Diplacina sanguinolenta

A relatively robust Diplacina with a dark brown to black body and extensive creamish-white markings on the thorax. The labium and labrum are black, while the clypeus is ochreous. The frons and vertex are dark brown with a distinct blue-green metallic sheen, becoming more ochreous toward the anterior sides of the frons. The synthorax is dark brown with broad pale antehumeral stripes and two pale lateral markings across the mesepimeron and metepisternum. The metepimeron is largely creamish white but bears a diffuse diagonal brown band. The legs are black. The wings are hyaline, with 13–16 antenodals in the forewings and about 12 in the hind wings; the anal loop of the hind wing is foot-shaped. The abdomen is conspicuously coloured, with segments 1–3 somewhat swollen. Segments 2–3 and the anterior two-thirds of segment 4 are bright red, while segment 1 and the remaining abdominal segments are brownish black. Segment 2 may show a diffuse dark arrow-shaped marking. The male anal appendages are relatively slender; the superior appendages bear three to four large subacute ventral teeth, while the inferior appendage has a bifid apex with the tips curved upward. Females are similarly patterned, although the thoracic markings are more yellowish in preserved specimens. In life, the thoracic bands were reported as bright greenish white. The abdomen is red on segments 2–7, with black dorsal, ventral, and lateral carinae; segments 8–10 are brownish black, and tergite 8 is laterally expanded.