Distribution: Siberut Island, Mentawai Archipelago, Indonesia.
Holotype length:
29.7 mm, maximum humeral width 13.5 mm. Body coppery
greenish-gold with purpureous lustre.
Head:
Dark green with golden-green lustre, widest in apical third. Frons with several
simple, large punctures and dense micropunctures. Punctation of clypeus more rugose, some
punctures confl uent. Apex of clypeus deeply incised. Scape dark green, rest of antenna black.
Setation of antenna blackish.
Pronotum:
Dark green with strong golden-purpureous lustre. Lateral sides with large simple punctures, fi ner simple punctures present throughout length, very fi ne micropunctures
densely and regularly placed throughouth pronotal surface. Laterally bordered throughout
length. Termination of pronotal lobe obtuse.
Scutellum:
Small, sharply triangular, with micropunctation. Glabrous midline present.
Elytra:
Shape similar to nominotypical subspecies, but more parallel-sided. Dark green
with strong golden-purpureous lustre. Apex and part of apical calli wrinkled. Apical two-thirds
of sides also with similar wrinkles. Rest of surface with eight to nine longitudinal punctured
lines. Apical calli obtuse, glabrous, shining. Humeral calli indistinct, with several irregularly
shaped impressions. Epipleura developed in basal third. Sutural ridge fl at in basal half, mildly
and obtusely elevated in apical half, its termination sharply pointed, very shortly protruding
over elytral apex.
Pygidium:
Dark green, refl ective, wrinkled throughout length.
Venter:
Abdomen dark green with metallic refl ection, which is more visible in anterior part of
each ventrite. Sides of each ventrite with few wrinkles, middle parts with transverse line of fi ne
punctures. Medial furrow developed, shallow but rather wide. Metasternum almost glabrous
medially (dense micropunctation present), fi nely wrinkled along sides. Mesometasternal
process robust, protruding to level of procoxae, its end sharply pointed and bent downwards.
Prosternum and mentum dark green to blackish, slightly refl ective, both wrinkled.
Legs:
Femora, tibiae and tarsi green, refl ective, setation blackish. Coxae black. Protibia
tridentate, anterior teeth small, obtuse, but distinctly developed. Meso- and metatibiae with
fi ne carina approximately in posterior third of length.
