14 



rXrTF.D STATES NATIONAL MUSEUM RUM.ETIX 2 3 



propleiirun and luesopleural, slcniopleunil and iiieiji- 

 pleural spots, yell()\visli. All bristles l)Iack: scapular 

 two pairs, of winch tlic outer is longer tlian inner; 

 Ininieral 1, weak, paler; iiotopleural 2, distinct; su])ra- 

 alar .'i, two of wliicii are posterior; scutellar two pairs, 

 the ajjical pair distinctly longer than the l)asal; ineso- 

 ])leural 1 , sternoi)leural and pleropleui-al wanting. 



Aixlonien (pi. 5. lig. 7) a lillle longer and broader 

 tlum tlie thorax, reddisli brown. oi)scured l)y a yellowish 

 pubescence; second terguin broadest and longest, fifth 

 terguin as long as the second; second tergmn with a 

 narrow short black transverse band near anterior mar- 

 gin, lateral margins narrowly black; third tergum with 

 a black anterior marginal band; fourth and fifth terga 

 witli black lateral transverse s])ots along anterior mar- 

 gins; tlie black narrow median longitudinal sti'eak from 

 anterior margin of tiiird tergum to jjosterior mai'gin of 

 fiftii tergum intei'ru])ted at the posterior one-third of 

 third tergum; bristles of ciliation of third tergum black- 

 ish jjidwn; underside yellowish, with tlie last three 

 sterna blackisli; genitalia small, l)lackish with yellowish 

 clas])ers. 



Wings (pi. o, fig. 1) comparatively large, somewhat 

 triangular, anal lobe relatively narrow, supernumerary 

 lobe rather small; R4+5 slightly undulate, bi-istled from 

 base to a])ical one-fourth, bristles on apicid portion 

 ratlier sparse and directed anteriorly; piolongation of 

 anal cell very long and slender, conspicuously longer 

 than the cell pro|)er; jitei'ostigma and Ri blackisli 

 brown, this color extending to michlle of mouth of K5 

 along the costa. forming a costal band which is mn- 

 spicuously widened at tip so that it forms a distinct 

 round a[)ical spot; anal streak moderate in width and 

 very distinct, nearly reaching the wing-margin; pos- 

 terior corner of lAf2 infuscated; R3 somewliat yellow- 

 ish along the R213. 



Legs light yellow, ('oxae, trochanters, and tibiae of 

 liindlegs somewhat blackish brown; apical segments of 

 tarsi slightly brownish; spur of the mitltibiae and claws 

 blackish. J^-ont legs (pi. 5, fig. 10) conspicuously 

 shorter than midleg; femora slightly shorter than tibia, 

 dorsal surface with some long black fine bristly hau-s, 

 ventral surface with yellowish hairs; til)iae distinctly 

 thickened toward apex, covered with yellowish hairs 

 which on inner surface are very short; tarsi about as 

 long as tibia, the first segment as long as the four fol- 

 lowing segments together, the internovenlral surface 

 with yellowish bristly hairs, the four apical segments 

 with black hairs on the dorso-apioal portion. Midlegs 

 (pi. 5, fig. 11) as long as hind pair; femora as long as 

 the tibia, covered witb a yellowish pubescence which 

 becomes somewhat longer on the ventral surface; tibiae 

 distinctly lf)nger than tarsus, covered with yellowish 



[jubescence, a|)ical spur as long as width of apex; tarsi 

 i-ather slender, tlie first segment longer tliaii the four 

 following segments together. Hindlegs (pi. .5, fig. 12) 

 rather slender; femora distmctly longer than tibia, 

 with long brown bristly hairs on about apical li.iif of 

 dorsal surface and with yellowish rather spaix' hairs 

 on ventral surface; liljiae conspicuously narrow at 

 basal one-fourth, brownish pubescent, brusli-])atcli near 

 apex of interno(h)rsal surface distinct but rathei' --iiiall; 

 tarsi very sliglitly sliorter llian tibia, yellowisli ])ubes- 

 cent, dorsal sui'face of the apical segments with some 

 l)iack liairs, the first segment distinctly longer tlian tiie 

 following segments together. 



Length: Body 10 mm, wing 9.5 mm. 



Female. — Similar to male, but l)lack poi-tioiis of IkkIs 

 sometimes smaller; inferior fronto-orbital bristles some- 

 times four, of wliich lower three are jjlaced closely 

 together; tiie su))ermimerarv lol)e of wings iiotr dexel- 

 o])ed, prolongation of anal cell nearly as long as the 

 cell jiroper; brislle-ciliation of third tergite never 

 developed; ovipositor with a long flat (sometmies some- 

 what cylindrical) basal segment which is longei' than 

 the two last abdominal terga, yellowish brown. 



Length: Body (without ovi])ositor) 11-12 mm, 

 wing S-9.5 mm. 



Mateul\l examined. — One male and four females 

 collected by the author, at Yuwan in Amami-Oshima 

 Is., May 1953; one female, by Mr. T. Edashige, at 

 Shin-Mura, Amami-Oshima Is. 



RiOMAKKS. — This S])ecies is injuring the scpiashes in 

 Japan and Formosa. In the Amami-Oshima Island it 

 is found in the mountainous district where there are 

 no Cucurbit aca(\ 



Genus I'iimliidaciis Shiraki 



Paratridnnis Sliiniki, l'.);i;i, vol. S, [). 10!). 



I'tiriilriilariis iwiximh'iis (W alkci) 



Platk () 



Dacvs expandens Wallvcr, ISoila, p. 114. 

 Baclrocera garciniae Bczzi, 1913, p. 97. 



Dacus yayeijanmri IIS Matsunuira, 1910, p. 412; pi. 23, lifj. lU, 

 Parairidaciis yiiyri/atnariiis (Matsuinura). — Shiraki, 1933, p. I lU; 

 fig. 29.; pi. 3, lis- 4. 



A rather large, brownish species. 



Male. — Head a little longer than half the width, or 

 about 1.3 times as high as long. Frons (pi. (1, fig. 3) 

 dirty yellowish, com]5aratively narrow, narrower than 

 eye width, very slightly broadened anteriorly with 

 straight lateral margins, hardly concave, anterior half 

 somewhat elevated, covered with rather sparse very 

 minute brown setae which are somewhat conspicuous 



