Contents

12 April 1985
Vol 228, Issue 4696

About The Cover

“Fur” (technically pile) on thorax of moth, Orthosia rubescens. Such fur allows noctuid winter moths to maintain thoracic temperatures above 30°C during flight at near freezing temperatures in late winter. It consists of modified scales (that color Lepidoptera wings), elongated to near 2 millimeters to serve as insulation. See page 177. [Bernd Heinrich, University of Vermont, Burlington 05405]