Lethe drypetis

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Lethe drypetis
Tamil treebrown (Lethe drypetis drypetis) female.jpg
Female, Sri Lanka
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Nymphalidae
Genus: Lethe
Species:
L. drypetis
Binomial name
Lethe drypetis
(Hewitson, 1863)

Lethe drypetis, the Tamil tree brown, [1] [2] is a species of Satyrinae butterfly found in South India and Sri Lanka. [1] [2]

Contents

Description

Male: Upper-side very dark Vandyke brown; forewing uniform: hindwing with a postdiscal series of three or four blind black ocellar spots. Underside, brown; forewing below vein 2 and terminal margin paler, with a broad band across the cell, the wing medially and at apex suffused with lilac, bearing an incurved postdiscal series of five, blind black ocelli. Hindwing: sub basal and discal narrow transverse lilac bands, the former sinuous, the latter angulated on vein 4, and an arched postdiscal series of black fulvous-ringed ocelli, some with disintegrate centres; the wing medially suffused with lilac, the ocelli with lilacine lunules on both sides. Forewings and hindwings with slender lilacine subterminal and broader ochraceous terminal lines. [3]

Female: Similar to male, with ground colour paler; a broad oblique white discal bar and two white preapical spots on the upper-side of the forewing; a large, rectangular black subterminal mark in interspaces and a white spot above and below it, on the upper-side of the hindwing. Underside similar to the underside in the male, all the markings more prominent, the lilac, ochraceous and brown shades paler; the broad discal bar on forewing, as on the upper-side, joined by a nearly vertical lilacine white band bearing the series of ocelli. [3] [4]

On the hindwing, a brown transverse discal band is very broadly produced between veins 4 and 5. Antennae, head, thorax and abdomen brown; antennae ochraceous at apex. [3]

Wingspan 64–68mm. [3]

Found in southern India and Sri Lanka. [3]

Life history

Larva. "Fusiform; head conical, the vertex pointed and projected forward, anal segment pointed and projected hind ward. Colour pale green, with paler transverse lines on each segment; a lateral and a sublateral pale-bordered reddish stripe extending the whole length, including the anal segment. Feeds on bamboo." (After Frederic Moore) [3]

Pupa. "Suspended by the tail, broad and truncated anteriorly, abdominal segments dorsally convex, head and vertex both pointed; colour pale green." (After Moore) [3]

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References

  1. 1 2 Varshney, R.K.; Smetacek, Peter (2015). A Synoptic Catalogue of the Butterflies of India. New Delhi: Butterfly Research Centre, Bhimtal & Indinov Publishing, New Delhi. p. 165. doi:10.13140/RG.2.1.3966.2164. ISBN   978-81-929826-4-9.
  2. 1 2 Savela, Markku. "Lethe drypetis (Hewitson, 1863)". Lepidoptera and Some Other Life Forms. Retrieved July 2, 2018.
  3. 1 2 3 4 5 6 7 PD-icon.svg One or more of the preceding sentences incorporates text from this source, which is in the public domain : Bingham, Charles Thomas (1905). Fauna of British India. Butterflies Vol. 1. pp. 79–80.
  4. PD-icon.svg One or more of the preceding sentences incorporates text from this source, which is in the public domain : Moore, Frederic (1890–1892). Lepidoptera Indica. Vol. I. London: Lovell Reeve and Co. pp. 257–259.