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Topic Paper Chilterns Beechwoods
. O O o . 0 O . 0 . O Shoping growth in Docorum Appendices for Topic Paper for the Chilterns Beechwoods SAC A summary/overview of available evidence BOROUGH Dacorum Local Plan (2020-2038) Emerging Strategy for Growth COUNCIL November 2020 Appendices Natural England reports 5 Chilterns Beechwoods Special Area of Conservation 6 Appendix 1: Citation for Chilterns Beechwoods Special Area of Conservation (SAC) 7 Appendix 2: Chilterns Beechwoods SAC Features Matrix 9 Appendix 3: European Site Conservation Objectives for Chilterns Beechwoods Special Area of Conservation Site Code: UK0012724 11 Appendix 4: Site Improvement Plan for Chilterns Beechwoods SAC, 2015 13 Ashridge Commons and Woods SSSI 27 Appendix 5: Ashridge Commons and Woods SSSI citation 28 Appendix 6: Condition summary from Natural England’s website for Ashridge Commons and Woods SSSI 31 Appendix 7: Condition Assessment from Natural England’s website for Ashridge Commons and Woods SSSI 33 Appendix 8: Operations likely to damage the special interest features at Ashridge Commons and Woods, SSSI, Hertfordshire/Buckinghamshire 38 Appendix 9: Views About Management: A statement of English Nature’s views about the management of Ashridge Commons and Woods Site of Special Scientific Interest (SSSI), 2003 40 Tring Woodlands SSSI 44 Appendix 10: Tring Woodlands SSSI citation 45 Appendix 11: Condition summary from Natural England’s website for Tring Woodlands SSSI 48 Appendix 12: Condition Assessment from Natural England’s website for Tring Woodlands SSSI 51 Appendix 13: Operations likely to damage the special interest features at Tring Woodlands SSSI 53 Appendix 14: Views About Management: A statement of English Nature’s views about the management of Tring Woodlands Site of Special Scientific Interest (SSSI), 2003. -
ARTHROPOD COMMUNITIES and PASSERINE DIET: EFFECTS of SHRUB EXPANSION in WESTERN ALASKA by Molly Tankersley Mcdermott, B.A./B.S
Arthropod communities and passerine diet: effects of shrub expansion in Western Alaska Item Type Thesis Authors McDermott, Molly Tankersley Download date 26/09/2021 06:13:39 Link to Item http://hdl.handle.net/11122/7893 ARTHROPOD COMMUNITIES AND PASSERINE DIET: EFFECTS OF SHRUB EXPANSION IN WESTERN ALASKA By Molly Tankersley McDermott, B.A./B.S. A Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Science in Biological Sciences University of Alaska Fairbanks August 2017 APPROVED: Pat Doak, Committee Chair Greg Breed, Committee Member Colleen Handel, Committee Member Christa Mulder, Committee Member Kris Hundertmark, Chair Department o f Biology and Wildlife Paul Layer, Dean College o f Natural Science and Mathematics Michael Castellini, Dean of the Graduate School ABSTRACT Across the Arctic, taller woody shrubs, particularly willow (Salix spp.), birch (Betula spp.), and alder (Alnus spp.), have been expanding rapidly onto tundra. Changes in vegetation structure can alter the physical habitat structure, thermal environment, and food available to arthropods, which play an important role in the structure and functioning of Arctic ecosystems. Not only do they provide key ecosystem services such as pollination and nutrient cycling, they are an essential food source for migratory birds. In this study I examined the relationships between the abundance, diversity, and community composition of arthropods and the height and cover of several shrub species across a tundra-shrub gradient in northwestern Alaska. To characterize nestling diet of common passerines that occupy this gradient, I used next-generation sequencing of fecal matter. Willow cover was strongly and consistently associated with abundance and biomass of arthropods and significant shifts in arthropod community composition and diversity. -
On the Evolution of the Tymbalian Tymbal Organ: Comment On
Cicadina 18 (2019): 17-26 17 Response to “On the evolution of the tymbalian tymbal organ: Comment on “Planthopper bugs use a fast, cyclic elastic recoil mechanism for effective vibrational communication at small body size” by Davranoglou et al. 2019” Leonidas-Romanos Davranoglou1, Alice Cicirello, Beth Mortimer, Graham K. Taylor Zusammenfassung: Kommunikation über Vibrationssignale in der Gruppe der Spitzkopf- zikaden (Hemiptera: Fulgoromorpha) ist allgegenwärtig, doch war der zugrundeliegende Mechanismus bis zu einem kürzlich erschienenen Artikel von Davranoglou et al. (2019) un- bekannt. In diesem Beitrag werden die funktionelle Morphologie, die Biomechanik des Ver- haltens und die systematische Verbreitung eines weitverbreiteten Vibrationsmechanismus´ beschrieben, den die Autoren als Schnapporgan („snapping organ“) bezeichneten. Der Me- chanismus dieses Schnapporgans unterscheidet sich prinzipiell von den einzigen vergleich- baren Vibrationsorganen innerhalb der Hemipteren, nämlich den Trommelorganen (Tymbal) der Singzikaden (Cicadidae, Cicadomorpha). Kurz nach der Veröffentlichung argumentier- ten Hoch et al. (2019), dass es „unnötig, wenn nicht sogar irreführend“ wäre, diesen Mecha- nismus als „snapping organ“ zu bezeichnen und führten aus, dass dieses vielmehr als tym- balähnliches Trommelorgan mit Schnappmechanismus („tymbalian tymbal organ with snap- ping mechanism“) bezeichnet werden sollte. Diese Bezeichnung bezieht sich auf die „Tym- balia“-Hypothese von Wessel et al. (2014), der zufolge alle bekannten abdominalen Vibrati- onsorgane der Hemiptera Modifikationen eines abdominalen Vibrationsorgans darstellen, das im letzten gemeinsamen Vorfahren der Fulgoromorpha, Cicadomorpha und Heterop- terodea vor 300 Mio. Jahren vorhanden war. In unserem Beitrag zeigen wir, dass die Krite- rien, die Wessel et al (2014) verwendeten, um das tymbalähnliche Trommelorgan zu definie- ren, auf fehlerhaften segmentalen Zuordnungen der Schlüsselmuskulaturen beruhen. Die „Tymbalia“-Hypothese muss daher neu evaluiert werden. -
The Nestling Diet of Svalbard Snow Buntings Identified by DNA Metabarcoding
Faculty of Biosciences, Fisheries and Economics, Department of Arctic and Marine Biology The nestling diet of Svalbard snow buntings identified by DNA metabarcoding — Christian Stolz BIO-3950 Master thesis in Biology, Northern Populations and Ecosystems, May 2019 Faculty of Biosciences, Fisheries and Economics, Department of Arctic and Marine Biology The nestling diet of Svalbard snow buntings identified by DNA metabarcoding Christian Stolz, UiT The Arctic University of Norway, Tromsø, Norway and The University Centre in Svalbard (UNIS), Longyearbyen, Norway BIO-3950 Master Thesis in Biology, Northern Populations and Ecosystems, May 2018 Supervisors: Frode Fossøy, Norwegian Institute for Nature Research (NINA), Trondheim, Norway Øystein Varpe, The University Centre in Svalbard (UNIS), Longyearbyen, Norway Rolf Anker Ims, UiT The Arctic University of Norway, Tromsø, Norway i Abstract Tundra arthropods have considerable ecological importance as a food source for several bird species that are reproducing in the Arctic. The actual arthropod taxa comprising the chick diet are however rarely known, complicating assessments of ecological interactions. In this study, I identified the nestling diet of Svalbard snow bunting (Plectrophenax nivalis) for the first time. Faecal samples of snow bunting chicks were collected in Adventdalen, Svalbard in the breeding season 2018 and analysed via DNA metabarcoding. Simultaneously, the availability of prey arthropods was measured via pitfall trapping. The occurrence of 32 identified prey taxa in the nestling diet changed according to varying abundances and emergence patterns within the tun- dra arthropod community: Snow buntings provisioned their offspring mainly with the most abundant prey items which were in the early season different Chironomidae (Diptera) taxa and Scathophaga furcata (Diptera: Scathophagidae), followed by Spilogona dorsata (Diptera: Mus- cidae). -
Two New Leafhopper Genera of the Alebroides Genus Group (Hemiptera: Cicadellidae: Typhlocybinae) from China, with a Key to Genera of the Group
Entomological Science (2017) doi: 10.1111/ens.12260 ORIGINAL ARTICLE Two new leafhopper genera of the Alebroides genus group (Hemiptera: Cicadellidae: Typhlocybinae) from China, with a key to genera of the group Ye XU1,SihanLU1, Yuru WANG1, Christopher H. DIETRICH2 and Daozheng QIN1 1 Key Laboratory of Plant Protection Resources and Pest Management of the Ministry of Education, Entomological Museum, Northwest A&F University, Yangling, China and 2 Illinois Natural History Survey, Prairie Research Institute, University of Illinois, Champaign, Illinois, USA Abstract Two new microleafhopper genera in the Alebroides genus group, Nulliata Lu, Xu & Qin, gen. nov., based on the type species N. rubrostriata Lu, Xu & Qin, sp. nov.,andInflatopina Lu, Dietrich & Qin, gen. nov., based on the type species I. intonsa Lu, Dietrich & Qin, sp. nov., are described from southwest China. Five known species in the Alebroides sohii species group are transferred to Inflatopina as new combinations. Keys to genera of the Alebroides genus group and species of Inflatopina are given. Key words: Auchenorrhyncha, microleafhopper, morphology, taxonomy. INTRODUCTION the cosmopolitan genus Empoasca Walsh, 1862). In contrast, the Alebroides group appears more stable in The microleafhopper tribe Empoascini comprises more classification, comprising 156 species in 25 genera so than 1,000 species in 85 previously described genera far, widely distributed in the Oriental, Palaearctic, from throughout the world. It can be distinguished from Afrotropical and Australian Regions but absent from other tribes of Typhlocybinae as follows: ocelli usually the New World (Xu et al. 2016). well developed; forewing without appendix; hind wing In China, the Alebroides group includes 14 genera and submarginal vein extended between apices of veins 58 species known to date (see checklist). -
First Record of Nearctic Issid Planthopper Thionia Simplex (Hemiptera: Fulgoroidea: Issidae) from Europe
238 V.M. GNEZDILOV & F. POGGI. FIRST RECORD OF THIONIA SIMPLEX FROM EUROPE Figs 1–3. Thionia simplex (Germar, 1830), male, Italy. 1, dorsal view; 2, lateral view; 3, frontal view. Total length of specimen is 5.2 mm. ZOOSYSTEMATICA ROSSICA, 23(2): 238–241 25 DECEMBER 2014 First record of Nearctic issid planthopper Thionia simplex (Hemiptera: Fulgoroidea: Issidae) from Europe Первое указание неарктической иссиды Thionia simplex (Hemiptera: Fulgoroidea: Issidae) из Европы V.M. GNEZDILOV* & F. POGGI В.М. ГНЕЗДИЛОВ & Ф. ПОДЖИ V.M. Gnezdilov, Zoological Institute of the Russian Academy of Sciences, 1 Universitetskaya Emb., St Petersburg 199034, Russia. E-mails: [email protected], [email protected] F. Poggi, Via Madonnina 6, I-23873 Missaglia (LC), Italia. E-mail: [email protected] The Nearctic issid species Thionia simplex (Germar, 1830) is recorded for the first time from Europe. Other alien Auchenorrhyncha species in Europe are listed and discussed. Неарктическая иссида Thionia simplex (Germar, 1830) впервые указана из Европы. Пере- числены и обсуждены другие случаи завозов в Европу цикадовых. Key words: alien species, U.S.A., Europe, Italy, Auchenorrhyncha, Fulgoroidea, Issidae, Issini, planthopper, new record Ключевые слова: инвазивный вид, США, Европа, Италия, Auchenorrhyncha, Fulgoroi- dea, Issidae, Issini, фулгороидные цикадовые, новое указание INTRODUCTION description (including of the male genita- lia) given by Doering (1938). Italy has become the “gateway for New Thionia simplex (Germar, 1830) was de- World planthoppers in Europe” since the scribed from Kentucky in U.S.A. (Germar, last century as several species which are 1830). Currently this species is recorded adventive for Europe were first recorded from 19 states in eastern U.S.A. -
A New Dipteran Parasitoid of Rose Sawfly from Turkey
Kastamonu Uni., Orman Fakültesi Dergisi, 2018, 18 (3): 288-291 Research Article Kastamonu Univ., Journal of Forestry Faculty Doi:10.17475/kastorman.341693 A New Dipteran Parasitoid of Rose Sawfly from Turkey: Vibrissina turrita (Meigen, 1824) Yafes YILDIZ Bartın University, Faculty of Forestry, Bartın, 74100, TURKEY [email protected] Received Date: 04.10.2017 Accepted Date: 22.10.2018 Abstract Aim of study: The aim of this study was to determine the parasitoid species of, Arge ochropus (Gmelin, 1790), which is an important pest of culture and wild roses. Area of study: Arge ochropus larvae were collected from Rosa canina in Bartın province. Material and Methods: Larvae collecting damages on Rosa canina species, which are distributed in different localities and were brought to the laboratory. Observations were continued and photographed under a microscope. Main results: Arge ochropus (Gmelin, 1790) is a significant pest of cultivated and wild roses in Turkey. Leaf surface is consumed as a result of intense damage of larvae and this affects growth and blooming in the plant. It was observed that the larvae collected from the field were infected by a new parasitoid in the laboratory. This tachinid parasitoid was defined as Vibrissina turrita. Research highlights: Vibrissina turrita (Meigen, 1824) was detected in Turkey as a Tachinidae fauna and Arge ochropus parasitoid for the first time in this study. Keywords: Vibrissina turrita, new record, Tachinidae, parasitoid, Arge ochropus, Turkey Türkiye’ den Gül Yaprak Arısının Yeni Bir Parazitoiti: Vibrissina turrita (Meigen, 1824) Öz Çalışmanın amacı: Kültür ve yabani güllerin önemli zararlısı Arge ochropus (Gmelin, 1790) yaprak arısının, parazitoid türünün tespiti amaçlanmıştır. -
Fauna Europaea: Hymenoptera – Symphyta & Ichneumonoidea Van Achterberg, K.; Taeger, A.; Blank, S.M.; Zwakhals, K.; Viitasaari, M.; Yu, D.S.K.; De Jong, Y
UvA-DARE (Digital Academic Repository) Fauna Europaea: Hymenoptera – Symphyta & Ichneumonoidea van Achterberg, K.; Taeger, A.; Blank, S.M.; Zwakhals, K.; Viitasaari, M.; Yu, D.S.K.; de Jong, Y. DOI 10.3897/BDJ.5.e14650 Publication date 2017 Document Version Final published version Published in Biodiversity Data Journal License CC BY Link to publication Citation for published version (APA): van Achterberg, K., Taeger, A., Blank, S. M., Zwakhals, K., Viitasaari, M., Yu, D. S. K., & de Jong, Y. (2017). Fauna Europaea: Hymenoptera – Symphyta & Ichneumonoidea. Biodiversity Data Journal, 5, [e14650]. https://doi.org/10.3897/BDJ.5.e14650 General rights It is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulations If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: https://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. UvA-DARE is a service provided by the library of the University of Amsterdam (https://dare.uva.nl) Download date:27 Sep 2021 Biodiversity Data Journal 5: e14650 doi: 10.3897/BDJ.5.e14650 Data Paper Fauna Europaea: Hymenoptera – Symphyta & Ichneumonoidea Kees van Achterberg‡, Andreas Taeger§, Stephan M. -
© Download a Contribution to the Sawfsy Fauna of Northern Greece (Hyme
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Beiträge zur Entomologie = Contributions to Entomology Jahr/Year: 1993 Band/Volume: 43 Autor(en)/Author(s): Blank Stephan M. Artikel/Article: A contribution to the sawfly fauna of northern Greece (Hymenoptera, Symphyta). 431-439 ©www.senckenberg.de/; download www.contributions-to-entomology.org/ Beitr. Ent. Berlin ISSN 0005-805 43(1993)2 S. 431-439 18.06.1993 A contribution to the sawfSy fauna of northern Greece (Hymenoptera? Symphyta) With one figure St e p h a n M . B l a n k 1 Abstract This contribution to the Greek sawfly fauna reports on 41 species of Symphyta from Macedonia and Epirus. Nineteen of them are recorded from Greece probably for the first time: Aprosthema austriaca (KONOW, 1892), Strongylogaster xanthocera STEPHENS, 1835, Scolioneura spec., Athalia cornuhiae BENSON, 1931, A. paradoxa K o n o w , 1886,Monostegia abdominalis (F a b r ic t u s , 1798),Allanlus cingulatus (SCOPOU, 1763), Tenthredo brevicornis (KONOW, 1886),T. livida LINNAEUS, 1758, T. maculata semseyi MOCSÄRY, 1883, T. marginella marginella FABRICIUS, 1793, T. notha notha KLUG, 1817, T. obsoleta KLUG, 1817, T. amoena GRAVENHORST, 1807, Rhogogaster viridis (LINNAEUS, 1758), Macrophya rufipes orientalis MOCSÄRY, 1891, M. rufopicta E n s u n , 1910, Aglaostigma aucupariae aucupariae (K l u g , 1817), Romania kriechbaumeri (K o n o w , 1901). The Lectotype of Empria abdominalis var. rufmotis ENSLIN, 1914 (= Monostegia abdominalis FABRICIUS, 1793) is fixed. Zusammenfassung Der vorliegende Beitrag zur griechischen Blattwespenfauna berichtet über 41 Blattwespenarten aus Makedonien und Epirus, von d en en 19 wahrscheinlich erstmals in Griechenland nachgewiesen werden: Aprosthema austriaca (KONOW, 1892),Strongyloga ster xanthocera STEPHENS, 1835, Scolioneura spec., Athalia cornubiae BENSON, 1931, A. -
New Data on the Sawfly Fauna of Corsica with the Description of a New Species Pontania Cyrnea Sp.N
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Nachrichtenblatt der Bayerischen Entomologen Jahr/Year: 2005 Band/Volume: 054 Autor(en)/Author(s): Liston Andrew D., Späth Jochen Artikel/Article: New data on the sawfly fauna of Corsica with the description of a new species Pontania cyrnea sp.n. (Hymenoptera, Symphyta) 2-7 © Münchner Ent. Ges., download www.biologiezentrum.at NachrBl. bayer. Ent. 54 (1 /2), 2005 New data on the sawfly fauna of Corsica with the description of a new species Pontania cyrnea sp. n. (Hymenoptera, Symphyta) A. D. LISTON & J. SPÄTH Abstract Records of 38 taxa of Symphyta collected recently by the authors in Corsica are presented. 15 identified species are additions to the known Corsican fauna. Pontania cyrnea sp. n. is described and compared with the morphologically similar P. joergcnseni ENSLIN. The family Xyelidae is recorded for the first time on the island. A total of 71 symphytan species are now known from Corsica. Introduction CHEVIN (1999) published a list of 56 species of sawflies and other Symphyta (woodwasps, orus- sids) from Corsica. His paper is based mainly on material made available to him by specialists in other insect groups who have collected there. He also included data on specimens from Corsica in the Muséum national d'Histoire naturelle (Paris), and mentioned a few taxa already recorded in papers by other symphytologists. The island had previously been visited by a single sawfly specialist, who examined only the leaf-mining species (BUHR 1941). In spring 2004 the junior author stated his intent to collect Symphyta in Corsica. -
Sawflies (Hym.: Symphyta) of Hayk Mirzayans Insect Museum with Four
Journal of Entomological Society of Iran 2018, 37(4), 381404 ﻧﺎﻣﻪ اﻧﺠﻤﻦ ﺣﺸﺮهﺷﻨﺎﺳﯽ اﯾﺮان -404 381 ,(4)37 ,1396 Doi: 10.22117/jesi.2018.115354 Sawflies (Hym.: Symphyta) of Hayk Mirzayans Insect Museum with four new records for the fauna of Iran Mohammad Khayrandish1&* & Ebrahim Ebrahimi2 1- Department of Plant Protection, Faculty of Agriculture, Shahid Bahonar University, Kerman, Iran & 2- Insect Taxonomy Research Department, Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran 19395-1454, Iran. *Corresponding author, E-mail: [email protected] Abstract A total of 60 species of Symphyta were identified and listed from the Hayk Mirzayans Insect Museum, Iran, of which the species Abia candens Konow, 1887; Pristiphora appendiculata (Hartig, 1837); Macrophya chrysura (Klug, 1817) and Tenthredopsis nassata (Geoffroy, 1785) are newly recorded from Iran. Distribution data and host plants are here presented for 37 sawfly species. Key words: Symphyta, Tenthredinidae, Argidae, sawflies, Iran. زﻧﺒﻮرﻫﺎي ﺗﺨﻢرﯾﺰ ارهاي (Hym.: Symphyta) ﻣﻮﺟﻮد در ﻣﻮزه ﺣﺸﺮات ﻫﺎﯾﮏ ﻣﯿﺮزاﯾﺎﻧﺲ ﺑﺎ ﮔﺰارش ﭼﻬﺎر رﮐﻮرد ﺟﺪﯾﺪ ﺑﺮاي ﻓﻮن اﯾﺮان ﻣﺤﻤﺪ ﺧﯿﺮاﻧﺪﯾﺶ1و* و اﺑﺮاﻫﯿﻢ اﺑﺮاﻫﯿﻤﯽ2 1- ﮔﺮوه ﮔﯿﺎهﭘﺰﺷﮑﯽ، داﻧﺸﮑﺪه ﮐﺸﺎورزي، داﻧﺸﮕﺎه ﺷﻬﯿﺪ ﺑﺎﻫﻨﺮ، ﮐﺮﻣﺎن و 2- ﺑﺨﺶ ﺗﺤﻘﯿﻘﺎت ردهﺑﻨﺪي ﺣﺸﺮات، ﻣﺆﺳﺴﻪ ﺗﺤﻘﯿﻘﺎت ﮔﯿﺎهﭘﺰﺷﮑﯽ اﯾﺮان، ﺳﺎزﻣﺎن ﺗﺤﻘﯿﻘﺎت، ﺗﺮوﯾﺞ و آﻣﻮزش ﮐﺸﺎورزي، ﺗﻬﺮان. * ﻣﺴﺌﻮل ﻣﮑﺎﺗﺒﺎت، ﭘﺴﺖ اﻟﮑﺘﺮوﻧﯿﮑﯽ: [email protected] ﭼﮑﯿﺪه درﻣﺠﻤﻮع 60 ﮔﻮﻧﻪ از زﻧﺒﻮرﻫﺎي ﺗﺨﻢرﯾﺰ ارهاي از ﻣﻮزه ﺣﺸﺮات ﻫﺎﯾﮏ ﻣﯿﺮزاﯾﺎﻧﺲ، اﯾﺮان، ﺑﺮرﺳﯽ و ﺷﻨﺎﺳﺎﯾﯽ ﺷﺪﻧﺪ ﮐﻪ ﮔﻮﻧﻪﻫﺎي Macrophya chrysura ،Pristiphora appendiculata (Hartig, 1837) ،Abia candens Konow, 1887 (Klug, 1817) و (Tenthredopsis nassata (Geoffroy, 1785 ﺑﺮاي اوﻟﯿﻦ ﺑﺎر از اﯾﺮان ﮔﺰارش ﺷﺪهاﻧﺪ. اﻃﻼﻋﺎت ﻣﺮﺑﻮط ﺑﻪ ﭘﺮاﮐﻨﺶ و ﮔﯿﺎﻫﺎن ﻣﯿﺰﺑﺎن 37 ﮔﻮﻧﻪ از زﻧﺒﻮرﻫﺎي ﺗﺨﻢرﯾﺰ ارهاي اراﺋﻪ ﺷﺪه اﺳﺖ. -
Technical Series, No
' ' Technical Series, No. 20, Part II. U. S. DEPARTMENT OF AGRICULTURE, BXJRE^TJ OK' TClSrTOM:OIL.OG^Y. L, 0. HOWARD, Entomologist and Chief of Bureau. TECHNICAL PAPERS ON MISCELLANEOUS .FOREST INSECTS. II. THE GENOTYPES OF THE SAWFLIES AND WOODWASPS, OR THE SUPERFAMILY TENTHKEDINOIDEA. S. A. ROHWER, Agent and Expert. Issued M.\rch 4, 1911. WASHINGTON: GOVERNMENT PRINTING OFFICE. 1911. Technical Series, No. 20, Part II. U. S. DEPARTMENT OF AGRICULTURE. L. 0. HOWARD, Entomologist and Chief of Bureau. TECHNICAL PAPERS ON MISCELLANEOUS FOREST INSECTS. II. THE GENOTYPES OF THE SAWFLIES AND WOODWASPS, OR THE SUPERFAMILY TENTHREDINOIDEA. BY S. A. ROHWER, Agent and Expert. Issued Makch 4, 1911. WASHINGTON: GOVERNMENT PRINTING OFFICE. 1911. B UREA U OF ENTOMOLOGY. L. O. Howard, Entomologist and Chief of Bureau. C. L. Marlatt, Entomologist and Acting Chief in Absence of Chief. R. S. Clifton, Executive Assistant. W. F. Tastet, Chief Clerk. F. H. Chittenden, in charge of truck crop and stored product insect investigations. A. D. Hopkins, in charge offorest insect investigations. W. D. Hunter, in charge of southern field crop insect investigations. F. M. Webster, in charge of cereal and forage insect investigations. A. L. Quaintance, in charge of deciduous fruit insect investigations. E. F. Phillips, in charge of bee culture. D. M. Rogers, in charge of preventing spread of moths, field -work. RoLLA P. Currie, in charge of editorial work. Mabel Colcord, librarian. , Forest Insect Investigations. A. D. Hopkins, in charge. H. E. Burke, J. L. Webb, Josef Brunner, S. A. Rohwer, T. E. Snyder, W. D. Edmonston, W. B. Turner, agents and experts.