The assassin bug genera Nagustoides and Stenolemus (Hemiptera: Heteroptera: Reduviidae) newly recorded from Japan Author Ishikawa, Tadashi Author Naka, Takeru text Zootaxa 2016 4161 4 593 600 journal article 10.11646/zootaxa.4161.4.12 e1790d40-e961-4ece-9ecf-4c6e483c7bab 1175-5326 272274 C6CEC2A3-97DA-407B-9647-6244DE0A49AB Genus Stenolemus Signoret, 1858 Stenolemus Signoret, 1858 : 251 (new genus). Type species: Stenolemus spiniventris Signoret, 1858 , by monotypy. Stenolaemus Lethierry & Severin, 1896 : 70 : Incorrect subsequent spelling. Phasmatophanes Kirkaldy, 1908 : 369 (new genus). Type species: Phasmatophanes muiri Kirkaldy, 1908 , by monotypy. Synonymized by Bergroth (1911: 17) . With approximately 80 species ( Maldonado-Capriles 1990 ), Stenolemus is one of the more species-rich genera in the tribe Emesini of the subfamily Emesinae , with a distribution range that includes all biogeographical regions. Diagnostic characters of the genus within the Emesini are: rostral segment I (true labial segment II) as long as or longer than rostral segment II (true labial segment III) ( Fig. 25 ); pronotum pedunculate ( Figs. 17–18 , 20–21 ); posterior pronotal lobe with a pair of projections on disc ( Figs. 18 , 21 ); forewing with discal and basal cells in macropterous form ( Fig. 19 ); and protarsus two-segmented ( Fig. 26 ). Wygodzinsky (1966) provided a detailed redescription of the genus. The species mentioned below is the first representative of the genus Stenolemus in Japan.