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]
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.
^ abVane-Wright and de Jong (2003) (see TOL web pages on genus Bibasisgenus 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.