The Tree Flitter (Hyarotis adrastus praba 希弄蝶) has an irregular white fascia on the underside of the hindwing. There are 3 apical spots on the forewings. The wings are dark brown in colour . The antenna has a white patch below the apicus – a distinct feature of this genus.
This Tree Flitter was spotted sipping nectar from the flower of a Panama Rose in the Hong Kong Park this morning.
Grey Pansy (Junonia atlites 波紋眼蛺蝶) usually appears around the reed marsh in Hong Kong in summer. The upper sides of its wings are pale brown with a row of distinctive orange eye spots.
This Grey Pansy which is a rare visitor in the Hong Kong Park, was spotted enjoying a sunbath near the fish pond this morning.
This Mottled Emigrant (Catopsilia pyranthe 梨花遷粉蝶) was spotted in the Shing Mun Valley Park, Tai Wo Hau, Kowloon this morning.
The Mottled Emigrant, which is medium in size, can be seen all year round in Hong Kong.
The upper wing surfaces of Mottled Emigrant are greenish white, while the lower wing surfaces are yellow with light brown wavy patterns. They are very active and are swift flyers.
The Five-bar Swordtails (Pathysa antiphates 綠鳳蝶 ) are remarkable for the very long, slender and tapering tail on the hindwing, resembling a long sword. They are forest butterflies and are very swift on the wing, with an erratic flight. The species is creamy white above, with a series of black transverse stripes in the costal area of the forewing. On the underside, the basal half of the hindwing is green, with black stripes and spots. The butterfly has a wingspan of 40 – 45 mm.
I saw this beautiful butterfly sucking water from a pond in the Hong Kong Park a few days ago. It was reported that some people had found this butterfly urinating from time to time when sucking water.
The Common Rose ( Pachliopta aristolochiae 紅珠鳳蝶) is a swallowtail butterfly belonging to the genus Pachliopta, the roses, or red-bodied swallowtails.
With a wingspan of 9.0 – 10.0 cm the Common Rose is black with white and red spots. Hind wings have tails. Its striking red body and the bright red marks on the wings make it stand out not only in its environment but also in the swallowtail family. The pretty colouration is a warning sign which indicates “poison” to its predators.
This common rose was spotted yesterday morning in the Hong Kong Park.
The common Mormon ( Papilio polytes 玉帶鳳蝶 ), is a common species of swallowtail butterfly and is one of the most common butterflies found in Hong Kong parks. It usually flies around nectar food plants such as Lantana. Its black hindwings consist of a white band made up of white spots, making it distinctive among other butterflies.
The male common Mormon is a dark-coloured swallow-tailed butterfly. The upper forewing has a series of white spots decreasing in size towards the apex. The upper hindwing has a complete discal band of elongated white spots.
This common Mormon was encountered last month in the Hong Kong Park.
Another common butterfly, the Common Gull ( Cepora nerissa 黑脈園粉蝶) photographed in the Hong Kong Park today. This is a small to medium-sized butterfly, which belongs to the Pieridae family (Yellows and Whites).
The Common Gull is white on the upperside with black wing margins and yellow with black markings on the underside. The colours are bright in the wet season form and dull in the dry season form.
Today – 1 May 2019 – is a holiday in Hong Kong for Labour Day. It is a warm and sunny morning in the Hong Kong Park. As usual, many shutter bugs flock to the small garden near the waterlily pond where butterflies flutter around over the flowering plants. Once a butterfly stops on a flower sipping nectar, there comes suddenly a continuous burst of shutter release clicking sound and people are thrilled when they caught it digitally.
We may be lucky to see a few rare species of butterflies showing up today.
A Golden Birdwing (Troides aeacus 金 裳 鳳 蝶 ), which is one of the largest butterflies in Hong Kong, is spotted flying around the tree tops. Their wingspan can be as wide as 16 cm, They are listed as butterflies of local conservation concern.
While taking pictures in the Hong Lok Park, Fanling this morning, a beautiful dragonfly – Variegated Flutterer (Rhyothemis variegata arria 斑麗翅蜻) was spotted standing at the tip of a grass. It is a distinctive dragonfly in Hong Kong. Its forewings and hindwings have a distinct black and yellow pattern. Sometimes it is mistaken as a butterfly as it flies like a butterfly. 
Paris Peacock (Papilio paris 巴黎翠鳳蝶) is a large butterfly of the Papilionidae Family. The uppersides of its wings are black and its hindwings are characterized by patches of metallic blue scales, which glows under the sun and they have long black tails on their hindwings.
I spotted this Paris Peacock in the Hong Kong Park a few days ago.
The Chinese Yellow Swallowtail Butterfly (Papilio Xuthus 柑橘鳳蝶) is a mid-sized, pale yellow, prominently-tailed butterfly. It has a wingspan of 45 to 55 mm. Its normal color pattern consists of a black pattern on a yellow background. The butterfly is a rare species in Hong Kong.
This butterfly was spotted on a sunny morning in the Hong Kong Park on 18 March this month.
The Graphium Agamemnon is commonly known as the Tailed Jay (統帥青鳳蝶). This butterfly also goes by the names Green-Spotted Triangle, Tailed Green Jay, or the Green Triangle. It has black wings which are speckled with fine green spots. Being a strong and restless flyer, it is so active that it flutters its wings constantly when visiting flowers.
I spotted this Tailed Jay in the Hong Kong Park on 18 March. When it is perched on a leaf against the sun, one will be amazed to see the green colored patches on its wings becomes transparent.
The male Great Egg-fly (Hypolimnas bolina 幻紫斑蛺蝶) has black wings decorated with eye-catching metallic blue patches in the middle. It flies swiftly and is strongly territorial.
This graceful Great Egg-fly also called Blue Moon butterflies dances in the garden with elegant dress in the Hong Kong Park yesterday.
The Indian Cabbage White (Pieris canidia 東方菜粉蝶), a medium size butterfly, is common and can be seen all year round in Hong Kong. The wings of Indian Cabbage White are mainly white, while the wing tips and surfaces are decorated with black patches. It is a slow flyer, and one of the commonest butterflies in Hong Kong.
This Indian Cabbage White was encountered in the Hong Kong Park on the 16th of this month.
The Common Jester (Symbrenthia lilaea, 散紋盛蛺蝶), a brightly-coloured butterfly with three horizontal orange bands on the upper side of its wings, while the underside is yellow with brown blotches, was spotted on a sunny morning in the Hong Kong Park on 17th of this month. It is usually seen in forests usually basking on leaves near the ground or found feeding on nectar from flowers. This butterfly can be easily found in Hong Kong.
