Thlaspidula, Spaeth, 1901

Key to the species of Thlaspidula View in CoL

(modified from Borowiec & Świętojańska 2001)

1 Explanate margin of elytra with spots..................................................................... 2

- Explanate margin of elytra without spots................................................................... 6

2 Explanate margin of elytra with both humeral and posterolateral spots........................................... 3

- Explanate margin of elytra only with posterolateral spots...................................................... 4

3 Postscutellar tubercle high, conical, profile of elytra behind top of tubercle concave; pronotal disc with two large spots....................................................................................... muelleri ( Spaeth, 1903) View in CoL

- Postscutellar tubercle low, obtuse, profile of elytral behind top of the tubercle straight; pronotal disc with four small spots..................................................................................... moseri ( Spaeth, 1915) View in CoL

4 Pronotum width below 5.5 mm, widest in middle; base of elytra slightly wider than pronotum; punctation of the disc regular, broken by elytral relief................................................................................. 5

- Pronotum width above 5.5 mm, widest slightly behind middle; base of elytra distinctly wider than pronotum; punctation of the disc is regular only in the dark part, punctures are broken in the anterior relief and sparser in the posterior relief................................................................................................... sarinoi sp. nov.

5 Pronotal disc at base with two small dark brown triangular spots; elytral disc with large dark brown spots on humeral calli and large square spot behind middle between suture and forth elytral puncture row, connected by narrow band with posterolateral spot of explanate margin; mandibles elongated; claws large with distinct micropectinate....... boisduvali ( Boheman, 1854)

- Pronotal disc at base with two very small dark brown to black obtuse rounded triangular spots; elytral disc with large crescent-shaped dark brown to black spot on humeral calli triangularly protruding at mid-posterior margin and a large square spot behind middle between suture and fifth elytral row of puncture, connected by a band with posterolateral spot of the explanate margin; mandibles stout; claws large with indistinct micropectinate................................. gandangdewata sp. nov.

6 Length below 7.5 mm; black markings of elytra below humeral callus extending to submarginal row of punctures; antennal segments 6–10 uniformly yellow or only slightly infuscate; specimens collected outside Papua ........................ 7

- Length above 8 mm; black markings of elytra below humeral callus extending to marginal row of punctures; antennal segments 6–10 mostly dark brown; specimens collected from Papua ...................... riedeli Borowiec & Świętojańska, 2001 View in CoL

7 Pronotal disc at base with trapezoidal spot, marked in the middle with two small, yellow spots; labrum twice as wide as long; antennae stouter, segments 8–10 2.5 times longer than wide.................................. stellifera Spaeth (1912)

- Pronotal disc at base with two oblique spots separated medially by yellow line or yellow figure; labrum very broad, thrice as wide as long; antennae longer, segments 8–10 at least thrice as long as wide...................... fimbriata Spaeth, 1901 View in CoL