FRUIT FLIES OK THE RYUKYU ISLANDS 



67 



obscured l)y a greyisli-yelluw toinentuin, witlumt 

 pubescence; scutelluni rather small, nearly half as long 

 as wide, without distinct lateral caroiae, colored and 

 tonientose as hi the mesonotuni, hardly pubescent. 

 Pleura (pi. 25, fig. 8) almost evenly black, obscured by 

 a greyish tomentum and with whitish pubescence; 

 sternopleuron less tomentose than ui mesopleuron, 

 ventral margin with long whitish-yellow hairs; meso- 

 phragma and jiostnotuni black, covered with a greyish 

 tomentum except a median longitudinal portion. All 

 bristles mostly black: scapulars whitish yellow, very 

 short, the inner pair closely spaced; presuturals as 

 long as humeral or anterior notopleural; posterior 

 notopleural yellowish, nearly half as long as anterior; 

 dorsocentrals just behind suture, far before the line 

 connecthig roots of anterior supra-alars, distinctly 

 longer than presutural, almost always parallel; pre- 

 scutellars jnst before level of inner posteiior sui)ra-alars, 

 distinctl}' shorter tlian latter, almost always sligiitly 

 directed inward; scutellars only one basal pair, longest 

 of all thoracic bristles, almost always parallel; meso- 

 pleural one, rather long, below which there are yel- 

 low isli-white bristly hairs; pteropleural yellow isli 

 white, almost always directed hindward; sternopleural 

 directed superoposteriorly. 



Abdomen (pi. 2.5, fig. 9) as long as, or a little shorter 

 than thorax, shining black, black pubescent, and very 

 slightly greyish tomentose; fifth tergum as long as 

 precedmg, posterior margin almost always with two 

 pairs conspicuously long black bristly hairs; genitalia 

 l)lack, basal segment with one pair of conspicuously 

 long and curved black bristles, appendages more or 

 less browniish. 



Wing (pi. 25, fig. 1) longer than body, nearly 3.2 

 times as long as wide, brownish black, with about 

 one-fourth of basal portion wdiitish subhyaline, its 

 outer margin extended from beyond midille of second 

 costal cell to basal thu-d of anal lobe; white sidjhyalme 

 spots as follows; four costal indentations, the basal at 

 apex of second costal cell and extends to R2+3, three 

 remaining in R,, the first often triangular, the second 

 largest and extending into middle of R3, the thii'd 

 smallest; two apical spots, one in R3, the other in R5, 

 both connected to each other, tlie anterior smaller 

 and extending only to posterior haK of apex of Rn, 

 posterior occupying the entu'e apex of R5. Five spots 

 along posterior margin, the two apical situated at 

 basal half 2M2, both nearly attaining m; the middle 

 (smallest) near tip of Cu; the two remaining spots 

 broad, one immediately before middle of apex of Cu 

 quite rovmd, occupying nearly the entke width, the 

 other at tip of anal lobe extending to Cu. In mickile 

 portion of wing three slots, a round one in R5 just 



above in-cu, a similar but smaller one at posterior 

 angle of IM2, and remaining one on m before r-m. 

 In addition a small spot at l)ase of Cu, connected 

 with basal subhyaline portion. Halteres and scjuamulae 

 light dh'ty yellow. 



Legs yellow, blackish i)ubescent. Foreleg (pi. 25, 

 fig. 11) shortest of all legs; femur very slightly longer 

 than tibia, dorsal surface with two rows of long bristly 

 hairs, externoventral margin with about five long 

 bristly hairs; tibia as long as tarsus; first tarsal segment 

 very slightly shorter than four following segments 

 together, brushlike bristles on ventral surface yellowish 

 and as long as pubescence on dorsal surface. Midleg 

 (pi. 25, fig. 12) a little longer than hindleg; fenua- dis- 

 tinctly shorter than tibia, externoventral margin with 

 a few black long bristly liairs; tibia distinctly longer 

 than tarsus, with a black a[)ical spur, and two very 

 short black bristles at apex; first tarsal segment shorter 

 than four following segments together, brushlike 

 bristles on ventral surface rather short, sparse, and 

 blackish. Hindleg (pi. 25, fig. 13) somewhat thicker 

 than others; femur longer than tibia, near dorsal apex 

 with one or two pah's of short black bristly hau-s; 

 tibia as long as tarsus, moderately curved near base; 

 first tarsal segment nearly as long as three following 

 segments together, brushlike bristles on ventral surface 

 as hi midtarsus. 



Length: Body 2.4-2.6 mm, wing 2.6-3.2 mm. 



Female. — Quite similar to male. Abdomen (pi. 25, 

 fig. 10) (without ovipositor) almost always as long as 

 thorax; sixth tergum very slightly shorter than, or as 

 long as fifth, posterior niargui with two or three jiaire 

 of conspicuously long black bristly hairs; basal segment 

 of ovipositor longer than the three preceding terga 

 together, shining black, very fine pubescent, with dis- 

 tinct lateral margin; second segment brownish yellow; 

 ovipositor yellow, the tip needle-like. 



Length: Body (witliout ovipositor) 2.2-3 mm, 

 wing 2.5-3.2 mm. 



Material ex.\mined. — Ishigaki Is.: cf, 9, Feb. 26; 

 Okhiawa Is.: 23cf , Mar. 27-Apr. 23, 14 9. Mar. 18-Ai)r. 

 23; Miyako Is.: 2 9, Mar. 7, 8. 



Distribution. — India, Australia, Formosa. Ryukyu 

 Islands. 



Genus Paroxyna Hendel 



Paroxijnn Hendel, 1927, p. 14G.— Shiniki, X'xn, p. 404.— Zia, 

 19:37, p. 199. 



Paroxynu niatsiimotoi, new species 



Plate 26 



Allied to Paroxijna loevnana Hendel (1927, p. 154, 

 pi. 10, fig. 9), but at once distinguished by two apical 



2li.1-B45 — lis- 



