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Butterflies of Mexico, USA & Canada
Large Roadside-Skipper
Amblyscirtes exoteria  HERRICH-SCHÄFFER, 1869
Family - HESPERIIDAE
subfamily - HESPERIINAE
Tribe -
Amblyscirtes exoteria, Sycamore Canyon, Arizona, USA © Frank Model
Introduction
The genus Amblyscirtes comprises of 28 species, distributed variously from the USA to Guatemala.
The uppersides of all species are dull earthy brown. In most species the fringes are chequered and the wings have a pattern of whitish spots similar to those of tolteca. However in a few species e.g. phylace and anubis the spots are vestigial; and in aesculapius they are enlarged and confluent. The undersides are generally similar in pattern to the dorsal, but the markings - especially those on the hindwings - are more pronounced.
Amblyscirtes exoteria is found in Arizona and Mexico.
Habitats
This species is found in open dry woodland and rough grassy places.
Lifecycle
The larva is translucent yellowish-green, with a darker green stripe running the length of the back. Its head is dark brown with 2 broad white vertical bands. It rests during daylight within a shelter or tube made by folding and silking a grass blade. The larval foodplant is Muhlenbergia ( Poaceae ).
Adult behaviour
Males imbibe mineralised moisture from damp ground, then visit rocks and boulders on which they expel the water through the anus. Minerals from the rocks are dissolved by the water which is then re-imbibed. This cycle of events is repeated continuously to enable the butterfly to extract enough minerals to provide sustenance. The chemicals are passed to females during copulation. Both sexes also visit flowers for nectar - favouring Lamiaceae and Asteraceae.
 

 

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