Spencer, 1966: 18 Spencer & Stegmaier, 1973: 90 Agromyzidae (Diptera: Schizophora) in the state of Pará: new species and new records in Brazil Monteiro, Nilton Juvencio Santiago Barbosa, Rodrigo Rendeiro Esposito, Maria Cristina Zootaxa 2019 2019-06-28 4624 2 151 182 Spencer, 1966 Spencer 1966 [151,608,476,503] Insecta Agromyzidae Calycomyza Animalia Diptera 18 169 Arthropoda species stegmaieri     Calycomyza stegmaieri  Spencer, 1966: 18;  Spencer & Stegmaier, 1973: 90.   Diagnosis.Wing length 1.6 mm. Fronto-orbital darkened in the upper half; face greyish-yellow; pedicel brown; legs brown, with apex of femur and base of tibia yellow in the fore leg; calypter yellowish with margin black, fringe black. Aedeagus (Fig. 24 and 25): basiphallus slightly sclerotized with two extensions distally; mesophallus short, elliptic, with paired extension distally; quadrate sclerite present between mesophallus and distiphallus; distiphallus short, forming two cylindrical tubules swith paired extensions ventrally.  Host-plants.Convolvulaceae—  Ipomoea albaL.,  I. batatas(L.) Lam.   Distribution.* Brazil, Dominican Republic, Guadeloupe, USA.   Material examined.Universidade Federal do Pará( UFPA), 1º28′25.0″S, 48º27′20.7″W, 19-VI-2017, R.R. Bar- bosa [collector], ex leaf of  Ipomoea batatas( ♂).   Comments.  Calycomyza stegmaieriand  C. ipomoensisare similar in their external morphology and in the shape of their mines, but there are major differences in the aedeagus, with  C. stegmaierihaving a more elongated mesophallus, a smaller distiphallus, and a different shape to the distiphallus tubules.