Pediopsoides (Glaphyropsis) aurantescens, Okudera & Hayashi, 2024

Okudera, Shigeru & Hayashi, Masami, 2024, Two new species of the macropsine leafhoppers (Hemiptera: Cicadellidae: Eurymelinae) from Japan, with description of a new subgenus, Zootaxa 5418 (2), pp. 172-182 : 176-178

Pediopsoides (Glaphyropsis) aurantescens sp. nov.

( Figs. 3–4 , 8–10 , 12 , 25–37 )

General coloration pale ochraceous, slightly darker in males. Head and pronotum pale ochraceous without any markings; ocelli brownish. Mesonotum slightly tinged with orange. Forewing subhyaline and pale ochraceous with posterior margin slightly fuscous; veins and cells concolorous. Leg pale ochraceous; tip of tarsus infuscate; bases of macrosetae on hind tibiae blackish. Ventral part of abdomen pale ochraceous.

Head slightly narrower than pronotum; face across eyes wider than length, with transverse striae. Pronotum ca. 2.0 times as wide as long in median line, with transverse striae. Mesonotum slightly longer than pronotum. Hind femoral macrosetae 2 + 1, hind tibial with 9 macrosetae on AD row, 5 on AV row, 12 on PD row, dense and slender on PV row. Male 2nd tergal apodeme short, wide and rounded; sternal apodeme slender and triangular. Female 7th abdominal sternite triangular, with caudal apex slightly notched; female pygofer slender; 2nd left valvula (ovipositor) with three apical teeth and a preapical tooth; 3rd valvulae extending far beyond pygofer in ventral view.

Body length (mean): ♂ 3.5–3.8 mm (3.6 mm), ♀ 3.8–4.3 mm (4.1 mm).

Male genitalia. Pygofer lobe elongate with three to four short inner spines near ventral margin. Subgenital plate slender with short hairs on almost entire surface. Style slender, nearly 0.7 times as long as subgenital plate, with preapical lobe bearing uniseriate short setae along dorsal margin, and with apophysis hooked dorsad. Process of dorsal connective bifurcated on caudal tip, ventral branch about three times as long as ventral one. Aedeagus slender with stout dorsal apodeme; shaft slender and straight, with a pair of small apical processes; gonopore situated apical or slightly ventral from tip. Tenth segment longer than pygofer lobe.

Type series. Holotype ♂ ( RUMF), Mitara , Iriomote Is., Ryukyus, Japan. 17. III. 2006, M. Hayashi leg. Paratypes: [Ishigaki Is.] 1♀, Mt. Maese-dake , 3. IV. 1996 , M. Hayashi; 1♂ 1♀, 21. II. 2006, S. Okudera & N. Ohara; 47♂ 47♀, 13. II. 2011, M. Hayashi & S. Okudera; 9♂ 22♀, 10. III. 2011, M. Hayashi; 1♂, Mt. Omoto-dake , 9. IV. 1992 , M. Hayashi; 6♂ 9♀, 26. I. 1993, M. Hiratate; 14♂ 28♀, 23. II. 2010, M. Hayashi et al.; 10♂ 17♀, 12. II. 2011, M. Hayashi & S. Okudera; 1♀, 30. I. 2019, M. Hayashi; Omoto For. Rd. , 1♂ 9♀, 23. II. 2010 , M. Hayashi et al.; 36♂ 33♀, 13. II. 2011, M. Hayashi & S. Okudera; 1♂, Shiramizu , 28. I. 1993 , M. Hiratate; 3♀, 21. II. 2006, S. Okudera & N. Ohara; 2♂ 2♀, Takeda For. Rd. , 29. I. 2019 , M. Hayashi; 1♂ 2♀, Mt. Yarabu-dake , 18. II. 2008 , M. Hayashi et al.; 3♂ 11♀, 11. III. 2011, M. Hayashi; 2♀, 11. III. 2023, M. Hayashi; 3♂ 3♀, Itona , 18. II. 2008 , M. Hayashi et al. [Iriomote Is.] 1♀, Ôtomi , 18. III. 2006 , M. Hayashi; 1♀, Komi , 17. II. 2006 , S. Okudera & N. Ohara; 2♀, Funaura , 8. III. 2023 , M. Hayashi; 1♂ 1♀, Hoshidate , 8. III. 1964 , S. Higashihirachi; 7♂ 8♀, Mt. Sonai-dake , 8. III. 2011 , M. Hayashi; 12♂ 7♀, 8. III. 2023, M. Hayashi; 6♂ 10♀, same data as holotype; 15♂ 17♀, same data except 9. III. 2011 . Paratypes are deposited in ELKU, RUMF and HUEA .

Distribution. Japan (Ryukyus: Ishigaki Is. and Iriomote Is.).

Etymology. The name of this species is derived from its orange-yellow body color.

Biological note. The host plant of this new species is exclusively Meliosma oldhamii Miq. of Sabiaceae . Adults were collected from January to early April, with peak period in February to early March, when leaves of the deciduous host plant are developing. The appearance season of this leafhopper is winter to early spring, just before the ‘Urizun’ climate in Okinawa.

Remarks. This species resembles Pediopsoides (Glaphyropsis) montaninversa (Yang & Zhang) comb. nov. and P. (G.) trifurcate (Li, Dai & Li) comb. nov. in the shape of the aedeagus and dorsal connective. However, this new species is distinguishable from P. (G.) montaninversa by the slender aedeagus with a tiny apical process, and the pale ochraceous body color. Furthermore, P. (G.) aurantescens differs from P. (G.) trifurcata in the pale ochraceous coloration of the body, presence of an apical process on the aedeagal shaft, and absence of serration on the dorsal connective process.

Figures

FIGURES 1–4. Habitus.—1–2, Celopsis yaeyamana sp. nov.; 3–4, Pediopsoides (Glaphyropsis) aurantescens subgen. & sp. nov. Dorsal (1, 3) and lateral (2, 4) habitus of male.

FIGURES 5–10. Scanning electron microscope images of head and thorax.—5–7, Celopsis yaeyamana sp. nov.; 8–10, Pediopsoides (Glaphyropsis) aurantescens subgen. & sp. nov. Dorsal (5, 8), facial (6, 9) and lateral (7, 10) aspects of male.

FIGURES 11–12. Male forewings.—11, Celopsis yaeyamana sp. nov.; 12, Pediopsoides (Glaphyropsis) aurantescens subgen. & sp. nov.

FIGURES 25–28. Pediopsoides (Glaphyropsis) aurantescens subgen. & sp. nov. —25, ♂ apodemes of abdominal segment; 26–28, ♂ pygofer in lateral (26), caudal (27) and dorsal (28) views.

FIGURES 29–37. Pediopsoides (Glaphyropsis) aurantescens subgen. & sp. nov.—29, ♀ terminalia in ventral view; 30, apical part of left 2nd valvula; 31, ♂ apodemes of 2nd abdominal segment; 32, ♂ pygofer in lateral view; 33, left inner pygofer process; 34, left style; 35, Tenth segment and dorsal connective; 36–37, aedeagus in lateral (36) and caudal (37) views. Scales; 0.3 mm (29, 31), 0.1 mm (30, 33–37), 0.2 mm (32).