Morphological studies on Jassids in Rewa Region

Abstract

Jassids are certainly capable of flying to a great distances. Colias fieldii, the Dark clouded Yellow, for instance, migrates across Europe, crossing the channel to Britain. Author thus finds that most Jassids have a fairly wide distribution. At the other extreme however, Jassids can be extremely local, inhabiting only a very small area. An example of Jassids which the author found near Deolond in October 2015, and then again in the same locality, and even on the same tree in November 2016, which must have been six generations later. Incidently this is really an East India Jassids, and the author knows of only one other record in Central India. When Jassids remain only in specific locality, they are liable to form different races from the isolated populations, which with time may develop into different subspecies or even species.