Neotropical Chvalaea Papp & Földvári (Diptera: Hybotidae: Ocydromiinae): new records, an illustrated key to species and description of three new species 

Abstract

Three new species of Chvalaea Papp & Földvári are described and illustrated: Chvalaea annularis sp. nov., C. ecuadoriensis sp. nov., and Chvalaea sinclairi sp. nov. In addition, an illustrated key, distribution map, new records, and updated diagnoses of all Neotropical species are presented.

The first documented record of Chvalaea Papp & Földvári, 2002 (Diptera, Hybotidae, Ocydromiinae) from the Australasian Region: a new species and its possible relationship to other members of the genus

“…Within the genus, a group of Neotropical species (C. annularis Barros & Ale-Rocha, 2019, C. boliviana Ale-Rocha, 2006, C. catarinensis Ale-Rocha, 2006and C. pulchra Ale-Rocha, 2006) may form a monophyletic clade, defined by the presence of short, blunt, black spine-like ventral setae on the fore and mid tarsomeres 3-4, as well as the veins M 1 and M 4 not reaching the wing margin or evanescent (Barros et al 2019). In Chvalaea australis sp.…”

“…Shamshev et al (2017) proposed Chvalaea sopianae Papp & Földvári, 2002 as a synonym of Chvalaea rugosiventris (Strobl, 1910), and increased the occurrence of C. rugosiventris to Eastern Siberia and the Russian Far East. Barros et al (2019) described three additional species from the Neotropical Region: C. annularis Barros & Ale-Rocha, 2019, C. ecuadoriensis Barros & Ale-Rocha, 2019 and C. sinclairi Barros & Ale-Rocha, 2019, besides an illustrated key, distributional map and updated diagnoses of all the Neotropical species. The latest species described in the genus was C. yolkamini Jaume-Schinkel, Soares & Barros, 2020 from Mexico, that represents the New World northernmost record of the genus.…”

“…Currently, Chvalaea comprises 10 valid species distributed in Palaearctic (Austria, Croatia, Hungary, Finland and Russia), Oriental (China) and Neotropical (Brazil, Bolivia, Costa Rica, Ecuador, Guatemala, Mexico, Peru, and Venezuela) regions (Sinclair & Cumming 2000;Kahanpää 2013;Shamshev et al 2017;Barros et al 2019;Jaume-Schinkel et al 2020).…”

“…In this paper, we describe a new species of Chvalaea, the first documented record of the genus from Australasian Region, previously cited in Barros et al (2019) as an "undescribed species for the Australasian Region". In addition, we discuss the geographic distribution, morphology and the possible relationship to other species of the genus.…”