Hemeroplanes triptolemus

• 
  Female dorsal
  (coll.MHNT)
• 
  Female ventral
  (coll.MHNT)

Its chest and wings are covered in scales. The moth uses a proboscis to feed itself nectar. Both males and females have a relatively long lifetime of 10 to 30 days. The female moths lay pellucid green eggs. Egg growth varies strongly from 3 to 21 days. There are at least two generations per year with peak flights from January to February and again from June to July.^{[citation needed]}

The larvae feed on Mesechites trifida. In its larval form, the Hemeroplanes triptolemus is capable of expanding its anterior body segments to give it the appearance of a snake, complete with eye patches. This snake mimicry extends even to the point where it will harmlessly strike at potential predators.^{[2][failed verification]}

The moth is known from Costa Rica, Belize, Mexico, Guatemala and probably flies throughout Central America into Colombia, Ecuador, Bolivia, Argentina, Venezuela and Guyana.^{[citation needed]}