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Butterflies of Mexico, USA & Canada
Delaware Skipper
Anatrytone logan  EDWARDS, 1863
Family - HESPERIIDAE
subfamily - HESPERIINAE
Tribe - HESPERIINI
Anatrytone logan male, Massachusetts, USA  Frank Model
Introduction
In the Americas there are 2365 known species of Hesperiidae. These are split into 5 subfamilies i.e. Pyrrhopyginae, Heteropterinae, Megathyminae, Pyrginae and Hesperiinae. The Hesperiines of which there are about 1040 species, are known as Grass Skippers because their larvae feed on grasses, bamboos and other monocotyledons.
The genus Anatrytone comprises of 8 species, variously distributed from the USA to Argentina and Paraguay. Visual diagnostics of Anatrytone include a golden yellow underside, unmarked apart from a series of tiny black marginal dots; and a sharply angled hindwing costa. The uppersides of both sexes of all species have a golden-yellow ground colour, heavily marked with dark brown. In most species there is a suffused broad dark brown margin to both wings, and the forewing discal cell and costa are also dark brown.
Anatrytone logan is distributed across the central and eastern states of the USA.
Habitats
This species is found in subtropical and temperate areas, in meadows, woodland glades, riverbanks and other areas where the foodplants grow tall and lush.
Lifecycle
The eggs are laid singly on the blades of grasses including Andropogon, Erianthus and Panicum. the bluish-white larva lives within a shelter constructed by rolling a grass blade and sealing it with silk. It moves to another shelter after each moult. Pupation takes place in the final leaf shelter.
Adult behaviour
Males perch on grass blades where they await and intercept passing females. Both sexes nectar at a wide variety of plants, favouring pink-flowered Cirsium, Carduus and Thymus.
 

 

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