A cryptic new species of tiger swallowtail (Lepidoptera, Papilionidae) from eastern North America.

IF 1.3 3区 生物学 Q2 ZOOLOGY ZooKeys Pub Date : 2025-02-14 eCollection Date: 2025-01-01 DOI:10.3897/zookeys.1228.142202
Charles J DeRoller, Xi Wang, Julian R Dupuis, B Christian Schmidt
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引用次数: 0

Abstract

In the eastern Great Lakes region of North America, two tiger swallowtail species have previously been recognized, Papilioglaucus Linnaeus, 1758 and Papiliocanadensis Rothschild & Jordan, 1906. A third entity, the Midsummer Tiger Swallowtail, has been treated as a P.glaucus×canadensis hybrid, and exhibits a mosaic of both intermediate and unique morphological and biological traits. Here we demonstrate that rather than being a localized, historically recent hybrid phenomenon, the Midsummer Tiger Swallowtail maintains its morphological and physiological distinctness over a large geographic region in the absence of one or both putative parental species, and was first documented in the literature nearly 150 years ago. Papiliosolstitius sp. nov. is physiologically unique in delaying post-diapause development, which results in allochronic isolation between the spring flights of P.glaucus and P.canadensis, and the late summer flight of P.glaucus. Similarly, the geographic range of Papiliosolstitius spans the region between the northern terminus of P.glaucus and southern limits of P.canadensis, remaining distinct in areas of sympatry. Defining the taxonomic identity of this unique evolutionary lineage provides an important baseline for further inquiry into what has served as an exemplary species group in evolutionary study.

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ZooKeys
ZooKeys 生物-动物学
CiteScore
2.70
自引率
15.40%
发文量
400
审稿时长
3 months
期刊介绍: ZooKeys is a peer-reviewed, open-access, online and print, rapidly produced journal launched to support free exchange of ideas and information in systematic zoology, phylogeny and biogeography. All papers can be freely copied, downloaded, printed and distributed at no charge. Authors and readers are thus encouraged to post the pdf files of published papers on homepages or elsewhere to expedite distribution. There is no charge for color.
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