On the bionomics of Lyctocoris beneficus (Hiura) and Xylocoris galactinus (Fieber) (Anthocoridae, Heteroptera)

Abstract

with its biological data. His materials were collected from 31 localities which were covering the entire Japan except Hokkaido. The anatomical studies on the ovariole and alimental canal of this bug as well as Xylocoris g&z&us (Fieber) were conducted by Miyamoto (1957Miyamoto ( , 1961. The generic name of this bug was later revised to Lyctocoris by I-Iiura (1966). The distribution of this bug is now confined to Japan and Quelpart Island in Korea (Miyamoto and Lee 1966).On the contrary, XyZocoris galactinus (Fieber) was discovered more than 130 years ago. At first, Fieber (1836) described the species under the name of Anthocoris galactinus. Since then, it has long been known as Piezostethus galactinus (Fieber). Its taxonomical, morphological and biological studies as well as collecting data have been accumulated by many workers (Reuter 1884,