Bibasis vasutana

Bibasis vasutana, the green awlet,[2] is a species of hesperid butterfly found in Asia. The butterfly was reassigned to genus Burara by Vane-Wright and de Jong (2003) and is considered by them to be Burara vasutana.[3]

Green awlet
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Hesperiidae
Genus: Bibasis
Species:
B. vasutana
Binomial name
Bibasis vasutana
(Moore, 1865)[1]
Synonyms

Ismene vasutana Moore, 1865[1]
Burara vasutana Vane-Wright & de Jong, 2003

Range

The green awlet is found in Nepal, the Indian Himalayas, Myanmar, Thailand and Laos.[2]

In India, the butterfly ranges from Kumaon, across Nepal along the Himalayas to Sikkim and Assam and eastwards towards Myanmar.[2][4]

The type locality is Darjeeling in northern West Bengal.[2]

Status

William Harry Evans described it is being not rare in the Himalayas.[4]

Description
For a key to the terms used, see Glossary of entomology terms.

.

The butterfly has a wingspan of 55 to 65 mm.[4]

Edward Yerbury Watson (1891) gives a detailed description:[5]

Male. Upperside deep purple brown, paler on the base of the wings; forewing with orange yellow costal basal streak. Cilia of hindwing broad and bright orange yellow. Underside glossy greyish green, the veins and narrow intermediate parallel lines blackish; a patch on posterior half of forewing brown bordered above with blue. Third joint of palpi brown, the rest orange yellow. Head, thorax in front and beneath, legs, middle of abdomen beneath, and anal tuft bright orange yellow.

Female. Upperside darker brown, the base of the wings greyish blue; forewing with two small semitransparent spots obliquely beneath the extremity.

Habits

This butterfly is crepuscular.[3]

Cited references
  1. Beccaloni, G.; Scoble, M.; Kitching, I.; Simonsen, T.; Robinson, G.; Pitkin, B.; Hine, A.; Lyal, C., eds. (2003). "Bibasis vasutana". The Global Lepidoptera Names Index. Natural History Museum. Retrieved April 19, 2018.
  2. Markku Savela's website on Lepidoptera Page on genus Bibasis.
  3. Vane-Wright and de Jong (2003) (see TOL web pages on genus Bibasis genus Burara in the Tree of Life Web Project) state that Bibasis contains just three diurnal species, the crepuscular remainder having been removed to Burara. The species now shifted to Burara are morphologically and behaviorally distinct from Bibasis, within which many authors have formerly included them.
  4. Evans, W.H. (1932). The Identification of Indian Butterflies (2nd ed.). Mumbai, India: Bombay Natural History Society. p. 319, ser no I 2.15.
  5. Watson, E. Y. (1891) Hesperiidae indicae.
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See also

References

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