Diagnosis of Lamprigera male adults

Head totally concealed by pronotum dorsally (Fig. 94); eyes kidney-shaped in lateral view and almost contiguous ventrally (Fig. 95); vertex broadly impressed between eyes (Fig. 95); antennae short, usually no longer than pronotum, 11–segmented, antennomeres 1–2 long and dilated, antennomeres 4–10 or 7–10 serrate, last antennomere briefly bifurcate apically. Pronotum (Fig. 96) well-developed, semi-elliptical, with black central disc and varied translucent edge, as important diagnostic traits for species identification. Abdomen with seven visible sternites (visible sternite = ventrite); abdominal tergites strongly lobed. Luminous organs spot-like, each located in sublateral sides of last abdominal ventrite (i.e. ventrite VII). Male genitalia with medial lobe slender in dorsal/ventral aspect, moderately broad in lateral aspect; parameres subparallel sided, thick and evenly broad, as an important diagnostic character for species identification.

Key to Chinese Lamprigera species (excl. L. angustior and L. scutatu s)

1 Pronotum (Figs. 54, 60, 72, 96) with translucent or light brown area around anterior edge and posterolateral sides of black central disc.......................................................................................... 2

- Pronotum (Figs. 66, 78, 84, 90) only with translucent area at its anterior half and with posterior area darkbrown.......... 6

2 Pronotum (Fig. 96) with triangular black central disc......................................................... 3

- Pronotum (Figs. 54, 60, 72) with semielliptical black central disc............................................... 4

3 Elytra (Fig. 94) all black.......................................................... L. yunnana (Fairmaire, 1897)

- Elytra (Fig. 10) with a narrow yellowish brown rim around outer margin...................... L. taimoshana Yiu, 2017

4 Two expanded dark brown area at the two sides of semielliptical black central disc (Figs. 66, 78)...................... 5

- No dark brown area at the two sides of semielliptical black central disc (Fig. 72)................ L. minor (Olivier, 1885)

5 Medial lobe of male genitalia twice as much as parameres in length (Figs. 55, 56)............ L. alticola Dong & Li, sp. n.

- Medial lobe only a little longer than parameres (Figs. 61, 62)......................... L. luquanensis Dong & Li, sp. n.

6 Parameres with blunt end, pronotum with a thin yellow brown area at posterior edge (Figs. 90-92)................................................................................................ L. nitidicollis (Fairmaire, 1891)

- Parameres with more or less pointed end................................................................... 7

7 End of parameres sharply pointed (Figs. 67, 68)............................... L. magnapronotum Dong & Li, sp. n. - End of parameres only a little pointed..................................................................... 8

8 Body oblong, BW/BL approximate 0.47.............................................. L. nepalensis (Hope, 1831)

- Body wide, BW/BL approximate 0.6................................................. L. morator (Olivier, 1891)