Fam. BIBIONIDÆ, Haliday.
Gen. Plecia, Hoffmansegg.
1. Plecia dorsalis, n. s., mas et fœm. Atra, thorace rufo, alis nigricantibus.
Male and female. Deep black. Thorax bright pale red. Wings blackish. Length of the body 2½–3½ lines; of the wings 7–8 lines.
The totally red thorax of this species distinguishes it from P. fulvicollis, Wied., and from P. ignicollis, Walk.
Singapore and Mount Ophir.