The genus Xylocoris found from plant debris in Thailand, with description of a new species of the subgenus Arrostelus (Hemiptera: Heteroptera: Anthocoridae)
Kazutaka Yamada, Tomohide Yasunaga, Taksin Artchawakom
Two species of the minute pirate bug genus Xylocoris Dufour, 1931 were found from plant debris on the ground in central Thailand: Xylocoris (Arrostelus) ampoli Yamada & Yasunaga sp. nov., showing wing dimorphism, and X. (Proxylocoris) cerealis Yamada & Yasunaga, 2006, previously known only from the rice mill factories. A finding of X. ampoli Yamada & Yasunaga sp. nov. represents the second discovery of the subgenus Arrostelus Kirkaldy, 1906 in the Oriental Region. Biology and zoogeography of Arrostelus are discussed and a key to the species occurring in the Oriental Region is also provided.