Slide showing photograph of two moths, male and female of the genus 'Lymantria dispar'. Slide shows a black and white photograph of two moths, male and female of the genus 'Lymantria dispar' (Gypsy moth). The larger, male moth appears above, and the smaller female appears below. Title below photograph reads: 'Fig. 1. Above [male], below [female] of Lymantria dispar L. (German race.)' Late 19th to early 20th century