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Systematics, phylogeny and biogeography
RESEARCH ARTICLE

The evolutionary history of Lipsothrix Loew (Diptera : Tipuloidea) inferred through systematic revision and historical biogeographical analysis

Matthew Petersen
+ Author Affiliations
- Author Affiliations

Roanoke College, Biology Department, 221 College Lane, Salem, VA 24153, USA. Email: mpetersen13@gmail.com

Invertebrate Systematics 29(3) 239-286 https://doi.org/10.1071/IS14044
Submitted: 14 August 2014  Accepted: 15 February 2015   Published: 30 June 2015

Abstract

The evolutionary history of the crane fly genus Lipsothrix Lowe, 1873 was examined through a systematic revision of specimens maintained in natural history collections, parsimony analysis using TNT based on immature and adult morphology, and dispersal–vicariance analyses in RASP (Bayesian and S-DIVA). The genus Lipsothrix was found to contain 29 valid species, one subspecies (L. nobilis iranica) and three species maintained but in need of further evaluation (Lipsothrix burmica, L. heitfeldi, L. yakushimae). One species complex (L. shasta complex) was further resolved using ordination and cluster analyses. One new species is described, L. nullusarma, sp. nov., and three species are synonymised (L. fulva, L. mirifica, L. yamamotoana omogoensis). Phylogenetic analysis recovered a strongly supported and monophyletic Lipsothrix. The historical biogeographical analyses of Lipsothrix inferred an ancestral area in the Western Palearctic region that likely dates to the Eocene. One, or several, dispersal events occurred from the Western Palearctic before major diversification events occurred in the Oriental and Eastern Palearctic + Nearctic regions. Two major paleogeographical developments occurring in the Oriental and Eastern Palearctic + Nearctic regions are largely responsible for Lipsothrix diversification, the collision of the Indian plate with Asia and the rise of the trans-Beringian land bridges during the Tertiary and Quaternary.


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