Colocasiomyia colocasiae
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 colocasiae

description: 1. Colocasiomyia colocasiae species subgroup
Colocasiomyia colocasiae species subgroup: Takenaka et al., 2006: 84.
Diagnosis. Epandrial phragma prominent (wider than epandrial anteroventral corner), somewhat shell-shaped expansion on antero-subapical margin (ch.33-1; Fig. 10A). Surstyli absent (ch.34-2; Fig. 10A). Lateral pieces of subepandrial sclerite less sclerotized, small, somewhat triangular plate-like (ch.37-1; Fig. 10A). Cercus nearly entirely oval (ch.38-1; Fig. 10A). Phallal sheath prominently projected anterodorsad at dorsobasal corner in lateral view (ch.41-2; Fig. 11A).
Shared characters. Supracervical setae distally more or less curved, longer than inner occipital setae (ch.1-0; Fig. 3A). Additional, interfrontal setulae on fronto-orbital plate absent (ch.2-1; Fig. 3B). Distance between antennal sockets wider than half of socket width (ch.4-0; Fig. 3C). Cibarial, medial sensilla in parallel rows narrower than sensilla campaniformia (ch.5-2); posterior sensilla present (ch.6-0). Anterior dorsocentral setae situated behind transverse suture (ch.7-0; Fig. 5A). Additional dorsocentral setae on presutural area absent (Fig. 5A). Prescutellar acrostichal setae absent (ch.8-1; Fig. 5A). Acrostichal setulae in 4 rows (ch.9-0; Fig. 5A). Katepisternal setae large; posterior one as long as or longer than longest, postpronotal seta (ch.10-0; Fig. 5E). Basal scutellar setae short; posterior tip not reaching to half of apical scutellar setae (ch.11-0; Fig. 5A). Apical scutellar setae nearly equidistant from each other and from basal scutellar seta (Fig. 5A). Apically blunt, heavy, peg-like costal setae in middle row interspersed with weak, trichoid ones (ch.12-1; Fig. 6B). Fore tarsomere I with patch covered with only minute pubescence on anterodorsal portion (ch.13-0; Fig. 7A). Mid tibia with 2 or more apical setae (ch.15-0; Fig. 7C). Male abdominal sternites IV and V and female sternites III–VI longer than wide (ch.17–22-1; Fig. 8C,D). Male abdominal sternite VI not pubescent at least partly (ch.23-0; Fig. 9B–D), with single process longer than 0.05 mm and not bearing prominent seta on apex but small setae on submedial to distal portion (ch.24-2, 25–27-0; Fig. 9B–D). Epandrium roundish on posteroventral margin (ch.30-1), with seta as long as width of epandrium and short setae as thick as cercal setae on posteroventral portion (ch.31,32-0; Fig. 10A). Median piece of subepandrial sclerite broad, somewhat quadrate plate (ch.36-0; Fig. 10A,B). Cercus wider than 1/2 cercal length (ch.39-1; Fig. 10A). Phallal sheath nearly straight, apically vertically bilobed, as thick as wide, without pubescence (ch.40-0, 42–44-1; Fig. 11A,B). Phallapodeme more or less sclerotized, slightly oblique to axis of phallal sheath, longer than 1/2 of phallal sheath (ch.45-1, ch.46,47-0; Fig. 11A,B). Epiproct and hypoproct pubescent (ch.48-0; Fig. 12A,B). Oviscapt not longer than phallus (apodeme + sheath), with ovisensilla on portion occupying 1/2 or more in length of oviscapt; distal portion differentiated into more or less narrow process from basal, broad portion with dense, fine wrinkles (ch. 49–51-0; Fig. 12A).
Included species. Colocasiomyia colocasiae, C. alocasiae, C. iskandari, C. steudnerae and C. stamenicola. A total of 14 putatively new species probably belong to this subgroup (Fartyal et al. 2013; Toda unpublished data; Fig. 14). The species-status determination and description of them will be done elsewhere.
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 20-21, DOI: 10.11646/zootaxa.5079.1.1, http://zenodo.org/record/5766402