From the antennal process to the middle of the arrowhead shaped spot there is a yellowish line, very narrow above, widening below.

The opaque portion of the front is thinly white pollinose, and can be seen only in certain lights, most conspicuously at the orbit of the eye.

The gena is broadly black with an abbreviated yellow stripe from the inferior orbit of the eye.

The scape is slender with the basal two-thirds reddish brown and scarcely longer than the flagellum.

The vertex is reddish brown with the sides of front below thinly provided with yellowish pile.

Each side of mesonotum is reddish brown, from above seen as an outwardly arched stripe, beginning a little in front of the scutellar ridge and extending to the transverse suture.

Along the middle of mesonotum, in front, are two parallel, narrow, yellowish pollinose stripes, not quite reaching the anterior border, but each one terminating in a transverse, yellowish pollinose spot on the transverse suture, behind which the stripes are faintly visible.

The abdomen is black, much contracted at the base of the second segment, provided with short, appressed yellowish pubescence and yellow, stripes that are slightly raised.

There is also a faint U-shaped, or curved yellowish pollinose line on each side of centre, nearer lower margin.

It also has a larger U-shaped yellowish pollinose line on each side of centre, extending almost entire length of segment.

Segment five is: wholly black, not at all pollinose and the sparse pubescence is mixed yellowish and blackish.

The extreme margin of the wing immediately beyond the apex of the third vein is, however, greyish hyaline, not brown.

At base of the wing the color is yellowish and the cells in the brown field are somewhat lighter along their middle.