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Perizomini (Lepidoptera: Geometridae: Larentiinae) are polyphyletic

In: Insect Systematics & Evolution
Authors:
Erki Õunap Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia
Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 5, 51014 Tartu, Estonia

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Toomas Tammaru Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia

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Andro Truuverk Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia
Natural History Museum, University of Tartu, Vanemuise 46, 51014 Tartu, EstoniaVersion of Record, published online 13 April 2019; published in print 19 May 2020

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Recent advances in molecular systematics have led to an emerging understanding of the phylogenetic history of the family Geometridae. These studies have basically confirmed the traditional subdivision of the subfamily Larentiinae into tribes but unsolved problems remain. Here we test the monophyly of the tribe Perizomini, and evaluate the division of this tribe into genera using Bayesian and maximum likelihood analyses of one mitochondrial and eight nuclear gene fragments. We show that the Eurasian members of Perizoma Hübner, 1825, Mesotype Hübner, 1825 and Gagitodes Warren, 1893 together form a monophyetic tribe Perizomini. However, Martania Mironov, 2000 is not closely related to these genera, but is considered to belong to Melanthiini according to the results of the phylogenetic analyses. Morphological evidence supporting this rearrangement is discussed. The Nearctic Larentia basaliata Walker, 1862 was shown to belong in the genus Martania as M. basaliata (Walker, 1862) comb. nov. and being specifically distinct from the morphologically similar Palaearctic M. taeniata. Three other studied ‘Perizoma’ species from the New World were similarly placed far from Perizomini in the phylogenetic tree, and were not related to each other. We conclude that both the tribe Perizomini and the genus Perizoma are polyphyletic which indicates that the group needs a global revision. It remains an open question whether Perizomini have a worldwide distribution as previously assumed, or is this tribe confined to the Palaearctic region.

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