Pseudogomphus insignis .

Expl. al. 94 millim.; long. corp. 83 millim.

Male. Dark brown, tinged with reddish, especially on the face and pleura; vertex punctured, shining with green and violet; thorax green above and on the sides in certain lights; third segment of the abdomen Yellow.

Wings yellowish hyaline, darkest at the edges; pterostigma black, covering rather less than 3 cells; fore wings with 16-18 antenodal and 10-12 postnodal nervures; triangles and subtriangular space free.

Hab. Cameroons.