Morphological and Molecular Evidence for Multiple Taxa in Simulium parahiyangum (Diptera: Simuliidae), a Geographic Generalist Black Fly in Southeast Asia
Document Type
Article
Publication Date
1-1-2018
Abstract
Seven populations of Simulium parahiyangum Takaoka & Sigit (Diptera: Simuliidae), a geographically widespread nominal species of black fly in Southeast Asia, were morphologically and molecularly studied. Three morphoforms based on male and pupal morphological features, and two primary lineages based on the COI gene sequence analysis were recognized. Morphoform 1 (lineage 1) from Sarawak, Malaysia, is identified as S. parahiyangum sensu stricto and morphoform 2 (lineage 2) from Thailand and Vietnam, and morphoform 3 (lineage 1) from Peninsular Malaysia are each regarded as distinct species, although morphoform 3 is partially homosequential for the COI gene with morphoform 1. Morphoforms 2 and 3 are described as Simulium ngaoense sp. nov. and Simulium sazalyi sp. nov., respectively. Overall, S. parahiyangum is not a single geographic generalist but a composite of multiple species.
Keywords
black fly, COI gene, phylogenetics, Southeast Asia
Divisions
InstituteofBiologicalSciences
Funders
Research grant from University of Malaya (RP021A/16SUS),Thailand Research Fund,Office of the Higher Education Commission through the Research Grant for New Scholar (grant MRG5980-101),Diamond Research Grant from the Faculty of Medicine, Chiang Mai University, Thailand
Publication Title
Journal of Medical Entomology
Volume
55
Issue
6
Publisher
Oxford University Press