9th International Congress of Dipterology Abstracts Volume 25–30 November 2018 Windhoek Namibia Organising Committee: Ashley H. Kirk-Spriggs (Chair) Burgert Muller Mary Kirk-Spriggs Gillian Maggs-Kölling Kenneth Uiseb Seth Eiseb Michael Osae Sunday Ekesi Candice-Lee Lyons Edited by: Ashley H. Kirk-Spriggs Burgert Muller 9th International Congress of Dipterology 25–30 November 2018 Windhoek, Namibia Abstract Volume Edited by: Ashley H. Kirk-Spriggs & Burgert S. Muller Namibian Ministry of Environment and Tourism Organising Committee Ashley H. Kirk-Spriggs (Chair) Burgert Muller Mary Kirk-Spriggs Gillian Maggs-Kölling Kenneth Uiseb Seth Eiseb Michael Osae Sunday Ekesi Candice-Lee Lyons Published by the International Congresses of Dipterology, © 2018. Printed by John Meinert Printers, Windhoek, Namibia. ISBN: 978-1-86847-181-2 Suggested citation: Adams, Z.J. & Pont, A.C. 2018. In celebration of Roger Ward Crosskey (1930–2017) – a life well spent. In: Kirk-Spriggs, A.H. & Muller, B.S., eds, Abstracts volume. 9th International Congress of Dipterology, 25–30 November 2018, Windhoek, Namibia. International Congresses of Dipterology, Windhoek, p. 2. [Abstract]. Front cover image: Tray of micro-pinned flies from the Democratic Republic of Congo (photograph © K. Panne coucke). Cover design: Craig Barlow (previously National Museum, Bloemfontein). Disclaimer: Following recommendations of the various nomenclatorial codes, this volume is not issued for the purposes of the public and scientific record, or for the purposes of taxonomic nomenclature, and as such, is not published in the meaning of the various codes. Thus, any nomenclatural act contained herein (e.g., new combinations, new names, etc.), does not enter biological nomenclature or pre-empt publication in another work. ii 9th International Congress of Dipterology, Windhoek 2018, Abstract Volume. Preface Every four years, dipterists from around the globe meet up at the International Congresses of Dipterology to discuss scientific progress in the various disci- plines of dipterology, present research findings, liaise with colleagues and forge future research collaborations. The 9th International Congress of Dipterology (ICD9) is the first such Congress to be held on the African continent and the first in a developing country. The overall theme of the Congress was “Afrotropical dipterology”, but all themes and regions were represented. A total of 273 full delegates and students from 51 countries, attended the Congress, including 61 delegates from 13 African countries. This volume contains 321 abstracts of oral and poster presentations submitted to the Organising Committee of ICD9 for the Congress held in Windhoek, Na- mibia, in November 2018. This collection of abstracts serves as a snapshot of the range and quality of scientific activity in the international dipterological com- munity and this publication is a permanent record, summarising presentations at the Congress, serving an important purpose both for those who attended the meeting and those who did not. The table of contents is arranged according to the 23 symposia, arranged al- phabetically, to facilitate location of abstracts in specific topic areas. For the purposes of ICD9, poster presentations do not form part of symposia and are listed separately. Abstracts in the volume are arranged alphabetically by first author and the names of presenting authors (if more than one) are underlined. The footer for each abstract indicates to which symposium an oral presentation belongs or whether a plenary, keynote or poster presentation. Two indexes are included at the back of the volume, one comprising the names of all abstract authors, the other key words (as provided by the authors) and used in the titles. Abstracts were edited to a certain extent for consistency of style and formatting in collaboration with the authors and the various symposia Convenors, but the content of abstracts remains the sole responsibility of the authors. Spelling of words follows British rather than American orthography and all abstracts are edited to apply the passive voice. Presenting author names are underlined and an asterisk (*) indicates corresponding author. We take this opportunity to thank all ICD9 delegates and symposium Conve- nors, who assisted with arrangements and made the Congress possible. We also thank the various sponsors who gave financial support (as indicated on the back cover of this book), the Government of the Republic of Namibia and the people of Namibia for their friendly and helpful support. Ashley H. Kirk-Spriggs & Burgert S. Muller October 2018 9th International Congress of Dipterology, Windhoek 2018, Abstract Volume. iii Table of contents Preface .............................................................................................................iii Table of contents ...............................................................................................v Abstracts sorted by name of symposium and first author. “Plenary presentations” and “Poster presentations” are listed as separate headings. Advances in Afrotropical dipterology In celebration of Roger Ward Crosskey (1930–2017) – a life well spent. Adams, Z.J. & Pont, A.C. .......................................................................... 2 Systematics and taxonomy of Culicoides Latreille (Ceratopogonidae) in the Afrotropical Region – what are the challenges and what comes next? Bakhoum, M.T. et al. ....................................................................... 15 An assessment of Afrotropical craneflies (Tipulidae), with particular focus on the fauna of Cameroon. Boardman, P. ................................................. 31 Succulent plant niches and unexplored insect diversity – the gall midges (Cecidomyiidae) of Aizoaceae in South Africa. Colville, J.F. et al. ............ 55 What’s eating the grape? A review of African frugivorous Tephritidae research over the past 25 years. De Meyer, M. et al. ................................ 64 Biogeographical and allometric aspects of the Diopsidae of Madagascar. Feijen, H.R. et al. ...................................................................................... 77 Recent advances in the taxonomy and ecology of the hoverflies (Syrphidae) of the Afrotropical Region. Jordaens, K. & De Meyer, M. ....................... 126 No more Dodo doo doo – Diptera of the Mascarene Islands. Kirk-Spriggs, A.H. & Muller, B.S. .................................................................................. 133 Micropezidae of Madagascar – new collections and new connections. Marshall, S.A. .......................................................................................... 173 The “Atherix” syndrome – an overview of the systematics and taxonomy of Afrotropical Athericidae. Muller, B.S. & Kirk-Spriggs, A.H. .................... 198 Afrotropical Conopidae – 200 years of research on a beautiful group of Afrotropical flies.Stuke, J.-H. .................................................................. 267 Host associations and distribution of South African bat flies (Hippobosc- idae: Nycteribiinae). Szentiványi, T. et al. ............................................... 271 Taxonomy and feeding behaviour of Afrotropical snail-killing flies (Sciomyzidae). Vala, J.-C. et al. .............................................................. 289 Advances in Diptera phylogenomics A phylogenomic approach elucidates the early diverging acalyptrate line- ages of Schizophora. Bayless, K.M. et al. ................................................ 23 A phylogenomic perspective of the Oestroidea (Calyptratae) using ultra- conserved elements and historical museum specimens. Buenaventura, E. et al. ....................................................................................................... 38 9th International Congress of Dipterology, Windhoek 2018, Abstract Volume. v Big data, big challenges – resolving the phylogenetic relationships of the subfamily Syrphinae (Syrphidae) with target DNA enrichment. Burt, T.O. et al. ........................................................................................................... 41 Phylogenetic relationships of spider flies (Acroceridae) – discordance, uncertainty and the perils of phylogenomics. Gillung, J.P. ........................ 91 Phylogenomic analysis of Calyptratae – resolving a major radiation of Diptera. Kutty, S.N. et al. ........................................................................ 146 Deploying an army of nuclear genes to resolve the phylogeny of Australian soldier flies (Stratiomyidae) and the discovery of more than 150 new species. Lessard, B.D. et al. ................................................................... 150 A preliminary phylogeny of Asiloidea using anchored enrichment data (Brachycera). Li, X. et al. ......................................................................... 155 Molecular phylogeny of Allodia Winnertz sensu lato (Mycetophilidae) constructed using genome skimming. Magnussen, T. et al. ................... 169 Ultraconserved elements in a Diptera-wide phylogeny. Noble, K. et al. ...... 213 Is this the end of Syrphoidea? – Flower flies (Syrphidae) and big-headed flies (Pipunculidae) are not sister-groups. Pauli, T. et al. ........................ 225 Phylogenomic strategies to resolve major fly radiations – characters, complexity and the new data-rich paradigm. Wiegmann, B.M. ............... 305 Mecoptera, molecules and morphology – phylogenomic perspective on the origin of Diptera. Yeates, D.K. et al. .................................................