Bastilla joviana

SS: Bastilla joviana

JR: Though it's already published, I am adding few additional information for future reference:
Bastilla joviana is usually difficult to distinguish from its closely related species, Bastilla myops. In Poole (1989), B. myops was treated as a synonym of B. joviana, largely due to the similarity in their external wing patterns. However, Holloway (2003) recognized B. myops as a valid species, noting significant differences in genitalia morphology between the two.
My recent observation from Chittagong, Bangladesh (https://www.inaturalist.org/observations/187254169), involved a female specimen whose genitalia closely matched that of Bastilla myops.
Externally, based on my analysis (I might be wrong, though), the antemedial lines on the forewings of B. myops appear straighter compared to those of B. joviana. For instance, the specimen coded MOI-ppt 469 on our website is almost certainly B. myops.
Until now, B. myops had been recorded from Bali and Java (Holloway, 2003). My record from Bangladesh represents the first observation of this species on the Indian subcontinent. This suggests that B. joviana and B. myops may occur sympatrically in this region.