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Common Butterflies of Sri Lanka

Common Butterflies of Sri Lanka

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M<br />

LC<br />

Plain Tiger Danaus chrysippus<br />

<strong>Common</strong> Tiger Danaus genutia<br />

M<br />

LC<br />

Nymphalidae<br />

Male<br />

Female<br />

The sexes are similar in both colour and pattern. The apex <strong>of</strong> the forewing is black<br />

with varied white patches on the upper surface, where some <strong>of</strong> them form a subapical<br />

band. The outer margins <strong>of</strong> both wings are black with minute white patches.<br />

The distal end <strong>of</strong> the hind wing cell and its upper margin has three black patches on<br />

both sides. The basal parts <strong>of</strong> the forewing are reddish-orange on the underside, while<br />

the other areas are orange in colour. The black sub-apical band and outer margins<br />

have white patches. The male has a sex brand below the second vein <strong>of</strong> its hind wing<br />

which is marked in black on the upper surface, and in black with a white centre on<br />

the underside. Two rare forms <strong>of</strong> this species have been observed; one lacks the subapical<br />

band and the other has a large white area on its hind wing.<br />

Its habits are similar to those <strong>of</strong> the <strong>Common</strong> Tiger. However, it is not a migrant species.<br />

This species is common throughout the country and its numbers are very high in the<br />

northern dry zone. It prefers sunny scrubland habitats, and is never found in gloomy<br />

forests.<br />

The sexes are similar in colour and pattern. This dark orange-coloured butterfly has<br />

distinct black lines along the veins on both surfaces <strong>of</strong> both wings. The apex <strong>of</strong> the<br />

forewing is black in colour up to the cell, and extends along the upper and outer<br />

margin, on the upper surface. Elongated white patches form a sub-apical band and<br />

further small white spots are present towards the margins. The outer margin <strong>of</strong> the<br />

hind wing bares a black band with two rows <strong>of</strong> white spots. The colour pattern <strong>of</strong> its<br />

underside is more or less the same, being paler on the apex <strong>of</strong> the forewing and the<br />

hind wing. The male has an additional patch below the second vein on both sides <strong>of</strong><br />

the hind wing revealing the sex brand.<br />

The <strong>Common</strong> Tiger has a moderately fast but careless flight. It prefers to fly at scrub<br />

level and also descends to flowers <strong>of</strong> herbs. Males congregate at plants that provide<br />

toxins. This is a migratory species.<br />

This butterfly is common in the lowlands <strong>of</strong> <strong>Sri</strong> <strong>Lanka</strong>, both in the wet and dry zones,<br />

but are never as numerous as Plain Tigers. It is rarely seen in the hills.<br />

Male<br />

Male<br />

Nymphalidae<br />

LFPs: Apocynaceae plants including Calotropis gigantea (jrd), Cynanchum tunicatum<br />

(lka l=U,), Pergularia daemia<br />

LFPs: Apocynaceae plants including Cynanchum tunicatum (lka l=U,), Oxystelma<br />

esculentum and Pentatropis capensis<br />

62 <strong>Common</strong> <strong>Butterflies</strong> <strong>of</strong> <strong>Sri</strong> <strong>Lanka</strong><br />

<strong>Common</strong> <strong>Butterflies</strong> <strong>of</strong> <strong>Sri</strong> <strong>Lanka</strong> 63

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