Paralaevicephalus angustus, Xing, Jichun, Dai, Renhuai & Li, Zizhong, 2009

Xing, Jichun, Dai, Renhuai & Li, Zizhong, 2009, A taxonomic study of the genus Paralaevicephalus Ishihara (Hemiptera: Cicadellidae: Deltocephalinae), with description of four new species from China, Zootaxa 1979, pp. 53-61 : 58-59

Paralaevicephalus angustus sp. nov.

Figs. 24–29

Description. General appearance as in Paralaevicephalus huaxiensis sp. nov., but color light yellow, vertex with two black maculae.

Male genitalia: Subgenital plate short, outer and apical margins rounded, macrosetae irregularly arranged towards apex; elongate stout process arising basally from inner margin, strongly curved dorsad at apex ( Fig. 26 ). Style short, apical process not exceeding apical margin of subgenital plate, base narrow. ( Fig. 26 ). Connective with arms forked, Y-shaped, with stem nearly 1/3 length of arms. ( Fig. 29 ). Aedeagus with shaft elongate and slender, curved dorsad, with dorsal apodeme, gonopore apical on ventral surface ( Figs. 27, 28 ).

Measurement. Length (including tegmen): 3, 2.8–3.0 mm; Ƥ, 3.0–3.1 mm.

Host. Weeds.

Type Material. Holotype 3, China: Guizhou Prov., Ziyun County, Kazha, 28 July 2008, coll. Jichun Xing ( IEGU). Paratypes: 2Ƥ, same data as holotype; 23, Guizhou Prov., Ziyun County, Baishiyan, 2 October 2008, coll. Jichun Xing ( IEGU).

Diagnosis. This species is similar to Paralaevicephalus gracilipenis Dai, Zhang et Hu , but the connective is Y-shaped. It also differs from Paralaevicephalus huaxiensis sp. nov. in having the stem of the connective much more elongate and the base of the style much narrower.

Etymology. The species name is derived from the Latin words angustus , indicating the base of the style is much narrower than in other species.

Figures

FIGURES 24 – 29 Paralaevicephalus angustus sp. nov. 24. Male pygofer side, lateral view; 25. Valve, ventral view; 26. Subgenital plate and Style, ventral view; 27. Aedeagus, lateral view; 28. Aedeagus, ventral view; 29. Connective.