Stirellus translucidus, Duan, Yani, Webb, M. D. & Zhang, Yalin, 2016

Duan, Yani, Webb, M. D. & Zhang, Yalin, 2016, Review of the leafhopper tribe Stenometopiini (Hemiptera: Cicadellidae: Deltocephalinae) from China with description of four new species, Zootaxa 4171 (1), pp. 101-138 : 130-132

Stirellus translucidus sp. nov.

( Figs. 25–26 )

Length. Male: 3.9–4.0mm; female: 4.3–5.0mm.

Color. General color sordid white ( Fig. 25 ). Sometimes vertex and pronotum light tannish with orange-red hue ( Fig. 25 C). Forewing translucent ( Fig. 25 A–C).

Body. Long and narrow ( Fig. 25 A–D). Head narrower than pronotum, anterior margin rounded to face, acutely angled. Vertex nearly as long as width between eyes ( Fig. 25 A–C). Ocellus next to eye on anterior margin ( Fig. 25 D). Eye relatively large ( Fig. 25 A–C). Anteclypeus nearly parallel-sided, extending beyond normal curve of genae ( Fig. 25 E–F). Pronotum median length slightly longer than median length of crown. Mesonotum and scutellum shorter than pronotum ( Fig. 25 A–C). Forewing macropterous, usually exposing apex of abdomen in female ( Fig. 25 A–D).

Male. Pygofer side with few macrosetae dorsally, apex truncate ( Fig. 26 A–B). Subgenital plate slightly concave laterally, macrosetae uniseriate laterally ( Fig. 26 D). Style narrow, apophysis slender, digitate, laterally curved ( Fig. 26 E–F). Connective stem shorter than arms ( Fig. 26 G). Aedeagal shaft bent at base, cylindrical, short, broad in lateral view, nearly parallel to aedeagal base ( Fig. 26 H–J).

Female. Hind margin of seventh sternum nearly straight ( Fig. 25 G).

Material examined. Holotype: Ƌ, China, Yunnan Prov., Menglun , 19 May 1991, coll. Wang Yinglun & Tian Rungang . Paratypes: China, Yunnan Prov.: 1Ƌ, Mengla County, Yaoqu , 600m, 7 June 1991, coll. Liu Guanchun & Cai Wanzhi ; 1♀, Menglun , 570m, 7 November 1999, coll. I. Dworakowska ; 1Ƌ, Xishuangbanna Menglun Town , 600m, 7 June 1991, coll. Liu Guanchun & Cai Wanzhi ; 3Ƌ, 1♀, Jingping County, Mengla Town , 450m, 1 May 2013, coll. Xue Qingquan ; 2Ƌ, Honghe, Zhemi , 5 May 2013, coll. Xue Qingquan ; 1Ƌ, 3♀, Luchun, Banpo Town , 10 May 2013, coll. Xue Qingquan ; 1Ƌ, 1♀, Mengla County, 14 May 2013, coll. Xue Qingquan ; 1Ƌ, 3♀, Mengla County, Yaoqu , 23 May 2013, coll. Xue Qingquan .

Remarks. This species can be distinguished from other species of Stirellus by the following combination of characters: forewing translucent; body long and narrow ( Fig. 25 A–D); apex of male pygofer side truncate ( Fig. 26 A–B); shaft relatively broad in lateral view ( Fig. 26 H–J). The aedeagus of this species is similar to that of some species of tribe Chiasmini, but it lacks a hinge near the base of the shaft and the structure of the male pygofer, which slopes caudoventrally, lacks a basolateral membranous cleft, and has a distinct lateral tooth and few macrosetae, indicate that the species is more appropriately placed in Stirellus .

Etymology. This specific epithet is based on the translucent forewing.

Figures

FIGURE 25. Stirellus translucidus sp. nov. A, E: male; others: female. A – C: habitus, dorsal view; D: habitus, lateral view; E – F: face; G: the end of female abdomen, ventral view.

FIGURE 26. Stirellus translucidus sp. nov. A, C: male pygofer and segment X – XI, lateral and dorsal view, respectively; B: male pygofer side, lateral view; D: valve and subgenital plate, ventral view; E – F: style, dorsal view; G: connective, dorsal view; H: aedeagus, dorsal view; I: connective and aedeagus, lateral view; J: aedeagus, lateral view.