Description: English: Plate 113. DescriptionBinomial in textModern accepted name. 1, 1a. Purple Thorn: eggs and caterpillar.Selenia tetralunariaunchanged. 2, 2a. Lunar Thorn: caterpillar and chrysalis.Selenia lunariaSelenia lunularia. 3. August Thorn: caterpillar.Ennomos quercinariaunchanged. Date: 1909. Source: The Moths of the British Isles, Second Series. Author: Richard South.