altivolans species-group

Diagnosis. Male. Metasoma with median depression, dense tufts of setae. Digitus serrated with rounded teeth inner upper margin. Aedeagal ventral ramus wide.

Remarks. It has six species: D. altivolans Evans, D. deformis Evans, D. megomphalus Evans, D. subdeformis Azevedo, D. lanceolatus Azevedo and D. isteus sp. nov. .

Distribution. Ranging from northern U.S.A. to north of Argentina, including some Caribbean islands.