Description: English: Fig. 5-8 Somatochlora hudsonica Fig. 9-12 Somatochlora walkeri [later synonymised with S. sahlbergi by E. M. Walker, and fig 12 determined to be misidentified] Fig. 13-16 Somatochlora albicincta Fig. 17-20 Somatochlora septentrionalis Fig. 21-24 Somatochlora cingulata. Date: 1917. Source: Kennedy, Clarence Hamilton (1917). "A New Species of Somatochlora (Odonata) with Notes on the the Cingulata Group". The Canadian Entomologist. 49 (7): 229–236. Author: Clarence Hamilton Kennedy (1879-1952).