Genus Plega Navás, 1928

Species of this genus are characterized by a mottled coloration pattern, a row of tubercles in the mid-line on distal half of fore femur that splits into two rows near the basal half (Fig. 2b); laterally to the tubercles there is a row of stout setae restricted to the distal half of the femur (Fig. 2b) (Parker & Stange 1965); the sub-basal major spine is present (Fig. 2b); the foretrochanter lacks a medial dentiform process on inner surface (Fig. 2b), and the forewing has the rarp2 cell curved (Fig. 1b) (Penny 1982b; Ardila-Camacho et al. 2018).

Included species. Plega banksi Rehn, P. beardi Penny, P. dactylota Rehn, P. duckei Penny, P. fratercula Rehn, P. fumosa Linsley & MacSwain, P. hagenella (Westwood), P. mixteca sp. n., P. melitomae Linsley & MacSwain, P. paraensis Penny, P. signata (Hagen), P. sonorae sp. n., P. spinosa sp. n., P. stangei sp. n., P. variegata Navás, P. yucatanae Parker & Stange, and P. zikani Navás.