Northern Oak Hairstreak Satyrium favonius (W. H. Edwards, 1868) ontarioEndangered (MD)  -  S1S2 (Highly state rare)    Synonyms: Fixsenia favonius.
Kingdom Animalia   >   Phylum Arthropoda   >   Class Insecta   >   Order Lepidoptera   >   Family Lycaenidae   >   Genus Satyrium   

Status:

Northern Oak Hairstreak (Satyrium favonius ontario), the widespread northern form of this species, occurs rarely in Maryland, and is considered state-endangered, with a state ranking of S1/S2 (highly-state-rare/state-rare). This lovely butterfly is generally observed along edges of open oak forest, where its host plants are common, and flies in mid-June (Butterflies of Maryland: A Biological Summary and Checklist by Lynn Davidson & Richard Smith; Brock & Kaufman, 2003).

Relationships:

As its name suggests, the larvae feed on oaks (Quercus sp.) Known to utilize White Oak (Quercus alba), Black Oak (Quercus velutina), Northern Red Oak (Quercus rubra), Post Oak (Quercus stellata), and possibly Bear Oak (Quercus ilicifolia) (Allen 1997).

There are 20 records in the project database.

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An Oak Hairstreak in Lucas Co., Ohio (6/4/2010). Photo by Angie Cole. (MBP list)

Northern Oak Hairstreak in Maryland (6/7/2020). (c) cornelius toe, some rights reserved (CC BY-NC). Photo by cornelius_toe via iNaturalist. (MBP list)


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