/licenses/by-nc-nd/2.5/ch/ oder schicken Sie einen Brief an Creative Commons, 171 Second Street, Suite 300, San Francisco, California 94105, USA. source: Effects of habitat fragmentation and disturbance on biodiversity and ecosystem functions Creative Commons Licence Urheberrechtlicher Hinweis Dieses Dokument steht unter einer Lizenz der Creative Commons Namensnennung- Keine kommerzielle Nutzung-Keine Bearbeitung 2.5 Schweiz. http://creativecommons.org/licenses/by-nc-nd/2.5/ch/ Sie dürfen: dieses Werk vervielfältigen, verbreiten und öffentlich zugänglich machen Zu den folgenden Bedingungen: Namensnennung. Sie müssen den Namen des Autors/Rechteinhabers in der von ihm festgelegten Weise nennen (wodurch aber nicht der Eindruck entstehen darf, Sie oder die Nutzung des Werkes durch Sie würden entlohnt). Keine kommerzielle Nutzung. Dieses Werk darf nicht für kommerzielle Zwecke verwendet werden. Keine Bearbeitung. Dieses Werk darf nicht bearbeitet oder in anderer Weise verändert werden. Im Falle einer Verbreitung müssen Sie anderen die Lizenzbedingungen, unter welche dieses Werk fällt, mitteilen. Jede der vorgenannten Bedingungen kann aufgehoben werden, sofern Sie die Einwilligung des Rechteinhabers dazu erhalten.
[Show full text]
Coleoptera: Curculionidae) , Nonindigenous Inhabitants of Northern Hardwood Forests
Host Breadth and OvipositionaI Behavior of Adult Polydrmsus sericeus and Phyllobius oblongus (Coleoptera: Curculionidae) , Nonindigenous Inhabitants of Northern Hardwood Forests Environ. Entomol. 34(1): 148-157 (2005) ABSTRACT Polydm serice2Ls (Schaller) and Phyllobius oblongus (L.) are nonindigenous root- feeding weevils in northern hardwood forests of Wisconsin and Michigan. Detailed studies of adult host range, tree species preferences, and effects of food source on fecundity and longevity have not been conducted in North America P. sericeus and P. oblongus adults fed on leaves of all 11 deciduous tree species offered in no-choice assays, but amount of consumption varied among species. P. sericeus consumed more yellow birch (Betula alleghuniensis Britton), basswood (Tilia amaicanu L.), and ironwood [Ostrya virginianu (Miller) K. Koch] than maple (Acer spp.). Conversely, P. oblongus consumed more ironwood than poplar (Pgulw spp.) and yellow birch, with maple being interme- diate. Females ate 2.5 times as much as males. Mean frass production by P. saiceus was strongly correlated with foliage consumption among host tree species. In feeding choice assays, P. serim preferred yellow birch over ironwood, basswood, and aspen (Populustremuloides Michaux) .P. serim produced 29.93 + 1.43 eggsld when feeding on yellow birch compared with 2.04 + 0.36 eggsld on sugar maple (Am sacchrum Marshall). P. oblongus produced 4.32 2 1.45 eggsid when feeding on sugar maple compared with just 0.2 2 0.1 eggsid on yellow birch. Overall, total egg production for P. sericeus and P. obbngm averaged 830.1 rt 154.8 and 23.8 2 11.8 eggs, respectively, when feeding on their optimal host plants.
[Show full text]
Spineless Spineless Rachael Kemp and Jonathan E
Spineless Status and trends of the world’s invertebrates Edited by Ben Collen, Monika Böhm, Rachael Kemp and Jonathan E. M. Baillie Spineless Spineless Status and trends of the world’s invertebrates of the world’s Status and trends Spineless Status and trends of the world’s invertebrates Edited by Ben Collen, Monika Böhm, Rachael Kemp and Jonathan E. M. Baillie Disclaimer The designation of the geographic entities in this report, and the presentation of the material, do not imply the expressions of any opinion on the part of ZSL, IUCN or Wildscreen concerning the legal status of any country, territory, area, or its authorities, or concerning the delimitation of its frontiers or boundaries. Citation Collen B, Böhm M, Kemp R & Baillie JEM (2012) Spineless: status and trends of the world’s invertebrates. Zoological Society of London, United Kingdom ISBN 978-0-900881-68-8 Spineless: status and trends of the world’s invertebrates (paperback) 978-0-900881-70-1 Spineless: status and trends of the world’s invertebrates (online version) Editors Ben Collen, Monika Böhm, Rachael Kemp and Jonathan E. M. Baillie Zoological Society of London Founded in 1826, the Zoological Society of London (ZSL) is an international scientiﬁ c, conservation and educational charity: our key role is the conservation of animals and their habitats. www.zsl.org International Union for Conservation of Nature International Union for Conservation of Nature (IUCN) helps the world ﬁ nd pragmatic solutions to our most pressing environment and development challenges. www.iucn.org Wildscreen Wildscreen is a UK-based charity, whose mission is to use the power of wildlife imagery to inspire the global community to discover, value and protect the natural world.
[Show full text]
Description of the Mature Larvae of Eight Phyllobius Germar, 1824
WEEVIL News 1. November 2020 No. 89 Description of the mature larvae of eight Phyllobius Germar, 1824 species with notes about life cycles, host plant use and vertical distribution (Curculionidae: Entiminae: Phyllobiini) by Rafał Gosik1 & Peter Sprick2 with 67 photos and 88 drawings Manuscript received: 11. August 2020 Accepted: 25. September 2020 Internet (open access, PDF): 01. November 2020 1Department of Zoology and Nature Protection, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland, [email protected] 2Curculio-Institut e.V., Weckenstraße 15, 30451 Hannover, Germany, psprickcol@t–online.de Both authors are members of the Curculio Institute. Abstract. The mature larvae of eight Phyllobius species are described using advanced optical methods. The larvae of P. pomaceus Gyllenhal, 1834, P. pyri (Linnaeus, 1758), P. virideaeris (Laicharting, 1781), and P viridicollis (Fabricius, 1792) are re-described, and the mature larvae of P. arborator (Herbst, 1797), P. argentatus (Linnaeus, 1758), P. maculicornis Germar, 1824, and P. roboretanus Gredler, 1882 are described for the first time. In P. viridearis only an unillustrated description was available. A key including other species of the genus Phyllobius with sufficient description is given. We used our data and from the literature as well to review and update two special features of Phyllobius biology: the general life cycle and aspects of host plant use and vertical distribution of selected Phyllobius species. Keywords. Phyllobius, Central Europe, weevil biology, illustration, key, bionomics, larvae biology. Introduction In this contribution about premature stages of Central European Entiminae we deal for the first time with larvae of the genus Phyllobius Germar, 1824 from the tribe Phyllobiini.
[Show full text]
Die Rüsselkäfer (Coleoptera, Curculionoidea) Der Schweiz – Checkliste Mit Verbreitungsangaben Nach Biogeografischen Regionen
MITTEILUNGEN DER SCHWEIZERISCHEN ENTOMOLOGISCHEN GESELLSCHAFT BULLETIN DE LA SOCIÉTÉ ENTOMOLOGIQUE SUISSE 83: 41–118, 2010 Die Rüsselkäfer (Coleoptera, Curculionoidea) der Schweiz – Checkliste mit Verbreitungsangaben nach biogeografischen Regionen CHRISTOPH GERMANN Natur-Museum Luzern, Kasernenplatz 6, 6003 Luzern und Naturhistorisches Museum der Burger ge - meinde Bern, Bernastrasse 15, 3006 Bern; Email: [email protected] The weevils of Switzerland – Checklist (Coleoptera, Curculionoidea), with distribution data by bio - geo graphic regions. – A checklist of the Swiss weevils (Curculionoidea) including distributional pat- terns based on 6 bio-geographical regions is presented. Altogether, the 1060 species and subspecies out of the 10 families are composed of 21 Anthribidae, 129 Apionidae, 3 Attelabidae, 847 Cur cu lio - ni dae, 7 Dryophthoridae, 9 Erirhinidae, 13 Nanophyidae, 3 Nemonychidae, 3 Raymondionymidae, and 25 Rhynchitidae. Further, 13 synanthropic, 42 introduced species as well as 127 species, solely known based on old records, are given. For all species their synonymous names used in Swiss litera- ture are provided. 151 species classified as doubtful for the Swiss fauna are listed separately. Keywords: Curculionoidea, Checklist, Switzerland, faunistics, distribution EINLEITUNG Rüsselkäfer im weiteren Sinn (Curculionoidea) stellen mit über 62.000 bisher beschriebenen Arten und gut weiteren 150.000 zu erwartenden Arten (Oberprieler et al. 2007) die artenreichste Käferfamilie weltweit dar. Die ungeheure Vielfalt an Arten, Farben und Formen oder verschiedenartigsten Lebensweisen und damit ein - her gehenden Anpassungen fasziniert immer wieder aufs Neue. Eine auffällige Gemein samkeit aller Rüsselkäfer ist der verlängerte Kopf, welcher als «Rostrum» (Rüssel) bezeichnet wird. Rüsselkäfer sind als Phyto phage stets auf ihre Wirts- pflanzen angewiesen und folgen diesen bei uns von Unter wasser-Biotopen im pla- naren Bereich (u.a.
[Show full text]
Laboratory Performance of Two Polyphagous Invasive Weevils on the Predominant Woody Plant Species of a Northern Hardwood Community
PLANTÐINSECT INTERACTIONS Laboratory Performance of Two Polyphagous Invasive Weevils on the Predominant Woody Plant Species of a Northern Hardwood Community 1,2 3 1 DAVID R. COYLE, WILLIAM J. MATTSON, JR., AND KENNETH F. RAFFA Environ. Entomol. 39(4): 1242Ð1248 (2010); DOI: 10.1603/EN09301 ABSTRACT A complex of invasive weevils that consume roots as larvae and foliage as adults have become established in northern hardwood forests in North America. We evaluated adults of the two most prominent species, Phyllobius oblongus and Polydrusus sericeus, for longevity, foliage consump- tion, and egg production on several putative hosts commonly found in this ecosystem. Adult pairs were monitored in no-choice laboratory assays for the duration of their lifespans on basswood, Tilia americana, ironwood, Ostrya virginiana, sugar maple, Acer saccharum, raspberry, Rubus spp., or leatherwood, Dirca palustris. Overall, P. sericeus lived more than twice as long as P. oblongus and lived longer on all hosts. P. sericeus consumed more total leaf area than P. oblongus on basswood, ironwood, and raspberry, but P. oblongus had a higher leaf consumption rate on sugar maple. Basswood was a very good host for P. sericeus. Leatherwood was not a suitable host for either weevil species. The higher longevity and fecundity of P. sericeus than P. oblongus did not agree with that expected from population data, in that the latter species is substantially more abundant. This likely reßects P. oblongus Õ superior performance on sugar maple, the dominant ßora in the study area. These data provide a basis for estimating the broader impacts of adult weevil feeding. KEY WORDS Curculionidae, exotic species, Phyllobius oblongus, Polydrusus sericeus, root herbi- vores Invasive species pose signiÞcant threats to the func- northern hardwood forests (Coyle et al.
[Show full text]
Systematic Review of the Frog Family Hylidae, with Special Reference to Hylinae: Phylogenetic Analysis and Taxonomic Revision
SYSTEMATIC REVIEW OF THE FROG FAMILY HYLIDAE, WITH SPECIAL REFERENCE TO HYLINAE: PHYLOGENETIC ANALYSIS AND TAXONOMIC REVISION JULIAÂ N FAIVOVICH Division of Vertebrate Zoology (Herpetology), American Museum of Natural History Department of Ecology, Evolution, and Environmental Biology (E3B) Columbia University, New York, NY ([email protected]) CEÂ LIO F.B. HADDAD Departamento de Zoologia, Instituto de BiocieÃncias, Unversidade Estadual Paulista, C.P. 199 13506-900 Rio Claro, SaÄo Paulo, Brazil ([email protected]) PAULO C.A. GARCIA Universidade de Mogi das Cruzes, AÂ rea de CieÃncias da SauÂde Curso de Biologia, Rua CaÃndido Xavier de Almeida e Souza 200 08780-911 Mogi das Cruzes, SaÄo Paulo, Brazil and Museu de Zoologia, Universidade de SaÄo Paulo, SaÄo Paulo, Brazil ([email protected]) DARREL R. FROST Division of Vertebrate Zoology (Herpetology), American Museum of Natural History ([email protected]) JONATHAN A. CAMPBELL Department of Biology, The University of Texas at Arlington Arlington, Texas 76019 ([email protected]) WARD C. WHEELER Division of Invertebrate Zoology, American Museum of Natural History ([email protected]) BULLETIN OF THE AMERICAN MUSEUM OF NATURAL HISTORY CENTRAL PARK WEST AT 79TH STREET, NEW YORK, NY 10024 Number 294, 240 pp., 16 ®gures, 2 tables, 5 appendices Issued June 24, 2005 Copyright q American Museum of Natural History 2005 ISSN 0003-0090 CONTENTS Abstract ....................................................................... 6 Resumo .......................................................................
[Show full text]
A New Species of the Weevil Genus Phyllobius Germar, 1824 (Coleoptera: Curculionidae: Entiminae) from the Pleistocene of Northeastern Siberia
Invertebrate Zoology, 2019, 16(2): 154–164 © INVERTEBRATE ZOOLOGY, 2019 A new species of the weevil genus Phyllobius Germar, 1824 (Coleoptera: Curculionidae: Entiminae) from the Pleistocene of northeastern Siberia S.A. Kuzmina1*, B.A. Korotyaev2 1 Laboratory of Arthropods, Borissiak Paleontological Institute RAS, Profsoyuznaya St. 123, Moscow, 117868 Russia. 2 Zoological Institute RAS, Universitetskaya nab. 1, St. Petersburg, 199034 Russia. E-mail: [email protected], [email protected] * corresponding author ABSTRACT: Weevils of the genus Phyllobius Germar, 1824 (Coleoptera, Curculionidae: Entiminae) are frequent in the Quaternary deposits of northeastern Siberia. A detailed study of the well-preserved Pleistocene fossils (including scales of the vestiture) from the Bolshoy Khomus-Yuryakh River in the Yana-Indigirka lowland (Sakha Republic – Yakutia) results in the recognition of a number of rare weevils including a new species of the genus Phyllobius Germar, 1824 — Ph. (Angarophyllobius) sheri sp.n. which is described in this paper. The new species is closely related to the recent Ph. kolymensis Korotyaev et Egorov, 1977 currently known from only a few localities in the area of the middle section of the Kolyma River, which had a wider distribution range in the Pleistocene. Phyllobius sheri sp.n. is probably extinct. How to cite this article: Kuzmina S.A., Korotyaev B.A. 2019. A new species of the weevil genus Phyllobius Germar, 1824 (Coleoptera: Curculionidae: Entiminae) from the Plei- stocene of northeastern Siberia // Invert. Zool. Vol.16. No.2. P.154–164. doi: 10.15298/ invertzool.16.2.04 KEY WORDS: Curculionidae, Phyllobius, Angarophyllobius, new species, Pleistocene, Siberia. Новый вид долгоносиков рода Phyllobius Germar, 1824 (Coleoptera: Curculionidae: Entiminae) из плейстоцена северо-восточной Сибири С.А.
[Show full text]
On the Identity of Some Weevil Species Described by Johann Christian Fabricius (1745–1808) in the Museum of Zoology of Cope
A peer-reviewed open-access journal ZooKeys 451: 61–91On the (2014) identity of some weevil species described by Johann Christian Fabricius... 61 doi: 10.3897/zookeys.451.8462 RESEARCH ARTICLE http://zookeys.pensoft.net Launched to accelerate biodiversity research On the identity of some weevil species described by Johann Christian Fabricius (1745–1808) in the Museum of Zoology of Copenhagen (Coleoptera, Cucujoidea, Curculionoidea, Tenebrionoidea) Miguel A. Alonso-Zarazaga1 1 Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (CSIC), José Gutiérrez Abascal, 2, E-28006 Madrid, Spain Corresponding author: Miguel A. Alonso-Zarazaga ([email protected]) Academic editor: P. Bouchard | Received 21 August 2014 | Accepted 25 September 2014 | Published 3 November 2014 http://zoobank.org/546295D0-332F-499C-89CC-00C29E21FB9D Citation: Alonso-Zarazaga MA (2014) On the identity of some weevil species described by Johann Christian Fabricius (1745–1808) in the Museum of Zoology of Copenhagen (Coleoptera, Cucujoidea, Curculionoidea, Tenebrionoidea). ZooKeys 451: 61–91. doi: 10.3897/zookeys.451.8462 Abstract The types of thirty-two nominal weevil species described by Johann Christian Fabricius are reviewed and lecto- and paralectotypes are designated for twenty-two of them. A neotype is designated for Curculio sticticus Fabricius, 1777. Protapion varipes (Germar, 1817) is declared a nomen protectum over Curculio flavipes Fabricius, 1775. Based on a study of syntypes, Rhinomacer curculioides Fabricius, 1781 is con- firmed as a member of Mycterus (Mycteridae), Bruchus undatus Fabricius, 1787 is tentatively transferred to Erotylidae, Curculio fulvirostris Fabricius, 1787 and Anthribus roboris Fabricius, 1798 are confirmed as members of Salpingus (Salpingidae), and Brachycerus cristatus Fabricius, 1798 is transferred to Tenebrioni- dae.
[Show full text]
Report on Beetles (Coleoptera) and a Woodwasp Recorded from the Dartington Hall Estate, 2018 by Dr Martin Luff
Report on beetles (Coleoptera) and a woodwasp recorded from the Dartington Hall Estate, 2018 by Dr Martin Luff 1. Introduction and Methods The majority of beetle recording in 2018 was again concentrated on Berryman’s Marsh. Three bottle traps were used throughout the season from April to October, suspended above several of the dead wood habitat piles in the marsh. Another trap was also hung over a large pile of logs and woody brash in Mary Bartlett’s garden at 1, Martins. In the autumn, a similar trap was put on one of the large heaps of mowings left at the margin of Berryman’s Marsh after it was cut. The dry summer exposed a large area of mud around the main pond on Queen’s Marsh; this was colonised by a range of specialist beetle species that were sampled by searching and sieving on June 28th. Water beetles were also trapped in the first pond on Berryman’s Marsh in October using baited bottle traps. On June 26th, I accompanied Mike Newby and Vicky Churchill to Redlake Meadow and Whitely Field, for a first look at sites outside the core estate. 2. Results It was another very satisfactory season. The 245 beetle species recorded (28 more than in 2017) was the highest annual total since I started recording here. Of these, 67 (27.3%) were additions to the Dartington list: one is Nationally Rare (NR), formerly classified as Red Data Book (RDB) and eleven are Nationally Scarce (NS), formerly called Nationally Notable. Some interesting results from each area are summarised below.
[Show full text]
Metabarcoding Malaise Traps and Soil Edna Reveals Seasonal and Local Arthropod Diversity Shifts Ameli Kirse1*, Sarah J
www.nature.com/scientificreports OPEN Metabarcoding Malaise traps and soil eDNA reveals seasonal and local arthropod diversity shifts Ameli Kirse1*, Sarah J. Bourlat1, Kathrin Langen1 & Vera G. Fonseca1,2* Forest habitats host enormous diversity, but little is known about the seasonal turnover of arthropod species between the above- and below ground forest layers. In this study, we used metabarcoding approaches to uncover arthropod diversity in diferent forest types and seasons. Our study shows that metabarcoding soil eDNA and Malaise trap bulk samples can provide valuable insights into the phenology and life cycles of arthropods. We found major diferences in arthropod species diversity between soil samples and Malaise traps, with only 11.8% species overlap. Higher diversity levels were found in Malaise traps in summer whereas soil samples showed a diversity peak in winter, highlighting the seasonal habitat preferences and life strategies of arthropods. We conclude that collecting time series of bulk arthropod samples and eDNA in the same locations provides a more complete picture of local arthropod diversity and turnover rates and may provide valuable information on climate induced phenological shifts for long-term monitoring. Forests are known to be one of the most diverse habitats on earth, providing a vast range of ecological niches, resulting in outstanding arthropod diversity 1. Forests can be roughly divided into two habitats: the ground and the above ground layer, with both closely linked to each other by mutual relationships of the associated abiotic and biotic environment2. Some studies have shown how biotic interactions in soil can regulate the structure and functioning of aboveground communities.
[Show full text]
Coleoptera: Curculionidae) Complex in Northern Hardwood Forests in the Great Lakes Region
Composition and Seasonal Phenology of a Nonindigenous Root-Feeding Weevil (Coleoptera: Curculionidae) Complex in Northern Hardwood Forests in the Great Lakes Region Environ. Entomol. 34(2) : 298-307 (2005) ABSTRACT Phyllobius oblongus (L.), Polydrusus sericeus (Schaller), and Sciaphilus asperatus (Bonsdorff)comprise a complex of nonindigenous root-feeding weevils in northern hardwood forests of the Great Lakes region. Little is known about their detailed biology, seasonality,relative abundance, and distribution patterns. We studied 10 sites over a 2-yr period. Two sites were in northeastern Wisconsin, and eight were in the neighboring southern upper peninsula of Michigan. Larval abun- dance was estimated by soil sampling, and adult abundance was estimated by sweep netting, emer- gence trapping, and beating samples. Sweep netting collected the most weevils overall (71.0%), whereas beating and emergence traps collected 22.1 and 6.9%, respectively. P. sericeus were the predominant larvae, representing 34.3% of total Curculionidae, whereas P. oblongus were the pre- dominant adults, representing 66.4% of Curculionidae. Few S. asperatus and Trachyphloeus aristatus (Gyllenhal) larvae and adults were collected, with the latter being a new record for Wisconsin. Two additional species, Barypeithes pellucidus (Boheman) and an undetermined Polydrusus sp., were collected only as larvae. Six species of curculionids were collected overall, with at least five being confirmed as nonindigenous species. P. oblongus and P. sericeus adults were the most abundant. These did not coincide temporally. Over 63% of P. obhgus and P. sericeus were collected during single 4-wk intervals in mid-June and mid-July, respectively. Conversely, S. asperatus adults overlapped with both other species, occurring sparingly from 4 June through 28 August.
[Show full text]