Phaeostrymon Clench, 1961

Zhang, Jing, Cong, Qian, Shen, Jinhui, Opler, Paul A. & Grishin, Nick V., 2019, Changes to North American butterfly names, The Taxonomic Report of the International Lepidoptera Survey 8 (2), pp. 1-12 : 4

Phaeostrymon Clench, 1961 is a junior subjective synonym of Satyrium Scudder, 1876

Phaeostrymon Clench, 1961 (type and the only species Thecla alcestis W. H. Edwards, 1871) was previously considered a valid genus, but it originates within Satyrium Scudder, 1876 (type species Lycaena fuliginosa W. H. Edwards, 1861), thus rendering Satyrium paraphyletic ( Fig. 4 ). Because Satyrium is a tight (but diverse) group of close relatives prominently separated from other genera ( Fig. 4 ), Phaeostrymon is a close sister to the clade with the type species of Satyrium, and Phaeostrymon is not prominently distinct from this clade, it is best to treat Phaeostrymon as a junior subjective synonym of Satyrium, new status.

Figures

Fig. 4. Satyrium and Phaeostrymon.