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Open Access A new species and synonymy of the Neotropical Eucelatoria Townsend and redescription of Myiodoriops Townsend

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The New World tropics represents the most diverse region for tachinid parasitoids (Diptera: Tachinidae), but it also contains the most narrowly defined, and possibly the most confusing, tachinid genera of any biogeographic region. This over-splitting of genera and taxonomic confusion has limited progress toward our understanding the family in this region and much work is needed to revise, redefine, and make sense of the profusion of finely split taxa. In a recent analysis of the Neotropical genus Erythromelana Townsend, two species previously assigned to this genus, Euptilodegeeria obumbrata (Wulp) and Myiodoriops marginalis Townsend were reinstated as monotypic genera. In the present study, we demonstrate that Euptilodegeeria obumbrata (Wulp), previously assigned to three different genera, represents in fact a species of the large New World genus Eucelatoria Townsend, in which females possess a sharp piercer for oviposition. We also show that the species Eucelatoria carinata (Townsend) belongs to the same species group as Eucelatoria obumbrata, which we here define and characterize as the E. obumbrata species group. Additionally, we describe Eucelatoria flava sp. n. as a new species within the E. obumbrata species group. Finally, we redescribe the genus Myiodoriops Townsend and the single species M. marginalis Townsend.
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Document Type: Research Article

Publication date: January 1, 2014

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