Thailocyba boa

Song, Yuehua & Li, Zizhong, 2010, A new Thailocyba Mahmood (Hemiptera: Cicadellidae: Typhlocybinae) species from China, with a key to species of the genus, Zootaxa 2502, pp. 61-64 : 62-64

Thailocyba boa Song & Li sp. nov.

( Figs. 1 – 9 )

Vertex ( Fig. 1 ) brownish yellow, anterior region dark reddish brown; anterior margin strongly produced and angulate medially, its median length little longer than width between eyes; coronal suture obvious. Eyes black. Pronotum ( Fig. 1 ) broad, but little short in length, anterior area light; posterior area dark, approximately brownish red. Scutellum ( Fig. 1 ) brownish yellow; basal triangles brownish red; transverse impression short but straight. Forewing ( Fig. 2 ) with clavus and apical part dark; fore margin and hind margin of brochosome field also dark; 3rd apical cell with an oval dark spot.

Abdominal apodemes ( Fig. 3 ) long and broad, extending to posterior margin of 5th sternite.

Male genitalia: Pygofer lobe ( Fig. 4 ) with hind margin divided into two lobes, caudo-dorsal lobe sclerotized strongly, very dark, caudo-ventral lobe with several long rigid macrosetae. Subgenital plate ( Fig. 5 ) long and slender, with few lobes at apex, and with a macrosetae at sub-base and sub-apex respectively. Style ( Fig. 6 ) bent laterad apically, with row of fine setae and some sensory pits at sub-apex. Aedeagus ( Figs. 7, 8 ) with pair of long basal processes, curved dorsad slightly, not helical. Aedeagal shaft ( Fig. 8 ) long and slim, gonopore apical, ventrad. Connective ( Fig. 9 ) Yshaped, stem as long as arms, central lobe compressed, with weak median ridge.

Specimen examined: Holotype: male, Mengla County, Yunnan Province, China, 17 July 2008, coll. Yong Chen. Paratypes: one male, same data as holotype; one male, Banna National Nature Reserve, Mengla County, 19 July 2008, coll. Xiaohong Jiang.

Measurement: Body length males 2.7~2.8 mm.

Remarks: The new species can be distinguished from other species of the genus by its unique aedeagal basal processes, which are curved dorsad slightly, not helical.

Etymology: The specific name is derived from the Latin word “ boa ” (lusty, robust), referring to the basal processes of aedeagal shaft very large and strong.

Figures

FIGURES 1 – 9. Thailocyba boa sp. nov. 1. Head and thorax, dorsal view. 2. Forewing. 3. Abdominal apodemes. 4. Pygofer lobe, lateral view. 5. Subgenital plate. 6. Style. 7. Aedeagus, ventral view. 8. Aedeagus, lateral view. 9. Connective.