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Conochironomus (Diptera: Chironomidae) in Asia: New and redescribed species and vouchering issues

Cranston, Peter

Description

The presence of the Afro-Australian genus Conochironomus Freeman, 1961 (Diptera: Chironomidae) in Asia has been recognised only informally. An unpublished thesis included Conochironomus from Singapore, and the genus has been keyed from Malaysia without named species. Here, the Sumatran Conochironomus tobaterdecimus (Kikuchi & Sasa, 1980) comb. n. is recorded from Singapore and Thailand. The species is transferred from Sumatendipes Kikuchi & Sasa, 1980, rendering the latter a junior synonym...[Show more]

dc.contributor.authorCranston, Peter
dc.date.accessioned2020-12-15T00:13:58Z
dc.identifier.issn1175-5326
dc.identifier.urihttp://hdl.handle.net/1885/217283
dc.description.abstractThe presence of the Afro-Australian genus Conochironomus Freeman, 1961 (Diptera: Chironomidae) in Asia has been recognised only informally. An unpublished thesis included Conochironomus from Singapore, and the genus has been keyed from Malaysia without named species. Here, the Sumatran Conochironomus tobaterdecimus (Kikuchi & Sasa, 1980) comb. n. is recorded from Singapore and Thailand. The species is transferred from Sumatendipes Kikuchi & Sasa, 1980, rendering the latter a junior synonym (syn. n.) of Conochironomus Freeman. Conochironomus nuengthai sp. n. and Conochironomus sawngthai sp. n. are described as new to science, based on adult males from Chiang Mai, Thailand. All species conform to existing generic diagnoses for all life stages, with features from male and female genitalia, pupal cephalic tubercles and posterolateral ‘spurs’ of tergite VIII providing evidence for species distinction. Some larvae are linked to C. tobaterdecimus through molecular barcoding. Variation in other larvae, which clearly belong to Conochironomus and are common throughout Thailand, means that they cannot be segregated to species. Larval habitats include pools in river beds, urban storage reservoirs, drains with moderately high nutrient loadings, and peat swamps. Endochironomus effusus Dutta, 1994 from north-eastern India may be a congener but may differ in adult morphology, thereby precluding formal new combination until discrepancies can be reconciled. Many problems with vouchering taxonomic and molecular material are identified that need to be rectified in the future.
dc.description.sponsorshipStudies in Asia were supported by an endowment to the University of California at Davis (2000–2010) by the late Evert Schlinger which also funded Marianne Dominguez to provide line drawings of some immature stages. The US National Science Foundation (NSF,DEB-0531513) funded surveys in Thailand through Robert Sites (University of Missouri). Akekawat Vitheepradit (now of Department of Entomology, Kasetsart University, Bangkok) organised field work, permits, logistical support, collected much material and advised on names derived from Thai. Financial support was provided by the joint PUB-NUS project entitled “Chironomid Mass Emergences in Singapore: Monitoring Protocols and Identification of Triggers” (Grant number R-154-000-526-490) managed by Esther Clewes and Rudolf Meier (NUS). Various permits to study midges allowed collection of Singapore and Thai material. Bilgenur Baloğlu and Sujatha Narayanan Kutty (NUS) are thanked for provision of molecular data and specimen registration with GenBank, and YuChen Ang (NUS) for habitus images
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherMagnolia Press
dc.rights© 2016 Magnolia Press
dc.sourceZootaxa
dc.subjectChironominae
dc.subjectnew species
dc.subjectimmature stages
dc.subjectsouth-east Asia
dc.titleConochironomus (Diptera: Chironomidae) in Asia: New and redescribed species and vouchering issues
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume4109
dc.date.issued2016
local.identifier.absfor060301 - Animal Systematics and Taxonomy
local.identifier.ariespublicationU3488905xPUB16952
local.publisher.urlhttp://www.mapress.com/zootaxa/index.html
local.type.statusPublished Version
local.contributor.affiliationCranston, Peter, College of Science, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.issue3
local.bibliographicCitation.startpage315
local.bibliographicCitation.lastpage331
local.identifier.doi10.11646/zootaxa.4109.3.3
local.identifier.absseo970106 - Expanding Knowledge in the Biological Sciences
dc.date.updated2020-07-26T08:17:47Z
local.identifier.scopusID2-s2.0-84966680846
local.identifier.thomsonID000375573500003
CollectionsANU Research Publications

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