Acisoma inflatum, the stout pintail[2] is a species of dragonfly in the family Libellulidae.

Throughout much of Africa; relict populations exist north of the Sahara in Algeria, Egypt and Libya.

[2] It is found near and in calm water bodies with grass, such as grassy ponds and pans.

[2] Distribution overlaps with the similar Acisoma variegatum (slender pintail) in southern and eastern Africa.

[2] The two species can be differentiated based on abdominal markings and abdomen shape.