Cleotomiroides vietnamensis Duwal & Yasunaga

Duwal, Ram Keshari, Yasunaga, Tomohide, Tomokuni, Masaaki, Nakatani, Yukinobu & Hirowatari, Toshiya, 2017, Further records on the plant bug tribe Hallodapini (Hemiptera: Heteroptera: Miridae: Phylinae) in Asia, with proposition of two new species and a new synonymy, Zootaxa 4258 (5), pp. 401-424 : 409-413

Cleotomiroides vietnamensis Duwal & Yasunaga sp. nov.

( Figs. 4 ḠI, 6C, 9, 16B̄C)

Diagnosis. Recognized by its larger sized body; yellowish brown hemelytron with apically smoky corium; distinct white fascia anteriorly on the hemelytron; pale or white areas on clavus and corium; pale appendages; and form of male genital structures.

The new species is distinguished from congeners by the distinct coloration of dorsum and the form of male genital structures. It has a Cleotomiroides- type endosoma as described in Schuh, 1984, which is very close to C. spadix , but can be easily distinguished by presence of prominent spines on inner lateral side of apex of endosoma, and relatively wide proximal region of the apical process; and a distinct sub-apical protuberance (or spine) on the phallotheca.

Description. Male. COLORATION ( Fig. 4 ḠI): Dorsum yellowish brown; head uniformly pale yellow to yellowish brown including clypeus, mandibular plate, maxillary plates, and/ or entire ventral side of the head; antennal segments ĪII pale yellow, segment III brownish, and segment IV darker (in some specimens tinged red); labium brown except for pale yellow segment III; pronotum dark brown to blackish brown, anterior pronotum blackish, and basal margin and lateral corners of posterior pronotum pale; scutellum resembles coloration with posterior pronotum i.e., dark brown to blackish brown, with black margins; thoracic pleura dark brown to black with pale edge; scent gland evaporatory area brown to dark brown anteriorly and white or ivory posteriorly ( Fig. 4 H); procoxa yellowish brown (red tinged in some specimen), meso- and metacoxae entirely pale; all trochanters whitish; all femora, tibiae and tarsus pale, with hind femur, meso- and metatibiae tinged red; hemelytron yellowish brown with darker base and apical 1/3 region; base of clavus blackish brown, followed by a white transverse fascia at level of apex of scutellum, and extended laterally to costal margin; subapical region of costa with large, more or less rounded, white spot; narrow region of posterior corium between white spot and cuneus, and lateral margins of cuneus smoky brown; membrane smoky brown, with white base, and basal margin distinctly dark brown; abdomen ventrally dark brown or blackish with pale basal segments, ĪIV. SURFACE AND VESTITURE: Head, pronotum and scutellum shiny; head and posterior pronotum smooth; anterior pronotum and scutellum rugose; hemelytron weakly shiny and shagreen. Head, pronotum, scutellum and cuneus with semierect simple pale setae; hemelytron and scutellum with erect long pale setae except for apical narrow region of corium, region behind posterior white spot of corium covered with semierect dark setae; antenna and legs with short semierect pale simple setae; and tibial spine pale, arranged in single row on hind tibia. STRUCTURE: Macropterous, body elongated. Head: Vertex weakly convex, with distinctly carinate basal margin; width between eyes narrow, shorter than length of antennal segment I; frons flat; eyes large, occupying almost entire height of head in lateral view; antennal fossae located above ventral margin of eye; antennal segments slender, with weakly thickened segment I, and length of segment II equal to width of basal pronotum. Thorax: Pronotum trapezoidal, with concave lateral margins; pronotal collar flat, narrow, shorter than width of base of antennal segment II; calli not demarcated; mesoscutum completely covered with pronotum; scent gland evaporatory area broadly triangular with distinctly elevated peritreme. Hemelytron: Width of hemelytron wide anterior to cuneal fracture; costal margin concave; cuneal fracture weakly incised, short and perpendicular to costal margin; basal width of cuneus nearly equal to length of the cuneus; larger cell of membrane angulated apically. Legs: Femora long and slender, hind femur somewhat thick apically; hind tibia weakly curved; tarsal segments I and II sub-equal in length, and segment III distinctly longer; pulvillus attached along claw, reaching midpoint of claw, parampodia weakly fleshy, and apically convergent. GENITALIA ( Figs. 6 C, 9): Pygophore with a stout, relatively short spine sub-apically ( Fig. 9 A). Right paramere broad sub-apically, and narrow apically to form thumb-like apical process ( Fig. 9 E). Left paramere simple with elongated anterior and posterior processes, the anterior process tapered towards apex and posterior process somewhat broad sub-apically ( Fig. 9 C̄D). Phallotheca broad basally and narrow apically, and furnished with a horn-like process sub-apically ( Fig. 7 B). Endosoma, phyline type with complex apex and elongated apical process, the inner-lateral margin of apex with five spines, four large forming serrated surface, and one located slightly separate in distance and minute ( Figs. 6 C, 9F).

Female: The female resembles the male in color and vestiture, except for following characters: Body size slightly smaller in length; head width across eyes smaller; eyes small; vertex distinctly wide; antennal segment II relatively short; mesal length of pronotum short; width across hemelytron slightly wider. GENITALIA ( Fig. 16 B̄C): Sclerotized ring elongated, thin rimmed, with wide base and narrow apex ( Fig. 16 C). Anterior and vestibular sclerites of first gonophysis as in figure 16B.

Measurements. (♂ / ♀) (n= 5/5). Body length 3.15̄3.35/ 2.98̄3.30; length from apex of tylus to cuneal fracture 2.26̄2.30/ 2.19̄2.26; width of head across eyes 0.61̄0.62/ 0.54̄0.59; width of vertex 0.19̄0.20/ 0.29̄0.30; lengths of antennal segments ĪIV 0.25̄0.30, 0.90̄0.95, 0.55̄0.60, 0.36̄0.38/ 0.26̄0.28, 0.82̄0.90, 0.49̄0.54, 0.39̄0.40; length of labium 1.18̄1.21/ 1.15̄1.20; mesal length of pronotum 0.65̄0.68/ 0.55̄0.59; basal width of pronotum 0.90̄0.92/ 0.85̄0.90; width across hemelytron 0.94̄1.01/ 1.00̄1.08; length of metafemora, tibiae and tarsus 1.10̄1.20, 1.45̄1.50, 0.25̄0.29/ 1.05̄1.15, 1.45̄1.50, 0.25̄0.28.

Etymology. Named after the country “ Vietnam ”, type locality of this new species.

Specimens examined. Holotype . ♂, VIETNAM, Vinh Phu Province , Tam Dao, 21.4, 105.5, 950 m, 24.ix.1995, M. Tomokuni ( NSMT) ( AMNH PBI 00380516 ). Paratypes . Same data as for holotype, except, 950̄ 1,050 m, 25̄ 26.ix.1995 ( NSMT) ; 1♂, 1♀, same location as above, 17.vi.1997, M. Tomokuni ( NSMT) ; 3♂, 2♀, same location as above, 2̄ 13.vii.1997, M. Tomokuni ( NSMT) .

Figures

FIGURE 4. Habitus images of Cleotomiris inthanon (A ̅ C); C. schneirlai (D ̅ F); Cleotomiroides vietnamensis (G ̅ I). Dorsal view (A, D, G); Lateral view (B, E, H); Metathoracic scent-efferent system (C, F, I). Scale bars: 0.5 mm.

FIGURE 6. Illustrations of endosoma of Cleotomiris inthanon (A); C. schneirlai (B); Cleotomiroides vietnamensis (C); Wygomiris taipokau (D). Scale bars: 0.2 mm.

FIGURE 7. Male genital structures of Cleotomiris inthanon. Pygophore (A); Phallotheca (B); Right paramere (C); Left paramere (D ̅ F); Endosoma (G ̅ H). Scale bars: 0.2 mm.

FIGURE 9. Male genital structures of Cleotomiroides vietnamensis. Pygophore (A); Phallotheca (B); Left paramere (C ̅ D); Right paramere (E); Endosoma (F). Scale bars: 0.2 mm.

FIGURE 16. Female genital structures: Cleotomiris schneirlai (A); Cleotomiroides vietnamensis (B ̅ C); Wygomiris taipokau (D ̅ F); W. kaliyahae (G ̅ I). Anterior wall including gonopophysis (A ̅ D, G ̅ H); Posterior wall (E ̅ F, I). As = anterior sclerite of first gonapophysis; Vg = vestibular sclerite of first gonapophysis; SR = sclerotized rings; PS = Posterior sclerite. Scale bars: 0. 2 mm.