Giant Redeye

Gangara thyrsis

"Gangara thyrsis", commonly known as the Giant Redeye, is a butterfly belonging to the family Hesperiidae. It breeds on a number of palm species.
Giant Redeye (Gangara thyrsis)  Gangara thyrsis,Geotagged,Giant Redeye,India,Winter

Appearance

The Male and female dark are chocolate-brown. With a Forewing consisting of bright yellow semi-transparent quadrate spots disposed triangularly, the first is large and occupying half the cell, the second also large, obliquely beneath and partly beyond, the third small and obliquely above the second; above the last are three smaller spots obliquely before the apex, the two upper being geminated; in some specimens beneath the subapical spots is a small dot, and on the posterior margin another, both similar to the rest; cilia at posterior angle brownish-white; hindwing with the cilia at the anterior angle brownish-white. Underside, forewing irrorated with grey scales near the apex, posterior margin pale brownish-white, spots yellow as above; hindwing irrorated with grey scales in a series of bands across the wing.

The male of this species presents, on the upperside of each anterior wing, three lines of modified scales, namely, one along the posterior side of the median vein between the origins of its first and second branches, another on each side of the first median veinlet from the origin of this up to the second discal spot, and a third, also double, along an equal portion of the submedian vein, and a thick clothing of setae paler than the groundcolour at the base of the interno-median area, and a similar clothing of paler setae on the middle three-fourths of the sutural area; and, on the underside, a conspicuous and equally long furry patch of pale fulvous coarse setae divided by the submedian vein.

The wing expanse ranges from 2.5 to 3.25 inches.
Caterpillar of Giant Red Eye  Gangara thyrsis,Giant Red Eye,Giant Redeye,caterpillar

Behavior

The Larva is greyish-white with a few ochreous dorsal spots and marks. From the body,a loose shaggy filamentous clothing consisting of pure wax is excreted, but which is easily rubbed off when handled, leaving the larva quite naked.
Giant Redeye - Gangara thyrsis  Gangara thyrsis,Giant Redeye,Palawan,Philippines,Skipper

Food

The larvae feed on palms and canes including "Cocos nucifera", "Calamus pseudotenuis", "Calamus rotang", "Calamus thwaitesii", "Phoenix loureirii", "Licuala chinensis" and "Phoenix humilis". Has also been recorded on "Zingiber officinale".

References:

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Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassInsecta
OrderLepidoptera
FamilyHesperiidae
GenusGangara
SpeciesG. thyrsis
Photographed in
India
Philippines