FIGURES 14–20 in Cordulegaster virginiae sp. nov. from Mexico, including a comparison with C. diadema Selys, 1868, and a redescription of its larva (Odonata: Cordulegastridae)

FIGURES 14–20. Details of the morphology of the F-0 larva of Cordulegaster diadema. 14) Head and prothorax, dorsal view; 15) left mandible, ventrointernal view; 16) right mandible, internal view; 17) ventral view of maxilla and hypopharynx; 18) prementum, dorsal view; 19) distal margin of labial palpi and apex of ligula; 20 prementum, ventral view.