New name for the southern New England Spring Azure

[pavu...@aol.com]

Folks, after 45 years of Celastrina research, we have finally resolved the status of the "Spring Azure" in southern New England.  It is an introgressed hybrid species combining features of Northern Azure (C. lucia) and Spring Azure (C. ladon).  I know NABA will refuse to recognize this species, but I am listing download information here for anyone with a serious interest in latest discoveries among our butterflies.  It will be added to Butterfliesandmoths.org shortly, followed by BAMONA.  The hybrid species is presented as Celastrina isadora.

Vol. 13(8), May 13, 2026

Recognition of the Spring Flight of Celastrina (Tutt) (Lycaenidae: Polyommatinae) in Southern New England as an Introgressed Hybrid Species.  7 pp.

Harry Pavulaan

ZooBank link: https://zoobank.org:pub:2D57D548-194F-4C71-9817-117336BA3B35

DOI: https://doi.org/10.5281/zenodo.20170159  Zenodo records: https://zenodo.org/records/20170159

Digital repository link: https://archive.org/details/t-report-13-8-a-new-species-of-celastrina-from-southern-new-england

Digital Commons link: https://digitalcommons.unl.edu/taxrpt/108/