Tag Archives: Argynnis egestina Quoy & Gaimard

Vagrans egestina (Quoy & Gaimard)

Mariana Wandering Butterfly (Vagrans egestina 

The Mariana Wandering Butterfly was restricted to the islands of Guam and Rota in the southern part of the Mariana Islands chain.

The butterfly inhabited the forests on the lime cliffs wherever Luluhut (Maytenus thompsonii (Merr.) Fosberg), the food plant of its caterpillars was found. [1]

The local name of this butterfly is Ababbang (in Chamorro), bzw. Libwueibogh (in Carolinian).  

The species was last seen on Guam in 1979 and is considered as being extinct at least there, the last record of the species on the neighboring island of Rota took place in 1995, when only some male specimens were found but no female ones nor any eggs or caterpillars.

The Mariana Wandering Butterfly is now most likely globally extinct. 



[1] Ilse Schreiner; Donald Nafus: Survey of rare butterflies in the Mariana Islands. Preliminary report to USFWS. 1-10. 1995  


Depiction from: ‘M. Louis de Freycinet: Voyage autour du monde: fait par ordre du Roi, sur les corvettes de S. M. l’Uranie et la Physicienne, pendant les années 1817, 1818, 1819 et 1820. Paris: Chez Pillet aìné 1824-1844’ 

(not in copyright)


edited: 20.09.2020