Deilephila rivularis
Deilephila rivularis is a butterfly (moth ) from the family of moth ( Sphingidae ). The species was considered by some authors as a subspecies of Deilephila elpenor. Meanwhile, however, the species status applies proven to be sufficient.
Features
The moths have a wingspan of 64-82 millimeters. You see Deilephila elpenor very similar to them, however, the pink - red regions of the body and the wings are cinnamon coated. The reddish color is much less vigorous than the similar kind The marginal area of the hind wings is wide especially on the wings. In the male genitalia, the extension of the sacculi is claw- shaped curved and strongly sclerotized. The aedeagus carries forward a strikingly strong, subapical oblique, serrated ridge, this elpenor each more pronounced than with Deilephila. Also the single cornutus is more pronounced.
The preimaginal stages have the same appearance as in Deilephila elpenor.
Occurrence and life
The species occurs in eastern Afghanistan in the Safed Koh Mountains in Kotkai at an altitude of 2350 meters and in central Afghanistan. It also comes in south Pakistan to Karachi and North east India prior to Dehra Dun, Uttar Pradesh and Nepal. They are found at altitudes between 2000 and 4000 meters. In the literature there are also supposed evidence of Sikkim, however, are certainly flawed, even though a copy of the Natural History Museum in London is marked with this discovery region.
The caterpillars feed in India of Arisaema and Spring herbs (Impatiens ), the moths fly in two generations a year, at least in February and March and from late June to July. About the other habit of the species and possible parasitoids is not known.