The amazonica -group

Description. Adult. Head, in lateral view, inclined at 45° or more from longitudinal axis of body (Fig. 7D). Vertex (Figs 9G–J, 10A, B) trapezoidal, with distinct imbricate microsculpture and microscopical setae. Thorax weakly to moderately arched, with microscopical setae. Forewing (Figs 15J, 16A–E) beset with brown dots; pterostigma strongly expanding towards the middle or apical third, shorter than 4.0 times as wide; vein R 1 strongly curved medially relative to costal wing margin. Paramere lanceolate. Ventral process of the distal aedeagal segment, in lateral view, claw-like and directed dorsad.

Immature. Antenna 10-segmented.

Comments. The six Brazilian species are associated with Annonaceae . Due to a similar forewing shape and venation as well as the structure of the distal segment of the the aedeagus, the six species and also M. olgae sp. nov. from the olgae -group could be closely related.