Colocasiomyia xenalocasiae
Creators: name: Takano, Kohei Takenaka
name: Gao, Jian-Jun
name: Hu, Yao-Guang
name: Li, Nan-Nan
name: Yafuso, Masako
name: Suwito, Awit
name: Repin, Rimi
name: Pungga, Runi Anak Sylvester
name: Meleng, Paulus Ak
name: Kaliang, Clement Het
name: Chong, Lucy
name: Toda, Masanori J.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Drosophilidae
Colocasiomyia
Colocasiomyia xenalocasiae

description: 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.
description: Published as part of Takano, Kohei Takenaka, Gao, Jian-Jun, Hu, Yao-Guang, Li, Nan-Nan, Yafuso, Masako, Suwito, Awit, Repin, Rimi, Pungga, Runi Anak Sylvester, Meleng, Paulus Ak, Kaliang, Clement Het, Chong, Lucy & Toda, Masanori J., 2021, Phylogeny, taxonomy and flower-breeding ecology of the Colocasiomyia cristata species group (Diptera: Drosophilidae), with descriptions of ten new species, pp. 1-70 in Zootaxa 5079 (1) on pages 39-40, DOI: 10.11646/zootaxa.5079.1.1, http://zenodo.org/record/5766402