Zootaxa 3697 (1): 001–088 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Monograph ZOOTAXA Copyright © 2013 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3697.1.1 http://zoobank.org/urn:lsid:zoobank.org:pub:492264BB-E919-447D-9D67-C226DE21A0CE ZOOTAXA 3697 Taxonomic exploration of Neotropical Microdontinae (Diptera: Syrphidae) mimicking stingless bees MENNO REEMER Naturalis Biodiversity Center / EIS, P.O. Box 9517, 2300 RA Leiden, the Netherlands, [email protected] Magnolia Press Auckland, New Zealand Accepted by C. Kehlmaier: 18 Jun. 2013; published: 9 Aug. 2013 Licensed under a Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0 MENNO REEMER Taxonomic exploration of Neotropical Microdontinae (Diptera: Syrphidae) mimicking stingless bees (Zootaxa 3697) 88 pp.; 30 cm. 9 Aug. 2013 ISBN 978-1-77557-238-1 (paperback) ISBN 978-1-77557-239-8 (Online edition) FIRST PUBLISHED IN 2013 BY Magnolia Press P.O. Box 41-383 Auckland 1346 New Zealand e-mail: [email protected] http://www.mapress.com/zootaxa/ © 2013 Magnolia Press ISSN 1175-5326 (Print edition) ISSN 1175-5334 (Online edition) 2 · Zootaxa 3697 (1) © 2013 Magnolia Press REEMER TABLE OF CONTENTS ABSTRACT . 4 INTRODUCTION . 4 MATERIAL AND METHODS . 5 Acronyms for collections . 5 Terminology . 6 Lectotype designations . 6 KEYS . 6 Key to genera of Neotropical Microdontinae mimicking stingless bees . 7 Key to species of Carreramyia . 8 Key to species of Ceratophya . 8 Key to species of Hypselosyrphus . 8 Key to species of Mermerizon . 9 Key to species of Stipomorpha . 9 Key to species of Ubristes . 10 Species accounts: descriptions, redescriptions and notes . 10 Carreramyia flava (Sack, 1941) . 10 Carreramyia megacephalus (Shannon, 1925) . 12 Carreramyia megacera spec. nov. 12 Carreramyia tigrina spec. nov. 14 Ceratophya argentinensis spec. nov. 15 Ceratophya carinifacies (Curran, 1934) . 17 Ceratophya longicornis Wiedemann, 1824 (excluded from Ceratophya) . 19 Ceratophya notata Wiedemann, 1824 . 19 Ceratophya panamensis (Curran, 1930) . 20 Ceratophya scolopus (Shannon, 1927) . 22 Hypselosyrphus amazonicus Reemer, 2013 . 23 Hypselosyrphus anax (Thompson, 1976) . 25 Hypselosyrphus corbiculipes Papavero, 1962 . 26 Hypselosyrphus helvus spec. nov. 28 Hypselosyrphus marshalli spec. nov. 28 Hypselosyrphus maurus spec. nov. 29 Hypselosyrphus pingo spec. nov. 32 Hypselosyrphus plaumanni (Curran, 1940) . 34 Hypselosyrphus pseudorhoga spec. nov. 35 Hypselosyrphus trigonus Hull, 1937 . 35 Hypselosyrphus ulopodus (Hull, 1944) . 37 Hypselosyrphus vexillipennis spec. nov. 38 Mermerizon inbio Reemer, 2013 . 40 Mermerizon mellosus spec. nov. 41 Mermerizon mesmerizus spec. nov. 41 Stipomorpha apicula (Curran, 1930) . 43 Stipomorpha crematogastri spec. nov. 45 Stipomorpha dichromata spec. nov. 47 Stipomorpha elcopala spec. nov. 47 Stipomorpha fallax spec. nov. 48 Stipomorpha fraudator (Shannon, 1927) . ..