Isognathus menechus
Isognathus menechus is a moth of the family Sphingidae. Distribution. It is found from Cuba to Bolivia, Argentina and Brazil. Description. It is a heavy-bodied species. The upperside of the body and forewings has a bluish-grey cast and the bands on the upperside of the abdomen are well marked. Biology. There are probably multiple generations per year. The larvae have been recorded feeding on "Himatanthus lancifolius". They have long tails and are very colourful, suggesting they are unpalatable to birds.