Nythomiris nagamasai Yasunaga, 2024, sp. nov.

Nythomiris nagamasai sp. nov. (Figs 3A–B, 4A− B, 5A–D, 6D–E, 15A–H, 16A–G) Type material. HOLOTYPE: J, THAILAND: Phranakhon Si Ayutthaya, Huntra, Rajamangala University of Technology Suvarnabhumi (RMUTSB), Huntra Campus, 14°22′39.3″N 100°36′22.0″E, on flowers of Acacia sp., 24.viii.2008, T.Yasunaga (DOAT) (AMNH _ PBI 00378800). PARATYPES: THAILAND: Same data as for holotype, 3 ♀♀ (TYCN); same locality and collector, flowers of Cassia sp., 24.x.2008, 1 J 3 ♀♀ (SNUC, TYCN, ZRC). Diagnosis. Recognized by its pale dorsum; narrow vertex; reddish striae on frons; rather shorter antennomere II that is shorter than metafemur; tapered left paramere; short spicules and lobal sclerites on vesica; and rather enlarged sclerotized rings. These characters enable differentiation from the other congener, N. nepalicus sp. nov. Description. As in generic description. Body generally pale brown (Fig 12); dorsal surface relatively shining, almost glabrous or with very sparsely distributed, pale, simple, semierect setae (Figs 15B–C). Head shiny pale brown; vertex narrow, 0.18–0.22 (J) / 0.24–0.26 (♀) times as wide as head across eyes; frons with several reddish striae. Antenna pale brown; segment I with reddish, faint, small spots apically; segment II shorter than metafemur; apical half of segment II and apical 3/4 of each III and IV brown. Labium shiny pale brown, slightly exceeding apex of mesocoxa; segment I and apical 1/3 of segment IV dark reddish brown. Pronotum pale castaneous brown, partly irregularly and symmetrically maculate, with creamy brown posterior margin; collar yellowish brown, with several reddish, small spots; pleura castaneous, somewhat matte, with creamy yellow metathoracic scent efferent system; mesoscutum pale reddish brown; scutellum yellowish brown, with faint, brown stripe mesally. Hemelytron shiny pale brown, with dark brown, slash-like macula on median corium; inner half of clavus darkened; cuneus dark reddish brown, with creamy yellow apex; membrane pale smoky brown, semitransparent. Coxae castaneous brown; apical 1/3–1/2 of meso- and metacoxae pale brown (Figs 18–19); legs pale brown; metafemur and metatibia castaneous brown; metatarsomere II as long as III (Fig. 15H); pretarsal structures as in Fig. 15G. Abdomen shiny castaneous brown. Male genitalia (Figs 5A–C, 6D–E, 16A–C): left paramere rather gradually tapered toward apex (Figs 5A, 16B); vesical spicules and lobal-sclerites short (Figs 6D, 16C). Female genitalia (Figs 5D, 16D–G): sclerotized ring elongate ovoid, relatively large (Fig. 5D). Measurements. See Table 1. Etymology. Named after a Japanese ‘samurai’ (warrior), Nagamasa Yamada (1590–1630), who emigrated to the old Siamese capital, Ayutthaya (the Kingdom of Ayudoya), and worked as a commander under King Songtham; a noun in the genitive case. Biology. All specimens (including several teneral adults and final instar immature forms, Fig. 3B) were collected from inflorescences of broadleaf trees of the family Fabaceae, such as Acacia sp. and Cassia sp. Based on collection records, a bivoltine life cycle is presumed for N. nagamasai sp. nov. Distribution. Thailand (Phranakhon Si Ayutthaya).