Brevivalvala melanosticta, Dai, Ren-Huai, Qu, Ling & Yang, Mao-Fa, 2016

Dai, Ren-Huai, Qu, Ling & Yang, Mao-Fa, 2016, First record of the tribe Phlepsiini (Hemiptera: Cicadellidae: Deltocephalinae) from China, with description a new genus and species, Zootaxa 4107 (1), pp. 81-84 : 82-83

Brevivalvala melanosticta sp. nov. ( Figs 1–12 )

Body length. (including tegmina): ♂, 6.0–7.0 mm.

Description. Body color. Dark brown with brown and dark brown patches ( Figs 1–5 ). Costal margin of forewing ( Fig. 5 ) with a black spot in distal 1/3. Face ( Fig. 3 ) brown with yellow spots and short transverse band. Vertex with brown median transverse line.

Morphology. Head ( Fig. 1 ) including eyes slightly narrower than pronotum; fore margin ( Figs 1–2, 4 ) slightly produced anteriorly with two transverse striations; crown with midlength approximately 1.5 times as long as next to eyes. Ocelli ( Figs 2–3 ) situated on fore margin of vertex, not visible in dorsal view, its diameter equal to distance between ocellus to adjacent eye. Clypellus ( Fig. 3 ) slightly broad at base, expanding apically; antennal ( Fig. 3 ) bases located near middle of eyes.

Profemur ( Fig. 12 ) IC row with long fine setae; AV row with about 10 stout and short setae; AM1 with only one strong and long seta; fore tibia with dorsal setal formula 1+5. Hind tibia with 11 setae of AV row, 19 setae of AD row, PV row and AV row with numerous setae; first tarsomere with five platellae and second tarsomere with four.

Male genitalia. Male pygofer lobe ( Fig. 6 ) dorsal margin sinuated; caudodorsal part elongated, distal half with numerous long macrosetae. Valve ( Fig. 7 ) short, bandlike, anterior margin sinuated. Subgenital plate ( Fig. 7 ) broad at basal 1/4, then gradually tapered to elongate subacute apex and fingerlike. Style ( Fig. 8 ) with lateral corner of base elongated; concave at middle of outer edge with several fine, short setae. Connective ( Fig. 11 ) Y-shaped, stem short. Aedeagal shaft ( Figs. 9, 10 ) compressed and tapered about from at basal 1/4 to apical 3/ 4 in lateral view with pair of ventral spines arising on apical 1/5 and extended distad, not exceeding apex of shaft; dorsal apodeme elongated; gonopore apical on ventral surface of shaft.

Female. Unknown.

Material examined. Holotype, ♂, CHINA: Yunnan Province, Tongbiguan Provincial Natural Reserve, 3-VI-2011, coll. Li Yujian; Paratypes, 2 ♂♂, Yunnan Province, Gaoligong National Natural Reserve, Baihualing, 13-VI-2012, coll. Long Jiankun ( GUGC).

Distribution. China (Yunnan Province).

Etymology. The new species name is an adjective derived from a composite of the Greek words “melano” (black) and “sticto” (spotted), indicating that the costal margin of forewing ( Fig. 5 ) with a black spot at distal 1/3.

Figures

FIGURES 1 – 5. Brevivalvala melanosticta sp. nov. 1. ♂, dorsal view; 2. ♂, lateral view; 3. ♂, face; 4. ♂, head in anterior view; 5. Forewing.

FIGURES 6 – 12. Brevivalvala melanosticta sp. nov. 6. Male pygofer side, lateral view; 7. Valve and subgenital plate, ventral view; 8. Style, dorsal view; 9. Aedeagus, ventral view; 10. Aedeagus, lateral view; 11. Connective, dorsal view; 12. Profemur and protibial, anterior view.