| Small four-line blue | |
|---|---|
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| Underside | |
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Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Lepidoptera |
| Family: | Lycaenidae |
| Genus: | Nacaduba |
| Species: | N. pavana |
| Binomial name | |
| Nacaduba pavana (Horsfield, 1828) | |
Nacaduba pavana, the small four-line blue or Singapore four-line blue, [1] [2] is a species of lycaenid butterfly found in Southeast Asia.
Male upperside: purple with a frosted silvery-blue sheen very much as in N. macrophthalma. Forewing: a slender black anteciliary line. Hindwing: costal and dorsal margins somewhat broadly dull brown, an anteciliary black line as on the forewing; the subterminal black spots in interspaces 1 and 2 of the underside apparent in most specimens by transparency. Underside: ground colour and markings similar to those of N. macrophthalma but far more slender and more neatly defined. Antennae, head, thorax and abdomen as in N. macrophthalma.
Female upperside, forewing: costa broadly, apex and termen still more broadly brown; a narrow edging of pale brown along the dorsal margin; rest of the wing grey, shot with iridescent blue in certain lights. Hindwing: pale brown, much paler than the brown on the forewing; base very obscurely shot with iridescent blue; costal and dorsal margins brownish white; a transverse subterminal series of black spots edged inwardly and outwardly with slender white lines, two minute spots in interspace 1 geminate (paired), that in interspace 2 large, these three crowned inwardly beyond the white edging with an additional dusky spot. Underside: very similar to that of the male, ground colour paler, transverse white strigae broader. Both male and female have the basal area of the forewing within the transverse white strigae lining the inner side of the discocellulars immaculate, as in N. macrophthalma and N. kerriana. [3]
Charles Thomas Bingham (1907) reports the butterfly from Sikkim; Bhutan; Assam; Cachar; Burma; Tenasserim; the Andamans. Described originally from Java. [3]
As per Savela the butterfly ranges from Tibet, India - Myanmar, Thailand, Malaysia, Singapore, Langkawi, Sumatra, Philippines (Mindanao) and Sulawesi. [1]
The butterfly has five subspecies: [1]
The subspecies N. p. vajuva Frühstorfer 1916, which is known as the violet four-line blue, occurs in India, Myanmar and Thailand. [1] It was earlier considered a separate species. [4]
Leptotes plinius, the zebra blue or plumbago blue, is a species of blue butterfly (Lycaenidae) found in Sri Lanka, India to Australia. The species was first described by Johan Christian Fabricius in 1793.
Azanus jesous, the African babul blue or topaz-spotted blue, is a small butterfly found in Africa, Egypt, Syria, India, Sri Lanka and Myanmar that belongs to the lycaenids or blues family.
Megisba malaya, the Malayan, is a small butterfly found in South Asia and Southeast Asia. It belongs to the family of gossamer-winged butterflies (Lycaenidae). The species was first described by Thomas Horsfield in 1928.
Chilades lajus, the lime blue, is a small butterfly found in India, Sri Lanka, Myanmar, Taiwan, Hong Kong, Hainan, Mangulam Island, Sulawesi and the Philippines that belongs to the lycaenids or blues family.
Jamides celeno, the common cerulean, is a small butterfly found in Indomalayan realm belonging to the lycaenids or blues family. The species was first described by Pieter Cramer in 1775.
Lycaenopsis marginata, the margined hedge blue, is a small butterfly found in India that belongs to the lycaenids or blues family.
Lycaenopsis transpectus, the white-banded hedge blue, is a small butterfly found in India that belongs to the Lycaenids or Blues family.
Nacaduba pactolus, the large four-line blue, is a species of lycaenid butterfly found in Indomalayan realm.
Nacaduba angusta, the white lineblue, is a lycaenid butterfly found in South Asia. The species was first described by Herbert Druce in 1873.
Petrelaea dana, the dingy lineblue, is a species of lycaenid butterfly found in Indomalayan realm.
Nacaduba kurava, the transparent six-line blue, is a Lycaenidae butterfly found in Asia and Australia. The species was first described by Frederic Moore in 1857.
Prosotas nora, the common lineblue, is a species of lycaenid butterfly found in Asia to Australia. The species was first described by Rudolf Felder in 1860.
Prosotas noreia, the white-tipped lineblue, is a species of lycaenid butterfly found in South Asia and Java.
Nacaduba hermus, the pale four-line blue, is a species of lycaenid butterfly found in Indomalayan realm. The species was first described by Baron Cajetan von Felder in 1860.
Nacaduba berenice, the rounded six-line blue, is a lycaenid butterfly found in Indomalayan realm. The species was first described by Gottlieb August Wilhelm Herrich-Schäffer in 1869.
Plebejus christophi, the small jewel blue, is a small butterfly found in Asia that belongs to the lycaenids or blues family.
Prosotas bhutea, the Bhutya lineblue, is a species of blue butterfly (Lycaenidae) found in Asia.
Catochrysops strabo, the forget-me-not, is a small butterfly found in Asia that belongs to the lycaenids or blues family. The species was first described by Johan Christian Fabricius in 1793. It is found in Sri Lanka, India, from Sikkim to Indochina and in Sundaland, Sulawesi and the Philippines.
Monodontides musina, the Swinhoe's hedge blue, is a butterfly of the family Lycaenidae. It is found in South-East Asia, including India.
Udara singalensis, the Singalese hedge blue, is a species of Lycaenidae butterfly. It is endemic to Sri Lanka.