Adelpha eulalia
Doubleday, 1848
Arizona Sister
Adelpha eulalia, commonly known as the Arizona Sister, is a in the Nymphalidae. It belongs to the serpa species group within the Adelpha. The species was previously treated as a of Adelpha bredowii (Bredow's Sister), but phylogenetic studies based on morphological, geographical, and genetic evidence have established it as a distinct species.
Pronunciation
How to pronounce Adelpha eulalia: //əˈdɛlfə juːˈleɪliə//
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Identification
Adelpha eulalia can be distinguished from its former Adelpha bredowii (Bredow's Sister) by a combination of morphological, geographical, and genetic differences that supported its elevation to full status. Within the serpa species group, identification to species level requires careful examination of wing patterns and geographic origin. The species is similar in general appearance to other 'sister' butterflies in the Adelpha, which typically exhibit dark brown to blackish wings with orange or white bands and spots.
Images
Distribution
The occurs from Guatemala and Mexico northward to the southwestern United States. In the U.S., it is found in southeastern California, Arizona, New Mexico, and southern Texas. Vagrant individuals have been recorded in Oklahoma, Kansas, Colorado, Utah, and Nevada.
Similar Taxa
- Adelpha bredowiiPreviously treated as with A. eulalia as ; separated based on morphological, geographical, and genetic evidence
- Adelpha californicaAnother member of the serpa group with which it shares general wing pattern and preferences in parts of its range
More Details
Taxonomic History
A. eulalia was long treated as a of A. bredowii. Recent phylogenetic studies using multiple lines of evidence (, geography, genetics) demonstrated that it warrants recognition as a separate .
Species Group Affiliation
The belongs to the serpa species group within Adelpha, a group characterized by shared wing pattern elements and ecological preferences.