New species of Anastrepha (Diptera: Tephritidae), with a key for the species of the megacantha clade Author Norrbom, Allen L. Author Korytkowski, Cheslavo A. text Zootaxa 2012 3478 510 552 journal article 10.5281/zenodo.282325 8aded192-5c1f-42cf-943f-0f173abc3d85 1175-5326 282325 Anastrepha megacantha clade Diagnosis. Species of the megacantha clade differ from other species of Anastrepha by their pattern of dorsobasal denticles on the eversible membrane, with one medial denticle much larger than the others. The clade belongs to the mucronota species group and may be most closely related to species such as A. lanceola Stone , which have several medial denticles of the eversible membrane somewhat larger than the others. Other useful diagnostic characters include: C-band and S-band separate or connected only anteriorly in cell r1; vein R2+3 sinuous; proctiger with ventral and lateral sclerotized areas connected; and aculeus tip narrow, less than 0.10 mm wide. The group includes A. megacantha Zucchi and the following new species: A. hadracantha , A. haplacantha , A. hyperacantha , A. inaequalis , and A. macracantha .