A Review of the Species of the Genus Gypona Occurring in North America North of Mexico (Homoptera)
Published in Annals of the Entomological Society of America, in 1920, in volume 13, issue 1, pages 83-100
Date published:1920
Published in Annals of the Entomological Society of America, in 1920, in volume 13, issue 1, pages 83-100
Date published:1920