Kabakra chaiyaphuma, Song, Yue-Hua, Li, Zi-Zhong & Dietrich, Christopher H., 2016

Song, Yue-Hua, Li, Zi-Zhong & Dietrich, Christopher H., 2016, Two new species of the genus Kabakra Dworakowska from Thailand (Hemiptera: Cicadellidae: Typhlocybinae), Zootaxa 4092 (1), pp. 145-150 : 146

Kabakra chaiyaphuma sp. nov.

( Figs 1–5 , 11–21 )

Description. Vertex milky yellow in anterior part and brownish yellow in posterior part, with two black apical spots, midline reddish; coronal suture hardly visible ( Figs 1, 3 ). Face narrow, with anteclypeus almost black, frontoclypeus central part brownish yellow, sides and lower part dark brown ( Figs 2, 4 ). Pronotum whitish yellow near fore margin, central area and hind margin brownish yellow, with two obvious dark spots medially ( Figs 1, 3 ). Mesonotum whitish yellow, basal triangles brownish black, small irregular dark spot situated adjacent to tip of basal triangles and sides of scutellum; tip of scutellum slightly darkened ( Figs 1, 3 ). Forewing with bright markings as in Fig. 5 , near basal part reddish, orange or brownish yellow, apical part smoky brown; brochosome field orange ( Fig. 5 ).

Forewing with AA vein ( Fig. 11 ). Hindwing with RA vein ( Fig. 12 ).

Male abdominal apodemes extended to fourth sternite ( Fig. 13 ).

Pygofer side narrowing towards apex, with four long macrosetae at dorso-caudal margin ( Fig. 14 ). Pygofer dorsal appendage long and tapered, extended to or beyond apex of pygofer lobe ( Fig. 14 ). Subgenital plate broad basally, with distinct constriction near midlength and broadly rounded apically, with macrosetae at constricted part of plate ( Figs 13, 14 ). Style apophysis elongate, strongly curved laterad and evenly tapered towards apex ( Figs 16, 18 ). Connective with lateral arms long and slender, central lobe well-sclerotized, long ( Figs 17, 18 ). Aedeagus without preatrium, shaft extremely long, slender and flattened dorsoventrally, band-like, with 3 short terminal branches extended distad ( Figs 19– 21 ), gonopore subapical on ventral surface; dorsal apodeme column-like in lateral view, apex bifurcate in posterior view ( Figs 19, 20 ).

Measurement. Male length 2.2–2.3 mm.

Specimen examined. Holotype: ♂, THAILAND Chaiyaphum, Tat Tone NP Entrance/Pha Eang waterfall, 15º57.52'N 101º54.44'E, 297 m, Litter sample, 19-22.iv.2007, coll. Tawit Jaruphan. Paratypes: 11♂♂, same data as holotype; 4♂♂, THAILAND Sakon Nakhon, Phu Phan NP, Dry evergreen near house no.1567, 16º48.627'N 103º53.511'E, 512 m, Malaise trap, 4-10.vi.2007, coll. Winlon Kongnara; 6♂♂, THAILAND Chaiyaphum, Tat Tone NP Dry Dipterocarp Forest, 15º59.037'N 102º2.103'E, 250 m, Malaise trap, 21-28.vi.2006, coll. Lumyai Ittichan; 12♂♂, THAILAND Sakon Nakhon, Phu Pha Yon NP Reservoir, 16º55.655'N 104º10.658'E, 280 m, Malaise trap, 11-29.vii.2006, coll. Manop Ngoyjansri & Chatree Cheaukamjan.

Diagnosis. This species is similar to Kabakra acutata Cao, Huang & Zhang (2012) in the shape of the style but can be distinguished by the extremely long aedeagal shaft with three branches apically, the long well sclerotized middle part of central lobe of the connective and the long, tapered pygofer dorsal appendage. The distinct dorsoapical pair of round black spots on the crown is unique within the genus and gives this species a superficial resemblance to Arboridia Zachvatkin and some related genera but the structure and chaetotaxy of the pygofer clearly indicate that the species is appropriately placed in Kabakra (see Discussion below).

Etymology. The specific name refers to the province where the holotype was collected.

Figures

FIGURES 1 – 10. 1 – 5, Kabakra chaiyaphuma sp. nov., 6 – 10, Kabakra sakona sp. nov.; 1, 6, Habitus, dorsal view; 2, 7, Habitus, lateral view; 3, 8, Head and thorax, dorsal view; 4, 9, Face; 5, 10, forewing.

FIGURES 11 – 21. Kabakra chaiyaphuma sp. nov.: 11, Venation of forewing; 12, Hind wing; 13, Abdominal apodemes; 14, Genital capsule; 15, Subgenital plate; 16, Style; 17, Connective; 18, Subgenital plate, Style, Connective and the 9 th sternite; 19, Aedeagus, lateral view; 20, Aedeagus, ventral view; 21, Apical part of aedeagal shaft, ventral view.