This site has been created by Keith Dover and Keith Regan. Its primary purpose is to make available the text of the definitive description of the lepidoptera of Northumberland and Durham by Tom Dunn and Jim Parrack. To date we have added all the "macro" text published in 1987. We are now in the process of adding the current status of each species to the text. The period after the publication has seen rapid changes in the status of many species and is one of the reasons for creating this site.

We will also be adding the text of the "micros", published in 1993, as time permits.

It is also our intention to create a resource that will go beyond the book. This is why we have added the flight search facility to show what species are flying at any time of the year.