Pflugfelder, O. 1939 Coccina.. Bronns, H.G., Klassen und Ordnungen des Tierreichs. Vol. 5, Bk. 8. 121 pp.
Notes: Vol. 5, Bk. 8, 121 pp. General discussion, including development, morphology, biology and ecology, control, outline of classification.
Pflugfelder, O. 1939 Coccina.. Bronns, H.G., Klassen und Ordnungen des Tierreichs. Vol. 5, Bk. 8. 121 pp.
Notes: Vol. 5, Bk. 8, 121 pp. General discussion, including development, morphology, biology and ecology, control, outline of classification.