Phylogeny, taxonomy and flower-breeding ecology of the Colocasiomyia cristata species group (Diptera: Drosophilidae), with descriptions of ten new species Author Takano, Kohei Takenaka Author Gao, Jian-Jun Author Hu, Yao-Guang Author Li, Nan-Nan Author Yafuso, Masako Author Suwito, Awit Author Repin, Rimi Author Pungga, Runi Anak Sylvester Author Meleng, Paulus Ak Author Kaliang, Clement Het Author Chong, Lucy Author Toda, Masanori J. text Zootaxa 2021 2021-12-08 5079 1 1 70 journal article 2931 10.11646/zootaxa.5079.1.1 010695ef-a142-42ad-81d7-2e7ed1f7e89e 1175-5326 5766402 2B118B81-7353-4A2C-A892-5466DFC83230 2.4 Colocasiomyia xenalocasiae species complex, new Diagnosis . A pair of processes on male abdominal sternite VI entirely pubescent (ch.23-1; Fig. 9N–R ). Additional, interfrontal setulae on fronto-orbital plate absent (ch.2-1). Cibarial, medial sensilla in parallel rows as wide as sensilla campaniformia (ch.5-0; Fig. 4A ). Shared characters. Supracervical setae distally more or less curved, longer than inner occipital setae (ch.1-0). Anterior reclinate orbital seta small, situated just beside or behind proclinate orbital seta. Distance between antennal sockets wider than half of socket width (ch.4-0). Anterior dorsocentral setae behind transverse suture (ch.7-0). Additional dorsocentral setae on presutural area absent. Katepisternal setae large; posterior one longer than longest, postpronotal seta (ch.10-0). Basal scutellar setae short, not reaching to half of apical scutellar setae (ch.11-0; Fig. 5D ). Patch covered with only minute pubescence absent on anterodorsal portion of fore tarsomere I (ch.13-1). Male abdominal sternite V medially concaved on posterior margin. Female abdominal sternites III–V longer than wide (ch.19,20,21-1). Processes on male abdominal sternite VI longer than 0.05 mm , bearing neither prominent seta nor sclerotized claw on apex but small setae on submedial to distal portion (ch.25,26,27,28-0; Fig. 9N–R ). Epandrium more or less triangularly angled at posteroventral corner (ch.30-0; Fig. 10F ); setae on posteroventral portion as thick as cercal setae (ch.32-0; Fig. 10F ); phragma small (narrower than epandrial anteroventral corner) expansion on antero-subapical margin (ch.33-2; Fig. 10F ). Cercus ventro-apically differentiated into small lobe with a number of small setae (ch.38-0; Fig. 10F ). Phallal sheath not pubescent, gently curved ventrad, as thick as wide, apically not bilobed, not projected at dorsobasal corner in lateral view (ch.41,42-0, 40,43,44-1; Fig. 11D,E ); phallapodeme more or less sclerotized plate directed nearly along or slightly oblique to phallal axis (ch.45-1, 46-0; Fig. 11D ). Gonocoxites long, narrow slips ( Fig. 11D ). Epiproct and hypoproct with pubescence (ch.48-0). Oviscapt shorter than phallus (apodeme + sheath), with ovisensilla only on distal portion occupying less than 1/2 of total length (ch.49-0, 51-1). Included species. Colocasiomyia pistilicola , C . xenalocasiae , C . diconica , C . sumatrana sp. nov. and C . leucocasiae sp. nov.