FRUIT FLIES OF THE RYUKYU ISLANDS 



39 



R2+3 undulate; Ri^^ more or less sinuute apically, well 

 bristled from base to beyond r-ni; apical section of m 

 nearly parallel with Ro+.i; r-ni beyond middle of IM2, 

 straight and perpendicular; m-cu nearly straight, 

 jiarallel with r-m, with inferior angle of iMo nearly 70°; 

 pterostigma nearly half as long as second costal cell; 

 anal cell distmctly shorter than basal cell, but with 

 very long inferior prolongation which is longer than 

 cell proper. Blackish brown, with costal cells, base of 

 R, allulae and anal lobe hyaline; the hyaline markings 

 as follows: a triangidar costal indentation just beyond 

 l>terostigma, extending below to base of r-m; a median 

 cross band from costa to posterior wing-margin near 

 tip of Cu, slightly narrowed medially and very indis- 

 tinctly curved; a very large triangular apical spot from 

 near tip of R2+3 to posterior wing-margin, leaving rather 

 narrow costal and submedian bands, in the middle a 

 narrow subapical band at center extending from R4+5 to 

 tip of m; a subbasal streak from basal cell to postei'ioj' 

 corner of Cu. 



Legs yellowish, l)lackish pubescent, two jjostei'ior 

 pairs of femora blackish, external surface of front femur, 

 basal portion of midtibia and hind tibia (except the 

 tips) brownish. Forelegs (pi. 14, fig. 11) shortest; 

 femora a little longer than tibia, two rows of black 

 short bristly hairs on externodorsal surface and eight 

 black long bristly hau's, of which the two apical ones 

 are short along the externoventral margin; tibia nearly 

 as long as tarsus; first tarsal segment nearly half as 

 long as tibia, the yellowish brushlike bristles on interno- 

 ventral surface rather sparse and long. Midlegs (pi. 14, 

 fig. 12) longest; femora distinctly longer than tibia, 

 one row of black short bristly hairs along the externo- 

 ventral nuirgin; tibiae distuictly longer than tarsus, 

 with one black apical spur whicii is one-third as long 

 as first tarsal segment, many black short bristles along 

 the apical margin; first tarsal segment 1/2 as long as 

 tibia, or a little longer than four followuig segments 

 together, internoventral surface with brownish rather 

 sparse brushlike bristles, the four apical tarsal segments 

 with two rows of black minute bristles on ventral 

 surface. Hindlegs (yA. 14, fig. 13): femora with one pair 

 of black long bristly hairs near dorsal apex, externo- 

 ventral margin with one row of black somewhat long 

 hairs, the apical ones bristly; tibia shorter than fennir, 

 externodcjrsal margin with one row of black very s|)arse 

 bristly hau's; tarsi as long as tibia, the first segment 

 nearly as long as the four following segments together, 

 the bristles as on midtarsi. 



Length: Body 4.2 mm, wing 5 nun. 



Female (pi. 14, fig. 8). — ^Not conspicuously different 

 from the male, but third antennal segment comjiara- 

 tively narrow, second abdominal tergum distiiu'tly 



narrower than third. Sixtli abdominal tergum a little 

 shorter than fifth; basal segment of ovipositor depressed, 

 conspicuously' shorter than wide, as long as fiftii tergum, 

 shining black, rather sparsely jjubescent, second seg- 

 ment shining castaneous brown. 



Length: Body 4.5 mm, wing 4.3 nun. 



Material examined. — One male (May 8) and one 

 female (May 15) collected on Amami-Oshima Is. 

 They are conspicuously larger than the Formosan 

 species. 



Distribution. — Amami-Oshima Is. , Formosa, Burma, 

 Java, Singapore, Aniboina, India. 



Hendelina superflucta (Enderlein) 



Plate 1.5 



Tri/pcla superflucta Eudcrlciii, 1011, p. 428, fig. .f. 

 Pseudo.ipheyiisnis siiperflmiiis (Eudi'dein). — Shiraki, li):5.'i, p. 168. 



Brownish black to black, with head and front legs 

 ochraceous, of small size, distinguished by the wing- 

 pattern. 



Male. — Head very slightly narrower than thorax, 

 as wide as latter, 1.75 times as wide as long, or 1.54 

 times as high as long. Frons (pi. 15, fig. 3) hardly ele- 

 vated above eye-margins, conspicuously narrower than 

 eye, parallel-sided, moderatelj^ wliitish tomentose on 

 lateral jjortions, very sparse, minute, blackish pubescent 

 on median portion ; vertical calli conspicuously long, 

 more or less pale and sliglitly shining; luuule compara- 

 tively large, a little shorter than wide, colored as frons, 

 slightly concave hi middle; ocellar triangle ill defined, 

 more or less darkened, a rather distinct transverse 

 cariini extendmg to roots of inner verticals. Face (pi. 15, 

 fig. 4) ratlier narrow, slightly longer than wide, with 

 straight lateral margins, obscured by a whitish tomen- 

 tum, with narrow, shallo^y antennal grooves which are 

 more or less darkened and attaui oral inarghi; orbits 

 oclu-aceous, moderately wide, slightly broadened below, 

 with blackisii pubescence; vibrissal margin with black- 

 ish sparse short setae along entire length; epistoma 

 rather broad, more or less wliitish tomentose. Back of 

 head (pi. 15, fig. 2) ochraceous, slightly swollen on 

 lower portion, upper half distiiu-tly hollowed; cheeks 

 narrow, somewhat whitish yellow, with an inconspic- 

 uous genal groove, lower margin with a row of short 

 black bristh' iiah's and on tlie posterior portion some 

 longer ones. Eye in profile wider than half its lengtii, 

 posterior margin sliglitly and anterior margin conspic- 

 uously convex, inferior angle broadly and superior 

 angle somewhat narrowly rounded. All bristles black: 

 fronto-orbitals 2:3, tiie hiforior pairs crossuig, the 

 lowest one distincth' siiorter than otiiers but nearly as 



