4) Colocasiomyia cristata de Meijere, 1914

(Figs 3E–H, 4B, 5C,F, 6C, 7B,D, 9G, 10C–E, 11H,I, 12C,D, 15D, 19)

Colocasiomyia cristata de Meijere, 1914: 273; Duda, 1924: l77; Okada, 1988: 35.

Diagnosis. A pair of processes on male abdominal sternite VI long (> 0.05 mm), slightly divergent and curved inward (Fig. 9G). Phallal sheath apically looking like arrowhead in ventral view (Fig. 11I).

Supplementary description. Supracervical setae 6–9 per side, nearly straight, as long as inner occipital setae (Fig. 3E). Cibarial, medial sensilla 2–3 per side; posterior sensillum 1 per side (Fig. 4B). Supralateral seta outside prementum 4–5 per side (Fig. 19B). Anterior dorsocentral setae just beside transverse suture (Fig. 5C). Male abdominal sternite III as wide as long; IV wider than long (Fig. 19C). Female abdominal sternites IV–VI longer than wide (Fig. 19D). Epandrium pubescent except for anterior margin and anteroventral elongation, roundish on posteroventral margin, with approximately 2 setae on dorsal portion and 23–24 setae thicker than cercal setae on ventral portion of each side (Fig. 10C). Cercus pubescent on dorsal half but not on anterior margin and ventral portion, extended below, slightly constricted ventrosubapically in lateral view, with approximately 42 setae (Fig. 10C). Phallapodeme less sclerotized thin plate, nearly perpendicular to phallal axis (Fig. 11H). Hypoproct not pubescent (Fig. 12C,D). Oviscapt gently sinuate, as long as phallus (apodeme + sheath), apically round, with patch of pubescence on subdistal portion and 20–21 ovisensilla only on distal portion occupying less than 1/2 length of oviscapt (Fig. 12C).

Specimens examined. Indonesia: 1♂, Bogor Botanical Garden, Bogor, West Java, 6°36´9.9˝S, 106°47´47.8˝E, 273 m a.s.l., 9.i.2004, ex Alocasia alba Schott, K.T. Takano leg .; 2♀, ditto except 14.i.2004; 1♂, KPH Gadung, Limus Nunggal, Cisaga, Ciamis, West Java, 7°20'13˝S, 108°32'23˝E, 50 m a.s.l., 22.xii.2004, ex Alocasia alba, K.T. Takano leg .; 5♂, 1♀, Curug Sewu, Central Java, 16.x.2005, ex Alocasia alba, M.J. Toda leg. (SEHU) .

Distribution. Java (West and Central Java).