Migration of Nymphalidae (Nymphalinae), Brassolidae, Morphidae, Libytheidae, Satyridae, Riodinidae, Lycaenidae and Hesperiidae (Butterflies) through Portachuelo Pass, Rancho Grande, North-central Venezuela
Published in Zoologica, in 1951, in volume 36, issue 1, pages 1-16
Date published:1951