Omaspides augusta

Appearance

Length: 13.5–14.8 mm, width: 13.4– 14.2 mm, length of pronotum: 3.7–4.0 mm, width of pronotum: 6.9–7.7 mm, length/width ratio: 1.00– 1.06, width/length of pronotum ratio: 1.83–1.95.
Pronotum black, with indistinct blue or green metallic tint, anterior margin narrowly reddish. Elytral disc black, with more or less distinct blue metallic tint, in some specimens posterolateral parts of disc with red, thin reticulation. Explanate margin black, with more or less distinct blue metallic tint, in the middle with large, reddish reticulate spot, dark lateral margin broad. Ventrites mostly dark brown to black, posterior margin of abdominal sternites narrowly yellowish, sides of sternites with small, transverse dilute reddish-brown spots.
Pronotum almost regularly semicircular. Disc on whole surface microreticulate, dull, with several fine pricks and very narrow and short median line.
Elytra broad, humeri regularly rounded, apex almost regularly rounded. Disc evenly convex, in the middle with very low reticulate sculpture, if reticulation reddish then slightly more elevated than on dark parts of disc. Fields of reticulation finely and densely punctate, distance between punctures mostly narrower than puncture diameter. Net of reticula- tion mostly impunctate, except punctate basal and sutural parts of disc. Surface microreticulate, dull. Explanate margin of elytra in the widest part slightly less than twice narrower than disc, with broad reddish
reticulation, both, fields and reticulation, with fine punctation, punctures distinctly finer than those of disc.