A note on the two Sphingidae "Complex" groups in the United States

This post is meant to store information about the two Sphingidae "Complex" groups in the United States.

  1. Sphinx gordius and Sphinx poecila = Complex Sphinx gordius

You cannot reliably differentiate the adults or larvae of Sphinx gordius and Sphinx poecila morphologically. As of right now, barcoding the COI gene is the best method.

We also are unclear of the range. There are barcoded gordius specimens in Canada and also poecila from as far south as New Jersey.

gordius barcoded range: https://v3.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=59729

poecila barcoded range: https://v3.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=18472

Images of larval variability: https://bugguide.net/node/view/2330268
Images of adult variability/verified by barcoding individuals: https://bugguide.net/node/view/2330266


  1. Protambulyx strigilis and Protambulyx carteri = Complex Protambulyx strigilis

With the inclusion of Protambulyx carteri in the latest North American Lepidoptera checklist, the identification of this pair becomes impossible with photographic evidence only. Both P. strigilis and P. carteri are found in Florida (see links below), and can only be differentiated by barcode or genitalic dissection.

strigilis barcoded range:

carteri barcoded range: https://v3.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxon=Protambulyx+carteri&searchMenu=taxonomy&query=Protambulyx+carteri

Paper on the entire genus of Protambulyx which details genitalia of Protambulyx strigilis and P. carteri: https://www.zobodat.at/pdf/Neue-Entomologische-Nachrichten_70_0153-0187.pdf

Publicado el febrero 27, 2024 04:09 MAÑANA por teamontagna teamontagna


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