A. Polia serratilinea (Treitschke, 1825), medial part of the antenna with very short, slightly asymmetric processes, with long sensilla chaetica in terminal position, and with terminally curved sensilla trichoidea, 100× magnification.; B. Polia serratilinea (Treitschke, 1825), stalk and dorsal processes of the antenna, with strong, straight sensilla chaetica and densely situated terminally curved sensilla trichoidea, 300× magnification.; C. Polia (Metallopolia) kisculta Varga, Gyulai, G. Ronkay & L. Ronkay, 2017, medial part of the antenna with long, strongly asymmetric processes, with long sensilla chaetica in terminal position, and with long, fine sensilla trichoidea, 60× magnification.; D. Polia (Metallopolia) kisculta Varga, Gyulai, G. Ronkay & L. Ronkay, 2017, stalk and dorsal processes of the antenna, with strong, slightly arcuate sensilla chaetica in terminal position, and with long and thin, nearly straight sensilla trichoidea, 120× magnification; E. Polia (Metallopolia) dysgnorima Varga, Gyulai, G. Ronkay & L. Ronkay, 2017, medial part of the antenna with long, strongly asymmetric processes, with very long, slightly arcuate sensilla chaetica in terminal position, and with long, fine sensilla trichoidea, 60× magnification.; F. Polia (Metallopolia) dysgnorima Varga, Gyulai, G. Ronkay & L. Ronkay, 2017, stalk and dorsal processes of the antenna, with strong, very long and slightly arcuate sensilla chaetica in terminal position, and with long and thin, often slightly curved sensilla trichoidea, 160× magnification.