Key to the species of Cyparium from the Sunda Islands

1 Body unicolorous. ......................................................................................................... 2

– Body bicolorous. ........................................................................................................... 4

2 Body reddish. Elytra with five rows of punctures on disc (Fig. 2 C). .............................. ................................................................................................... C. punctatum Pic, 1916

– Body blackish. Elytra with six or seven discal rows of punctures. .............................. 3

3 Elytra with six discal rows of punctures. Lateral portion of metaventrite and median portion of abdominal ventrite I coarsely punctate. Parameres of male genitalia slightly widened apically (Fig. 3 A). .......................................................... C. celebense sp. nov.

– Elytra with seven discal rows of punctures. Lateral portion of metaventrite and median portion of abdominal ventrite I finely punctate. Parameres of male genitalia distinctly widened apically. ...................................................................... C. javanum Löbl, 1990

4 Pronotum almost entirely black. Elytra yellowish or ochraceous, each with blackish pattern along discal rows of punctures (Fig. 2 A). Ventral surface black. ........................ ............................................................................................... C. bowringi Achard, 1922

– Pronotum almost entirely reddish, basal part blackish. Elytra reddish, each with blackish pattern on median portion (Fig. 2 D). Ventral surface reddish. ................................ ........................................................................................... C. variegatum Achard, 1920