Archaeogomphus Williamson, 1919

Small brownish gomphids (Fig. 71) rarely seen at water. Nymphs have been collected in Ecuador and one ♂ was reared but the species has not been identified. The unusual nymphs bury themselves in the shallow edges of small, sandy forest streams.

Archaeogomphus unresolved: NA, Tena: 1 ♂, reared, Río Sinde, E of Puerto Napo, 12 xi 1997, leg. & det. KJT [KJT].