About Psilogramma menephron Cramer, 1780
Psilogramma menephron has a wingspan ranging from 82 to 138 mm. Its head, thorax, abdomen, and forewings are all grey. Dark brown bands run along the sides of the palpi and thorax, meeting at the metathorax, which bears a small number of blue and yellow scales. A dark line extends down the vertex of the abdomen, paired with more diffused subdorsal lines. The forewings have several dark strigae originating from the costa. There are two dark streaks in the interspaces below veins 2 and 3, and an additional dark streak that extends down from the costa before the apex, curving down to vein 6, then moving upwards and bending back before reaching the apex. Hindwings are brownish, with a pale patch crossed by two dark lines near the anal angle. The ventral side is significantly paler, with indistinct transverse lines. The larva is greenish, with white specks on the vertex of the first, second, and third somites. It bears oblique white lateral stripes on the fourth and eleventh somites.
