Dacus (Neodacus) Perkins 1805

Key to Asian species of subgenus Neodacus Perkins 1. Scutum with medial yellow vitta or patch that broadens posteriorly, abdomen with black longitudinal medial vitta on at least tergites III–V and wing with or without a broad apical spot.................................................... 2 - Scutum without a medial yellow vitta or patch, abdomen without a medial black vitta except on tergite V and wing with a broad apical spot.......................................................................................... 3 2. Scutum with a broad yellow transverse patch posteriorly, costal band confluent with vein R 4+5, broad apical spot crosses vein M into cell m (Lombok, Indonesia)............................................. D. (N.) santongae Drew & Hancock - Scutum with medial yellow vitta broadened posteriorly, costal band broadly crossing vein R 4 +5 and confluent with vein M at apex (Sulawesi, Indonesia)......................................................... D. (N.) ortholomatus Hardy 3. Elongate black facial spots almost reach antennal suture, abdomen with narrow black bands on tergites III &V anteriorly, katatergite and anatergite entirely yellow and posterior lobe of lateral surstylus long......................... D. (N.) sp. - Elongate black facial spots either distant from antennal suture or connected by a thin narrow line anteriorly, abdomen with moderate to broad black bands on tergites III & V anteriorly, katatergite and anatergite with basal portions black (at least basal 20%) and posterior lobe of lateral surstylus short............................................................ 4 4. Postpronotal lobes yellow, wing cell m without folds in male (Figure 10E), black band on abdominal tergite III moderate, as or less than half width of tergite III, tergite IV without band, tergite V with a moderately broad black band not reaching lateral margins or enclosing ceromata, with a narrow medial vitta not reaching between ceromata and spermatheca triangular in view (India, Pakistan, Thailand, Vietnam, SE China) (cf. Figure 2C, Hardy, 1973 and 10B; David & Ramani, 2019).......................................................................................... D. (N.) sphaeroidalis (Bezzi) - Postpronotal lobes fuscous, wing cell m with folds in male (Figure 6B), black band on abdominal tergite III wider than half width of tergite III, tergite IV with narrow black band, tergite V with a broad black band reaching lateral margins and enclosing ceromata apically, with a distinctly broad medial vitta reaching beyond ceromata and spermatheca linear in view......................................................................... D. (N.) kapoori Maneesh & Hancock, sp. nov.