Yellow Orange Tip , Ixias pyrene is a small butterfly

Butterfly

A butterfly is a mainly day-flying insect of the order Lepidoptera, which includes the butterflies and moths. Like other holometabolous insects, the butterfly's life cycle consists of four parts: egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured...

 of the Family Pieridae, that is, the Yellows and Whites, which is found in India.

Description

See glossary

Glossary of Lepidopteran terms

This glossary describes the terms used in the formal descriptions of insect species, jargon used mostly by professionals or entomologist....

for terms used

Dry-season brood. Male upperside: deep sulphur-yellow. Fore wing: base and basal half of costa thickly irrorated with black scales; apical half of the wing black, with an enclosed, large, irregularly triangular, orange-coloured patch, the apex of which is more or less broadly rounded and blunt; the orange colour extends into the apex of the cell bat is interrupted there by a black discocellular spot that spreads diffusely inwards and joins the black oblique bar which forms the base of the orange patch ; veins that traverse this latter, black. Hind wing: uniform with a little black scaling at extreme base; termen with a dusky-black somewhat narrow border (sometimes entirely absent) which decreases in width posteriorly.

Underside: a darker yellow, sparsely irrorated with fusco-ferruginous short strigae and minute spots. Fore wing: base and posterior area broadly, with a whitish pale virescent tint; the strigae and minute spots most numerous towards the apex and along the termen; interspaces 4, 5, 6 and 8 with a curved sub-apical series of small, rounded, dull ferruginous spots and a similar spot on the discocellulars. Hind wing also with a ferruginous spot on the discocellulars, followed by a postdiscal series of similar spots in interspaces 3 to 8, all or most of them centred with white; the spots in interspaces 5, 6 and 8 the largest, those in 5 and 6 often coalescent. Antennae and thorax anteriorly dull ferruginous, thorax posteriorly and abdomen above fuscous black; head, thorax and abdomen beneath yellow.
Female upperside: white faintly tinged with yellow. Fore wing: apical half black, with an enclosed, irregular, broad, oblique patch of the ground-colour that extends into the upper apex of the cell, on the inner side of this the black is reduced to a short oblique bar broadened at the lower apex of the cell, from whence it is continued as a somewhat slender diffuse oblique streak to the tornus, where it broadens again abruptly and meets the black on the termen; the outer margin of the oblique white patch is irregularly crenulate, sometimes trisinuate; the black colour on the apex often forms a right angle on vein 4; on the white patch posteriorly there is a black spot in interspace 2 and another in interspace 3. Hind wing: uniform, a few subobsolete slender, fuscous, transverse strigae posteriorly; the terminal margin sometimes with (more often without) a narrow dusky black edging, broadened anteriorly at the apices of the veins.

Underside: similar to that in the male, with similar markings, the ground-colour a dark dull ochraceous, the fusco-ferruginous strigae more numerous. Antennae, head, thorax and abdomen as in the male.

Wet-season brood.— Upperside in both male and female differs in the broader, more pronounced, black terminal edging to the hind wing, which is often remarkably broad, and in the female by the ground-colour which is pale yellow. Underside: the fusco-ferruginous strigae and spots often subobsolete, occasionally entirely absent in the male.