Kirbyana furcata
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Ordo: Hemiptera
Familia: Cixiidae
Genus: Kirbyana
Name
Kirbyana furcata Zhi & Chen sp. nov. – Wikispecies link – ZooBank link – Pensoft Profile
Type material
Holotype: ♂, China: Yunnan Province, Maguan County, Dulong Town, Jinzhuping Village (22°56'N, 104°30'E), 14 August 2017, leg. Yan Zhi, Qiang Luo and Nian Gong; Paratypes: 1♂1♀, Guangxi Zhuang Autonomous Region, Hechi City, Jinchengjiang Park (24°41'N, 108°3'E), 17 July 2015, leg. Ying-Jian Wang.
Description
Body length: male 4.4‒5.3 mm (N = 2), female 5.2 mm (N = 1).
Coloration. General color light brown (Fig. 4A–E). Eyes blackish brown, ocelli light yellow, semitransparent. Vertex generally yellowish white. Face generally brown; rostrum light brown. Pronotum with discal areas and mesonotum with area between lateral carinae yellowish white, lateral areas brown. Forewing light brown, semi-translucent, the basal half dotted with small dark brown spots and distal half with two large dark brown patches; small dark brown spots on the ends of longitudinal veins; stigma light brown. Hind tibiae yellowish brown and abdominal sternites dark brown. Head and thorax. Vertex (Figs 4C, 5A) broad, 1.7 times wider than long; anterior margin truncated, posterior margin arched and recessed. Frons (Figs 4D, 5B) widest slightly below the level of antennae, 1.1 times as long as wide; frontoclypeal suture nearly concave into an arch; middle carina with basal half absent; lateral carinae distinct and slight elevated. Pronotum (Figs 4C, 5A) 1.8 times longer than vertex; median carina indistinct, posterior margin nearly at right angle. Mesonotum 1.6 times longer than pronotum and vertex combined. Forewing (Fig. 5C) 2.5 times longer than wide, with 11 apical and 6 subapical cells; fork Sc+RP basad of fork CuA1+CuA2, first crossvein r-m slightly basad of fork MP, RP two branches, MP with five terminals: MP11, MP12, MP2, MP3 and MP4, fork MP1+MP2 basad of fork MP3+MP4. Metatibiotarsal formula: 6/9/9, second segment of hind tarsus with four platellae (Fig. 5D). Male genitalia. Pygofer (Fig. 5E, F) symmetrical, dorsal margin concave and U-shaped, slightly widened towards apex and concaved medially in ventral view; in lateral view, lateral lobes trapezoidally extended caudally, medioventral process round in ventral view. Anal segment (Fig. 5E, G) broad, dorsal margin almost straight, apical half of ventral margin convex, apical lobes round in lateral view; 1.5 times longer than wide in dorsal view; anal style strap-shaped, not beyond anal segment. Gonostyli (Fig. 5E, F, H) symmetrical in ventral view; in inner lateral view, base of ventral margin concave, dorsal margin bending inwards at a nearly right angle in the middle, apical part extended, apical margin transversal. Aedeagus (Fig. 5I–L) with total of seven processes. On right side, apex of periandrium with a long spinous process, sinuous, apex directed right-ventrocephalically; base of ventral margin with a long furcate process, one ramus large, apex strongly curved and directed dorsocaudally, the other ramus rather small; a shorter curved spinous process on ventral margin near base, apex directed dorsocaudally; apex of periandrium with a medium-sized spinous process, slightly curved and directed ventrocephalically. Endosoma moderately sclerotised, relatively short, generally curved dorsally. Three spinous processes on or near the apex, the right one medium-sized, slightly curved and directed ventrocephalically; the middle one on the dorsal margin, longest and straight, apex directed right-ventrocephalically; the left one extremely short, apex directed cephalad.
Etymology
The specific name is derived from the Latin word “furcata”, referring to the base of ventral margin of periandrium with a long furcate process.
Host plant
Distribution
China (Guangxi, Yunnan).
Remarks
This species can be distinguished from the other species of the genus by the following characters: ventral margin of periandrium with three spinous process, two on base and one on apex; apex of periandrium with a long spinous process on the right side; endosoma with three spinous processes on or near the apex.
Original Description
- Zhi, Y; Yang, L; Chen, X; 2021: Two new bamboo-feeding species of the genus Kirbyana Distant, 1906 from China (Hemiptera, Fulgoromorpha, Cixiidae) ZooKeys, 1037: 1-14. doi
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