Bambusimukaria quinquepunctata sp. n., here designated.

Crown with anterior and submarginal carinae; entire second segment of antenna visible from above. Frontoclypeus transversely impressed across base beneath prominent overhanging anterior edge of head. Forewing with four apical cells, venation obscure except near apex, vein M₃₊₄ originating from junction of inner and central anteapical cell. Hind wing with four closed apical cells. Ventral margin of male pygofer without process. Style with short articulating arm and broad outer basal arm. Connective Y-shaped, fused with aedeagus. Aedeagus with paired stout shafts diverging from base, gonopores subapical, large; basal apodeme short.

Head and thorax. Crown (Figs 4, 7) shorter than pronotum, subconically anteriorly rounded, more than half as long as breadth between eyes, with anterior and submarginal carinae, posterior end of anterior carina strongly incurved before eyes; disk strongly sloping posteriorly, texture smooth; ocelli on crown, distant from eyes and close to anterior margin; entire second segment of antenna visible from above; eyes long, oblique, extending backward over anterior angles of pronotum; face (Fig. 5) including eyes as long as broad, frontoclypeus transversely impressed across base beneath prominent overhanging anterior edge of head, narrowed towards clypeus; clypellus narrowing apically; lorum broad. Pronotum (Figs 4, 7) elevated centrally, arched, anterior margin convexly rounded between eyes, posterior margin slightly concave, lateral margin short. Scutellum (Figs 4, 7) large, broad, basal margin longer than lateral margin, transverse depression slightly curving. Forewing (Figs 1–3, 9) elongate, considerably longer than abdomen, slightly widened posteriorly, with four apical cells, venation obscure except near apex, vein M₃₊₄ originating from junction of inner and central anteapical cell; appendix well developed. Hind wing (Fig. 10) with four closed apical cells. Profemur (Fig. 11) with 2 dorsoapical setae, row AM with 1 stout seta, and row AV with several fine setae. Protibia (Fig. 11) with 4 macrosetae in row AD and with 13 macrosetae approximately equal in length in row AV. Hind femur broadened distally and slightly bowed; apical setal formula 2+2+1. Hind tibia flattened and nearly straight, with PD setae very long, alternating in length and with 1 smaller setae between macrosetae; row AD with 14 macrosetae interspersed by 1 to 2 small stout setae; several supernumeral setae present between AD and AV rows. Metabasitarsomere with 3 platellae and 2 setae on apical transverse row, and one row of 6 stout setae at middle and one row of 4 stout setae at lateral margin.

Male genitalia. Male pygofer (Figs 15, 16) rather dorso-ventrally depressed, with macrosetae caudally; ventral margin without process. Valve (Fig. 19) broad, subtriangular. Subgenital plate (Fig. 19) very short, broad basally, with group of moderately long fine setae laterobasally and few short fine setae apically. Style (Fig. 20) with short articulating arm and broad outer basal arm. Connective (Fig. 21) Y-shaped, fused with aedeagus. Aedeagus (Figs 21–23) with paired stout shafts diverging from base, gonopores subapical, large; basal apodeme short, thumb-like in lateral view.

Female genitalia. Sternite VII (Fig. 12) with hind margin broadly concave. Pygofer with numerous macrosetae. Ovipositor protruding slightly beyond pygofer apex. First valvula (Fig. 13a, b) weakly curved; dorsal sculpturing pattern strigate, reaching dorsal margin; without distinctly delimited ventroapical sculpturing. Second valvula (Fig. 14a, b) broad, widest near mid-length, thereafter gradually tapered to acute apex; with broad dorsal sclerotized area, thereafter dorsal margin with numerous fine regular teeth after dorsal prominences.

Bamboo (Figs 24–27).

Figures 24–27. 

Host plant of Bambusimukaria quinquepunctata sp. n. 24 View of the area where the types of B. quinquepunctata were captured, in Guiyang Forest Park (Guizhou, China) with Phyllostachys bambusoides f. lacrimadeae Keng & Wen 25 View of the plant 26 B. quinquepunctata resting on a leaf of P. bambusoides f. lacrimadeae, dorsal view (Guiyang Forest Park, Guizhou) 27 same, lateral view. (11 Aug 2006, photography by X.-S. Chen)

Southwest and south China.

The genus name, which is feminine, is a combination of “bambus” (bamboo) and “Mukaria” (name of the type genus of Mukariini), meaning that members of this genus feeding exclusively on bamboo (Bambusoideae).

The new genus can be distinguished from other genera of Mukariini by the very large anal tube process (see also above key to genera of Mukariini). Among other Chinese mukariin genera, the new genus is somewhat similar to Flatfronta Chen & Li, 1997 and Tiaobeinia Chen & Li, 2008 in the shape of head, and also similar to Mukaria Distant, 1908 in the shape of male genitalia. See also Table 1 for further comparisons.

Holotype: ♂, China: Forest Park (26°35'N, 106°42') (1100 m), Guiyang, Guizhou, on bamboo (P. bambusoides), 11 Aug. 2006, X.-S. Chen and L. Yang; paratypes: 4♂♂, 7♀♀, data same as holotype; 1♀, Dongtang (25°24'N, 107°52'), Maolan, Libo, Guizhou, on bamboo, 24 May 1998, X.-S. Chen; 10♀♀, Dayi (25°21'N, 106°06'), Wangmo, Guizhou, on bamboo (P. bambusoides), 28 July 1998, X.-S. Chen; 25♂♂, 6♀♀, Forest Park, Guiyang, Guizhou, on bamboo, 11 July 2006, Q.-Z. Song; 1♀, Weiyuan (26°01'N, 106°31'), Changshun, Guizhou, on bamboo, 11 July 2007, X.-S. Chen; 6♀♀, Daxianfeng (26°55'N, 116°59'), Datian, Sanming, Fujian, on bamboo, 14 May 2011, Z.-M. Chang and J.-K. Long; 5♀♀, Tianyanbao (26°39'N, 118°53'), Yongan, Fujian, on bamboo, 17 May 2011, Z.-M. Chang and W.-C. Yang. All types are deposited in IEGU except two males and two females deposited in BMNH where indicated.

General color yellowish white to yellowish orange. Head and thorax with five black markings. Female sternite VII with two blackish brown markings. Anal (Xth) segment with a very large process at apical-ventral margin. Aedeagus with shafts diverging from base, each shaft narrower at base, broad to near apex, outer margin extended apically into a stout acute process inner margin with a stout subapical tooth-like process directed medially, dentate on dorsal suface, gonopores subapical on ventral surface.

Measurements. Body length including forewing: male 5.30–5.40 mm (n = 30), female 5.50–5.60 mm (n = 36).

Coloration. General color yellowish white to yellowish orange (Figs 1–6, 26, 27). Eyes yellowish brown. Head and thorax (Figs 4, 7) with five black markings, one at apex of crown, two on anterior margin of pronotum and two on anterior margin of mesonotum. Fore tibia with one dark brown mark subapically. Female sternite VII with two blackish brown markings (Fig. 12).

Head and thorax. Crown (Figs 4, 7) with median length shorter than width between eyes (0.62:1). Face including eyes (Fig. 5) slightly shorter in middle line than broad at widest part (0.81:1). Pronotum (Figs 4, 7) wider than head including eyes (1.17:1), longer than vertex in middle line (1.48:1). Scutellum (Figs 4, 7) as long as pronotum in middle. Forewing (Fig. 9) 3.4 times longer in middle line than widest part. Hindwing (Fig. 10) 2.13 times longer in middle than widest part.

Male genitalia. Anal (Xth) segment (Figs 15–18) with a very large process at apical-ventral margin, directed cephalad, tapering distally to acute apex. Pygofer (Figs 15, 16) broad and rounded in lateral view, with many macrosetae. Valve (Fig. 19) with basal width 2 times longer than median length, posterior margin rounded. Subgenital plate (Fig. 19) very short, broad at base, tapering to acutely rounded apex. Style apophysis (Fig. 20) thumb-like, slightly sinuate, apex rounded. Connective stem (Figs 21, 22) slightly shorter than arms, fused with base of aedeagus. Aedeagus (Figs 21–23) in ventral view with shafts diverging from base, each shaft narrower at base, broad to near apex, outer margin extended apically into a stout acute process inner margin with a stout subapical tooth-like process directed medially, dentate on dorsal suface, gonopores subapical on ventral surface.

Female genitalia. Sternite VII (Fig. 12) with anterior margin angularly produced laterally, posterior margin strongly and broadly concaved. First and second valvulae (Fig. 13a, b) as in generic description; second valvulae (Fig. 14a, b) bearing approximately 36 fine teeth on apical half behind dorsal prominence and basal curvature.

Bamboo (Phyllostachys bambusoides f. lacrimadeae Keng et Wen) (Figs 24–27).

Southwest and south China (Guizhou, Fujian).

The name is a combination of the Latin words “quinque” (five) and “punctata” (spots), which refers to the dorsum of head and thorax with five small dark spots.

The new species can be distinguished from other species of Mukariini by the very large anal tube process.