FIGURE 1. Map showing the location of the fossil site near Caergen Village.
FIGURE 2. Vegetation surrounding Caergen Village and outcrops of the fossiliferous strata. Red mark is the fossil collection location, photo 24 Jul 2015.
FIGURE 3. Helius (Helius) qinghai n. sp., photography of the holotype No. CNU-DIP-QZ2017001; 1 - body, 2 - male genitalia, 3 - head, 4 - left wing (photo by Siyuan Wu).
FIGURE 4. Helius (Helius) qinghai n. sp., drawings of the holotype No. CNU-DIP-QZ2017001; 1 - head, 2 - male genitalia, 3 - relation between the length of palpi (p), antenna (a) and rostrum, 4 - wing (a - antenna, fl - flagellomeres, g - gonocoxite, ing - inner gonostylus, oug - outer gonostylus, p - pedicel, pl - palpi, r - rostrum, scp - scapus, t - tergite) (drawings by W. Krzemiński).
