Orthonotus takaii Yasunaga 2022, n. sp.
Creators: name: Yasunaga, Tomohide
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Miridae
Orthonotus
Orthonotus takaii

description: Orthonotus takaii n. sp.
(Fig. 9 D−E; 10B−C, H−I; 16; 23J−O; 24I−L, O; 25G−L)
Orthonotus bicoloripes (misidentification, non Kerzhner, 1988): Yasunaga, 2001: 167, pl. 25, fig. 101 (diag.); Komatsu, 2016: 106 (local fauna).
Material examined. Holotype (♂). JAPAN: Nagano Pref., Matsumoto City, Iriyamabe, Tobira Hot-spring, 36.187, 138.082, 5 Jul 1999, M. Takai (AMNH) (AMNH _ PBI 00380703). Paratypes: JAPAN: Honshu, same data as for holotype, 3♂ 1♀ (TYCN); Nagano Pref., Matsumoto City, Shima-uchi, Nature Park, 36.266, 137.955, Malus toringo flowers, 4 Jul 1999, M. Takai, 3♂ 4♀ (TYCN); Aomori Pref., Takko-machi, Ryugamori, 40.31, 141.01, 28 Jun 1987, T. Ichita, 1♂ 1♀ (TYCN) (1♂ with USIs, 00380704); Okayama Pref., Ibara City, San’nou, 34.577, 133.466, 16 Jun 1993, Wesco Co., 1♀ (TYCN) (00380705).
Diagnosis. Recognized by the characters mentioned in above key and generic diagnosis. This new Japanese species was previously regarded conspecific with O. bicoloripes by Yasunaga (2001d) as a single female specimen of the latter (Fig. 9G) was available for comparison at the time. However, based on increased information, Orthonotus takaii n. sp. can be distinguished from O. bicoloripes by the following different features: Not sexually dimorphic (body ovoid in both sexes); all femora uniformly chocolate brown; basal 5/2−1/2 of each tibia darkened; and apical part of vesica distinctly elongate (Figs. 10C, 24L).
Description. Body ovoid in both sexes, declivous at cuneal fracture (Figs. 9E, 23J), not sexually dimorphic in coloration and external structures; basic coloration dark brown (Fig. 9 D−E); dorsal surface weakly shining, with relatively sparsely distributed, brown, simple setae and silvery, reclining, lanceolate setae (Fig. 23L, 24O). Head fuscous; eye relatively large. Antenna dark brown, except for median part of segment II (base and apical 1/3−2/5 darkened as in Fig. 9D); segment II as long as mesotibia (♂)/ shorter than mesotibia (♀). Labium shiny chocolate brown, its apex reaching but not exceeding apex of metacoxa; segment III and basal half of segment IV yellowish brown. Pronotum, mesoscutum and scutellum shiny fuscous; pleura chocolate brown; metathoracic scent efferent system as in Fig. 23M. Hemelytron shiny dark brown; membrane smoky brown. All coxae and legs chocolate brown; trochanters pale reddish brown; all femora uniformly darkened; basal 2/5−1/2 of each tibia darkened; tibial spines pale reddish brown; all tarsi yellowish brown; pretarsal structure as in Fig. 23O; pulvilli occupying basal half of claw; parempodia hairlike. Abdomen shiny chocolate brown. Male genitalia (Figs. 10 B−C; 24I−L): Ventral apical part of pygophore with distinct mesal keel (Figs. 10B, 24I); phallotheca gradually sharpened towards apex (Fig. 24J); vesica sigmoid, elongate apically, terminated in hook-shape (Figs. 10C, 24K–L). Female genitalia (Figs. 10 H−I; 25G−L): Sclerotized rings thick-rimmed, subtriangular (Figs. 10H, 25K); posterior wall relatively wide (Fig. 25G).
Measurements: See Table 3.
Etymology. Named for Mr. M. Takai who collected and provided valuable specimens herein designated as type series.
Distribution. Japan (Honshu, Kyushu).
Biology. More than a few adults were collected from inflorescence of Malus toringo (Sieb.) Sieb. (Rosaceae) (Takai, pers. obs.).A univoltine life cycle is assumed, based on collection records.However, no additional information is available on their biology.
description: Published as part of Yasunaga, Tomohide, 2022, The plant bug subfamily Phylinae in Japan, with key to genera and descriptions of eight new species (Hemiptera: Heteroptera: Miridae), pp. 1-52 in Zootaxa 5094 (1) on page 22, DOI: 10.11646/zootaxa.5094.1.1, http://zenodo.org/record/5964735