New species of the plant bug genus Neolygus Knight from Japan, Taiwan and Thailand (Hemiptera: Heteroptera: Miridae: Mirini) Author Yasunaga, Tomohide text Zootaxa 2024 2024-05-02 5446 4 451 487 http://dx.doi.org/10.11646/zootaxa.5446.4.1 journal article 10.11646/zootaxa.5446.4.1 1175-5326 11102124 C204C80E-332C-4537-A6BA-1FC372BD6783 Neolygus fuscovultus n. sp. Figs. 1I , 11J–L , 20A–F Material examined. Holotype ( ♀ ). TAIWAN : Nantou Co., Huiseun Forest Area , forest trail no. 45 toward Guandao trail, 24.0828 , 121.0319 , 1000–1200 m alt., 14 Mar 2017 , T. Yasunaga et al. ( NMNS ) ( AMNH _ PBI 00378772 ). Diagnosis. Currently known only by the holotype female. Recognized readily by its oval, stout body ( Fig. 1I ); shiny chocolate brown head; narrow vertex; short antennal segment II that is shorter than labium; and semi-circular spot at apex of corium. This new species can be distinguished from any other Asian congeners by a combination of these characters; however, its closest relative is yet to be determined. Description. Holotype female : Body moderate in size, ovoid, stout; general coloration pale green ( Fig. 1I ), with densely distributed, pale, simple, reclining or semierect setae. Head wholly shiny chocolate brown, with sparsely distributed, short setae ( Fig. 20A ); vertex narrow; basal transverse carina of vertex slightly narrower than pronotal collar. Antenna pale brown; apical half of segment II, entire III and IV fuscous; segment II shorter than labium. Labium reddish brown, reaching apex of mesocoxa. Pronotum, scutellum and thoracic pleura pale green; scent efferent system pale brown, with narrow peritreme ( Fig. 20C ). Clavus tinged with brown; apex of corium with dark, semicircular spot; membrane pale smoky brown, with pale veins and two obscure spots at middle and near apex of cuneus. All coxae and legs pale green; metafemur with two apical brown rings. Ventral side of abdomen pale green. Female genitalia (11J–L, 20D–F): Sclerotized rings small, elongate ovoid, mesially separated to each other ( Fig. 11L ); posterior wall as in Figs. 11K , 20D–F ; interramal sclerite with sparsely distributed spinules between inner bases of interramal lobes ( Fig. 20E–F ); interramal lobe wide, with fields of micro-spines laterally and inner corner ( Fig. 20D ); lateral lobe narrow, fused mesially ( Fig. 20F ). Measurements : See Table 1 . Etymology. From Latin, fuscus (= dark) combined with vultus (= countenance), referring to the uniquely fuscous head; an adjective. Distribution . Taiwan ( Nantou ). Biology. Unknown.