Colocasiomyia pistilicola ( Carson & Okada, 1980 )

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, Zootaxa 5079 (1), pp. 1-70 : 40

11) Colocasiomyia pistilicola ( Carson & Okada, 1980)

( Figs 9N , 25 )

Drosophilella pistilicola Carson & Okada, 1980: 18 .

Colocasiomyia pistilicola: Okada, 1988: 36 .

Diagnosis. A pair of processes on male abdominal sternite VI basally fused to each other, forming somewhat Vshaped plate ( Fig. 9N ).

Supplementary description. Supracervical setae 4–5 per side. Eye with stout, dense interfacetal setulae. Cibarial, medial sensilla approximately 2 per side; posterior sensillum 1 per side. Supralateral setae outside prementum approximately 3 per side. Prescutellar acrostichal setae absent. Apical scutellar setae nearer to each other than to basal scutellar seta. Costal setae in middle row all weak, trichoid ( Fig. 25A ). Mid tibia with approximately 3 apical, stout setae ( Fig. 25C ). Epandrium pubescent except for anterior margin and anteroventral elongation, posteroventrally extended, with 0–2 setae on lateral to dorsal portion and 17–21 setae on ventral portion of each side ( Fig. 25E,F ). Cercus pubescent except for anterior margin and ventro-apical small lobe, with 35–39 setae ( Fig. 25E,F ). Oviscapt about 9 times as long as wide, with 15–16 ovisensilla ( Fig. 25I ).

Specimens examined. Papua New Guinea: 2♂ 2♀ paratypes, Lae, 30.viii.1977, ex Colocasia esculenta, H.L. Carson and T. Okada leg. ( NSMT) .

Distribution. Papua New Guinea.

Figures

FIGURE 9. Male abdominal sternite VIs of Colocasiomyia colocasiae (Duda) (B in anteroventral view, C in lateral view), C. stamenicola (Carson & Okada) (D in anterior view) and all species of the C. cristata subgroup (A in ventral view, E‒R in anterior view): A, C. ecornuta sp. nov.; E, C. grandis sp. nov.; F, C. vieti sp. nov.; G, C. cristata de Meijere; H, C. matthewsi sp. nov.; I, C. sulawesiana Okada & Yafuso; J, C. kinabaluana sp. nov.; K, C. kotana sp. nov.; L, C. sabahana sp. nov.; M, C. sarawakana sp. nov.; N, C. pistilicola (Carson & Okada); O, C. xenalocasiae (Okada); P, C. diconica (Toda & Okada); Q, C. sumatrana sp. nov.; and R, C. leucocasiae sp. nov. Scale bars: 0.1 mm.

FIGURE 25. Colocasiomyia pistilicola (Carson & Okada) (♂ and ♀ paratypes). A, Wing of ♀ paratype; B–D, fore (B), mid (C) and hind (D) legs of ♀ paratype; E,F, periphallic organs (E, left side; F, right side) in lateral view; G, phallic organs (lateral view); H, tergites VII and VIII, epiproct and hypoproct (lateral view); I, oviscapt. Scale bars: 0.5 mm in A, 0.1 mm in B–I.