1. 7297.g.4, 1(21) Reference (shelfmark): 7297.g.4, 1(21) Title: Ein Vorderflügel der struppigen Florfliege. (Hemerobius hirtus.) [Forewing of the fly Hemerobius hirtus]. Photographer: Heeger, Ernst Scope & Content: Genre: Scientific Photography Photomicrograph. Collection Area: Printed Collections Languages: Not applicable Date Range: c 1859 Extent: 1 item