14 Lateral view of metasternum of Zygocardiophorus nigratissimus Buysson Scale bar = 0.5 mm). LC = lateral carina; MTP = metepisternum; MTS = metasternum15–16 Dorsal view of anterior end of left elytron of Cardiophorinae Scale bar = 0.5 mm). 15 Cardiophorus gramineus 16 Paracardiophorus cardisce (Say) 17–18 Hind wing of Elateroidea Scale bar = 1 mm) 17 Anelastes druryi (Kirby) 18 Blaiseus bedeli. Vein names follow Kukalova-Peck and Lawrence (2004)19–20 Left metacoxal plate and metepisternum of Elateroidea Scale bar = 0.5 mm). 19 Aulonothroscus punctatus (Bonvouloir) 20 Cardiophorus gramineus. MCX = metacoxal plate; MTS = metepisternum21–22 Metatarsal claws of Cardiophorinae Scale bar = 0.5 mm). 21 Dicronychus cinereus 22 Diocarphus solitarius. Captions reflect the revised classification.