Dear Sir/Madam,
I am attaching a below image link for identification purpose. Specimen captured from West Bengal, India in the month of May 2018. Please guide me.
This is a difficult one because it looks like it is the female of Pelopidas thrax.
The ssp masta is recorded from Sikkim to Manipur ,& as it feeds on cultivated grains could easily occur in West Bengal.
Pelopidas thrax: Male with the brand paler & more prominent.
Ground colour more uniform ; HW spot 6 large ,often largest & rounded (esp. male) ;cellspot also typically large.
HW spot 4 & 5 often more prominent ( esp. in female tend to be wide (ie elongate) .
HW spot 7 always absent.
"Face & chest" whiter than in mathias or agna.
Pelopidas mathias Male brand less prominent.
Underside with irregular pale (grey) shadings in the marginal zones & discal area of the HW.
HW spot 6 typically oblong .
HW spot 7 often present.
"Face & chest" not prominently white.
The large rounded HW spot 6 & general appearance suggest the female P. thrax but it is hard to be sure.
Note the HW spots are edged with dark brown. If you look carefully spots 4 & 5 appeared elongate. If this is correct the ID is almost certain. P. thrax ,Greece right side female. https://www.researchgate.net/figure/...fig1_267368648