Bryodemella, Yin

Yin, Xiang-Chu & Wang, Wen-Qiang, 2005, Two new species of the genus Bryodemella (s. str.) from China (Orthoptera: Oedipodidae), Zootaxa 973, pp. 1-7 : 5-6

Key to 8 known species of subgenus Bryodemella (s. str.) from China

1 Hindwings without dark fascia in middle. Medial area of elytra without intercalary vein. Lower kneelobes of hind femora wide, lower margin rounded (fig. g) ................. ..........................................................................(1) B. (s. str.) holdereri ( Krauss, 1901) ­ Hindwings with dark fascia in middle (figs. a, c). Medial area of elytra with weak or very weak intercalary vein. Lower kneelobes of hind femora not wide, lower margin nearly straight (fig. f) ................................................................................................... 2

2 Male body smaller, with body length under 23 mm. Pronotum with a testaceous band along posterior border ................................................... (2) B. (s. str.) elegans Li, 1997

­ Male body larger, with body length over 23 mm. Pronotum without a testaceous band along posterior border ................................................................................................... 3

3 Dark fascia in middle of hindwings narrow and discontinuous in male (fig. c). Hind femora entirely black in inner and lower sides (fig. h). Hind tibia yellow .................... .................................................................................(3) B. (s. str.) nigrifemura , sp. nov

­ Dark fascia in middle of hindwings wide and continuous in male (fig. a) Hind femora red or partially black in inner and lower sides (fig. e); if entirely black in inner and lower sides of femora, then hind tibia not yellow......................................................... 4

4 Male and female differentiated distinctly. Male moderately slender, both elytra and hindwings developed, extending not to end of hind tibia; female robust, elytra short, extending not to, to or slightly beyond end of hind femora. Hind tibia blood red or orange red (figs. a–b) .................................................................................................... 5

­ Male and female differentiated not distinctly. Elytra and hindwings developed, elytra extending slightly not to or beyond end of hind tibia in male, at least extending to end of basal third of hind tibia in female. Hind tibia dark yellow ......................................... .............................................................. (4) B. (s. str.) tuberculatum ( Fabricius, 1775)

5 Dark fascia of hindwings in male narrow, breadth distinct less than width of elytra. Hindwings of male without dark speckle in terminal part. Elytra in female longer, extending beyond to end of hind femora....................................................................... 6

­ Dark fascia of hindwings in male broad, breadth about equal to width of elytra. Hindwings of male with two dark speckles in terminal part. Elytra in female shorter, extending not to end of hind femora ............................................................................. 7

6 Anterior part of vertex in both sexes with no median carinula. Hind femora with red fascia in preapical part. Hind tibia blood red. Body small in size................................... .................................................................(5) B. (s. str.) diamesum ( Bei­Bienko, 1930)

­ Anterior part of vertex in both sexes with distinct carinula. Hind femora with orange yellow fascia in preapical part. Hind tibia orange red. Body large in size...................... .............................................................................. (6) B. (s. str.) xizangensis Yin, 1984

7 Elytra in female extending nearly to knees of hind femora. Red area in base of hindwings large. Inner and lower sides of hind femora black (fig. h). Inner side of hind tibia violet, outside ochreous..........................(7) B. (s. str.) gansuensis ( Zheng, 1985)

­ Elytra in female extending just to middle of hind femora (fig. b). Red area in base of hindwings small. Inner and lower sides of hind femora darkish red (fig. a­b). Inner side of hind tibia orange red, outside orange yellow ...................................................... ..............................................................................(8) B. (s. str.) xinjiangensis , sp. nov.