–> Robert L. Usinger. 1966. Monograph of Cimicidae (Hemiptera – Heteroptera). Entomological Society of America, Maryland (USA). 582 pp. Library of Congress Catalog Card No. 66-22730

–> Robert L. Usinger. 1966. Monograph of Cimicidae (Hemiptera – Heteroptera). Entomological Society of America, Maryland (USA). 582 pp. Library of Congress Catalog Card No. 66-22730
