Cigaritis vulcanus

Common Silverline
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Lycaenidae
Genus: Spindasis
Species: Spindasis vulcanus
Binomial name
Spindasis vulcanus
(Fabricius, 1775).

The Common Silverline, Spindasis vulcanus is a species of lycaenid or blue butterfly found in Asia.

Description

The wingspan is 26–34 mm.

Distribution

These butterflies are found in Sri Lanka, India, central Thailand and Java. The species has been spotted in numerous territories of Maharashtra, Orissa, Karnataka, Kerala, Andhra Pradesh, West Bengal, Delhi, Madhya Pradesh, Uttar Pradesh, Tamil Nadu of India.

Pattern

Male

Silverline Mating.jpg

It is very easily distinguishable from its similar species simply because it is the smallest. The upper sides of the wings of both sexes are dark gray brown to slate. It lacks the obvious brightest blue, which is only visible in an oblique light. The upper surface on the underside hind wing, the central band is more separated from the outer band than in any other species, making the yellow area much wider and a distinctive feature.

In some the upper side forewing orange bands are either weak or absent. The hind wing is borded with a similar streak along the termen. The upper side of the fore wing has bands which are reddish orange. The 3rd is bifurcate but long and the 4th has two silver spots.

Female

It is similar as the male. There is a long orange marginal band on the upper side of the hind wing which is easily distinguishable from its similar species.

Habitats

It is the commonest Spindasis. Their numbers peak during the south-west and north-east monsoons. It inhabits scrub land with sparse vegetation, hedge rows, scrub jungles and secondary forest.

Habits

They are difficult to disturb when nectaring on flowers but are able to fly fast erratically. Even when disturbed they return to the same spot moment later. Mainly found near their host palts.

Food Plants

The larvae feed on Jujube, Zizyphus rugosa, Lxora longifolia, Clerodendrum siphomanthus, C. inerme,[1] Allophylus cobbe, Ixora chinensis[2] and Canthium parviflorum.

Common silverline female open wing
Common Silverline male open wing

References

  1. Kaur, SA (2010). "Biology of common silverline, Spindasis vulcanus (fabricius) (Theclinae: Lycaenidae: Papilionoidea)". Journal of Entomological Research 34 (4): 337–339.
  2. Soumyajit Chowdhury; Rahi Soren; Suvankar Patra (2009). "Ixora chinensis Lam.: a new host plant for Common Silverline Spindasis vulcanus Fabricius, (Lepidoptera: Lycaentdae) from West Bengal.". Journal of the Bombay Natural History Society 106 (3): 348–349.


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