Yangisunda apicibicruris, Zhang, Yalin, Gao, Xia & Huang, Min, 2011

Zhang, Yalin, Gao, Xia & Huang, Min, 2011, Two new species of Yangisunda Zhang (Hemiptera: Cicadellidae: Typhlocybinae: Zyginellini) from China, with a key to species, Zootaxa 3097, pp. 45-52 : 46-49

Yangisunda apicibicruris sp. nov.

Figs 1–3 , 7–14

Description. Body yellowish-brown, eyes black, vertex, pronotum, scutum and scutellum yellowish-brown ( Figs. 1, 2 ). Face yellowish ( Fig. 3 ). Forewing semitransparent, yellowish, hind margin of brochosome field with oblique brown stripe, apical margin broadly bordered with brown area, third apical cell long and narrow, spot in it is more bigger than in Y. bisbifudusa sp. nov. ( Figs. 1, 2 ).

Abdominal apodemes reaching posterior margin of fifth sternite ( Fig. 7 ).

Male pygofer with fingerlike process dorsally, extended caudad; caudal margin also with small fingerlike process, lateral margin of pygofer with numerous slim microsetae and three long macrosetae ( Fig. 10 ). Subgenital plates with one macroseta in basal part, apical part curved gradually dorsad, with two short lobes, one is swordlike, bearing few microsetae; other one cylindrical, apex slightly expanded ( Figs. 9, 10, 12 ). Paramere ( Fig. 11 ) and connective ( Fig. 8 ) as described for genus. Aedeagus with developed dorsoatrium, shaft processes with two branches near medially, inner branch about 2x shorter than outer one; gonopore apical ( Figs. 13, 14 ).

Body length. ♀2.70–2.80 mm (including wing).

Material examined. Holotype, 13, China: Yunnan Prov., Sanchahe, 7 June 1999, coll. Tian Rungang. Paratype, 13, same data as holotype.

Distribution. China (Yunnan)

Remarks. The new species resembles Y. tiani , but differs as follows: dorsal fingerlike process of pygofer directed caudad ( Fig. 10 )—directed dorsocaudad in Y. tiani (Fig. 36); lateral margin of pygofer with some slim microsetae and three long macrosetae ( Fig. 10 )—absent in Y. tiani (Fig. 36); aedeagal shaft processes branch medially and inner branch about 2x shorter than the outer one ( Figs. 13, 14 )—branch near base and equal in length in Y. tiani (Figs. 37, 38).

Etymology. The specific epithet is derived from the Latin prefix “ apic -” which means apical, and the Latin word “ bicruris ” meaning divided into two branches, referring to aedeagus shaft with an apical process that divides into two branches apically.

Figures

FIGURES 1 – 3 Yangisunda apicibicruris sp. nov. 1. dorsal habitus; 2. lateral habitus; 3. face. FIGURES 4 – 6 Yangisunda bisbifudusa sp. nov. 4. dorsal habitus; 5. lateral habitus; 6. face.

FIGURES 7 – 14 Yangisunda apicibicruris sp. nov. 7. Abdominal apodeme; 8. Connective; 9. Paramere, connective, subgenital plate, dorsal view; 10. Male pygofer, lateral view; 11. Paramere; 12. Subgenital plate; 13. Penis, lateral view; 14. Penis, posterior view.