Shortcrowna gen. nov.

Type species: Shortcrowna leishanensis sp. nov. .

Etymology. The name of the new genus is derived from the Latin words short (short) and crown (crown), indicating the shape of its crown.

Description. Body medium sized, 6.2~8.7 mm in length (including tegmen). Head apex in dorsal view arcuately produced, median longitudinal carina lamellate (Figs 1, 3, 5, 7); submarginal carina concentrated on head, and furcated in front of ocelli (Figs 1, 3, 5, 7); area between median carina and submarginal carina distinctly concave, without longitudinal striae (Figs 1, 3, 5, 7). Vertex between eyes shorter than wide, and shorter than pronotum and scutellum (Figs 1, 3, 5, 7). Ocelli small, located laterad of submarginal carina, about half way between eye and apex (Figs 1, 3, 5, 7). Pronotum broad, wider than head, length shorter than half width (Figs 1, 3, 5, 7). Scutellum triangular, shorter than pronotum, with transverse depression distinct, usually black or with black markings (Figs 1, 3, 5, 7). Face including eyes, longer than wide (Figs 2, 4, 6, 8). Frontoclypeus broad and swollen at base, with median longitudinal carina strongly elevated, laterally obliquely striate, usually light yellow with three black markings: one dorsomedially and one on each side of longitudinal carina; lora nearly reaching apex of clypellus (Figs 2, 4, 6, 8). Forewing veins slightly prominent, with R1a; four apical cells; appendix very narrow (Figs 1, 3, 5, 7). Front tibia with dorsal macrosetae 1+1, AV well developed. Hind leg apical femoral setal formula 2+0. Middle trochanter with scattered fine setae ventrally; femur broader and slightly shorter than front femur, setal rows indistinct; tibia with dorsal setae 1+1, ventral rows with few widely spaced setae; PD setae subequal in length (terminology for leg chaetotaxy following Dietrich (2004)).

Male pygofer without ventral process (Figs 14, 19, 24, 29). Subgenital plate elongate, macrosetae irregularly distributed, two rows of setae along inner submargin (Figs 14, 15, 19, 20, 24, 25, 29, 30). Aedeagal shaft tubular, with pairs dorsally fleshy film near middle part, recurved dorsally; gonopore apical (Figs 11, 12, 16, 17, 21, 22, 26 – 28). Style, elongate, anterior portion and caudal portion more slender than middle portion, apex strongly recurved medioventrally, with some macrosetae near the recurved area (Figs 11 – 13, 16 – 18, 21 – 23, 26 – 28). Connective Yshaped, stem longer than arms (Figs 11 – 13, 16 – 18, 21 – 23, 26 – 28).

Female sternite VII (Fig. 31) longer than sternite VI, posterior margin well produced medially. First valvulae (Figs 32, 33) elongate, slender, curved dorsad towards apex, dorsal sculpturing indistinctly concatenate, ventral sculpturing imbricate. Second valvulae (Figs 34, 35) slender in basal 2/3, with median dorsal tooth basad of toothed distal section, only slightly broadened preapically, with irregular, asymmetrical dorsal teeth more prominent towards apex.

Distribution. China (Guizhou, Taiwan).

Remarks. The new genus is very similar to the genus Bundera Distant externally, but it can be distinguished from the latter by: 1) body relatively large; 2) vertex between eyes about as long as wide or slightly shorter than wide; 3) aedeagal shaft tubular, somewhat recurved dorsally, with paired membranous lobes near middle.