Aeneous

They are unquestionably distinct from the B. velatus, — being not only more æneous and metallic, with their pubescence even coarser still, and of a much more golden hue, but their entire punctation is deeper and (particularly on the head) less dense[…].

The normal colour of the whole upper surface is rich metallic green, in some examples having a more æneous or golden-green tint.

It is useful to combine with each dose of the bromides 2-5 mins. of liquor arsenicalis, or 2-5 grs. of salol, which tend to diminish the symptoms of bromism, the most characteristic of which are aeneous eruptions on the forehead, face, and back, alimentary disorders, and mental lethargy.

The female is larger, more convex, more coarsely sculptured, paler and more æneous in lustre and with the prothorax less transverse and more narrowed anteriorly.

Very similar to australiensis but the postmarginal vein absent, the thorax more aeneous and more deeply punctate, umbilicately punctate, the scape is metallic only at the middle portions, the ends white and the grooves on each side of the median carina of propodeum are shallower.

[…]the colour is more aeneous overall and lacks the blue reflections;[…].