The tribe Anthocorini in Japan (Hemiptera: Anthocoridae): descriptions of new species, review of distribution and bionomics Author Yamada, Kazutaka Tokushima Prefectural Museum, Bunka-no-Mori Park, Mukôterayama, Hachiman-chô, Tokushima 770 - 8070, Japan; Author Yasunaga, Tomohide Research Associate, Division of Invertebrate Zoology, American Museum of Natural History, New York, c / o Nameshi text Acta Entomologica Musei Nationalis Pragae 2021 2021-10-19 61 2 375 426 journal article 10.37520/aemnp.2021.022 1804-6487 5820961 32519CC9-3658-469A-926D-6A1EBEE0FC59 Key to the genera of Anthocorini occurring in Japan 1. Metasternum apically truncate or weakly rounded; metacoxae widely separated from each other. ......... 2 – Metasternum apically triangular; metacoxae contiguous with each other. ................................................. 3 2. Labium usually extending to mesocoxae ( Fig. 1B ); lateral margin of pronotum notched at the border of collar and callus ( Figs 1A,C ); ostiolar peritreme protruding, directed transversely toward the outer margin of metapleuron and almost truncated or obtuse at its apex ( Figs 2A–B ). ......... Temnostethus Fieber, 1860 – Labium reaching or barely exceeding procoxae ( Fig. 1F ); lateral margin of pronotum straight ( Fig. 1E ); ostiolar peritreme subplanate, directed obliquely toward the outer margin of metapleuron and gently acute at its apex ( Fig. 2C ). ............. Elatophilus Reuter, 1884 3. Hemelytra impunctate or shallowly punctate; abdominal sternum with a pair of membranous areas on segments II–III ( Fig. 12 ). ... Anthocoris Fallén, 1814 – Hemelytra densely covered with setigerous punctures; abdominal sternum without membranous area.. ....... 4 4. Ostiolar peritreme protruding slightly at the apex but not prolonged tongue-like, its apex continued by a fine carina ( Fig. 5A ). ...... Acompocoris Reuter, 1875 – Ostiolar peritreme apically projected, tongue-like and protruding above the surface of evaporatorium, its apex not continued by a fine carina ( Fig. 5D ). ........... ............................................ Tetraphleps Fieber, 1860