Abstract
External genitalial morphology of seven species belonging to the subfamily Sphinginae (Sphingidae) i.e., Agrius convolvuli (Linnaeus), Psilogramma menophron menophron (Cramer), Psilogramma incereta Walker, Acherontia styx styx (Westwood), Leucophlebia emittens Walker, Marumba dyras dyras (Walker) and Polyptychus trilineatus trilineatus Moore were studied. Besides this, keys to the subfamilies, tribes, genera and species studied are given.