2 



UMTKD STATKS NATIONAL MUSKUM BULLETIN 203 



h. Vein m-cu not borrlorod with brown, costnl liaiui of 

 wins distinct, :uuil streak distinctly attaining 

 posterior margin. 



Strumeta dorsalis okinawana (Shiraki) 

 c. Vein ni-cu not bordered with brown, costal l)and of 

 wing distinct only at apex, anal streak only along 

 inferior prolongation of anal cell. 



Strumeta asatoi, new species 

 Third abdominal ternnni of male not ciliate. 



C!en>is Gymnodacus Mviuro 

 Very ininnl<- occUar bristles present: wing of male with- 

 out superniunerary lobe. 



Gymnodacus kuniyoshii, new species 



6. Prescntellar bristles absent. . . Genus Paradacus Perkins 



Rather large yellowish brown .species; wiiii; with distinct 



costal hand, anal streak, apical spot, and a large but 



faint spot at inferior corner of IM- : male with super- 



numeniry lobe: third abdnniinal tergnm ciliated. 



Paradacus deprcssus (Shiraki) 



Prescntellar bristles present 7 



7. Third abdominal tergum of male ciliate: wint; (if male with 



snperiunnerary lobe . . . Genus Zeugodacus Hendel 



a. \\ ing with a blackish .spot on r-ni. 



Zeugodacus ishigakiensis, new species 



b. Wing without spot on r-m. 



Zeugodacus scutellatus Hendel 

 Third abdominal tergum of mal<' nut ciliate; wing of male 

 without supernumerary lobe. 



Genus Paratridacus .Shiraki 

 Wing with distinct costal band and anal streak; mesono- 

 tum with yellow lateral postsutura! ealli. 



Paratridacus expandens (Walker) 



8. Wing conspicuou.sly incised at apex of subcosta. at which 



point there are strong costal .spines; middle of upper 

 surface of disk with blackish or reddish rounded ele- 

 vations ("bullae"); frons with a pair of strong bristles 

 ("preocellars") in front of ocellars. 



Subfamily Schistopterinae 

 Ocellars and preocellars very strong, obtuse, whitish; 

 ni strongly undulate, r-m at middle of IM;, m-cu 

 oblitjue, apical margin of anal cell straight. 



Genus Rhabdochaeta de Meijere 

 Two pairs scutellar bristles, the \ipper two pairs of 

 inferior front o-orbitals never swordlike; rays of 

 wing pattern simple. 



Rhabdochaeta asteria Hendel 



Wing not strongly incised at end of subcosta, with ordy one 



or two weak costal spines rather similar in size to costal 



bristles, without "bullae"; frons without preocellars. 9 



9. Apical margin of anal cell straight or convex; R^s not 



bristled; one or rarely two superior fronto-orbital 



bristles Subfamily Euribiinac: 10 



Apical margin of anal cell angulate, inferior angle pointed; 

 or more than one pair of superior fronto-orbitals, or 



Ri^5 bristled 11 



10. Dorsocent rals slightly before level of anterior supra-alars; 



wing rather narrow and long, not distinctly narrowed 



at apex; two or more pairs of scutellar bristles; two 



superior fronto-orbitals . . Genus Elaphromyia Bigot 



Wing dark brown, posterior border with numerous 



subhyaline spots. 



Elaphromyia incomplcta punctata, new subspecies 



Dorsocentrals immediately behind suture, far in front of 

 the level of anterior supra-alars; only one pair scutel- 

 lars; one superior fronto-orbital. 



Gemis Actinoptera Kondani 



Basal half of wing hyaline, remainder blaeki.sh with 



hy.iline spots; third antennal segment i)ointed at 



dorsal apex . . Actinoptera trypaneoides, new species 



11. Occipital bristles thin, almost black; dorsocentrals always 



behind suture; mesopleuron with distinct vertical 

 suture before po.sterior margin; distinctly inferior 



angle of anal cell produced 18 



Occipital bristles thick, obtuse, mostly yellowish, rarely 

 black and pointed; vertical suture of mesopleuron 

 poorly developed; last abdominal tergum of female 

 not shorter than preceding; inferior prolongation of 

 anal cell not developed . . Subfamily Tephrilinae: 12 



12. Head nearly as high as long. 



Genus Ensina Roliineau-Desvoidy 



a. Wing almost hyaline, with a fi-w faint liandlike 



spots Ensina sonchi (Liinn5) 



b. Wing more or less brownish, with many hyaline .spots. 



Ensina sororcula (Wiedemann) 

 Head distinctly higher than long 13 



13. Dorsocentrals slightly behind level of anterior sujjra-alars; 



proboscis elongate and geniculate. 



Genus Sphenella Robineau-Desvoidy 

 Two fruiito-orbitals, inner occipital present; frons dis- 

 tinctly pubescent at middle; wing with bandlike 



pattern Sphenella indica Schiner 



Dorsocentrals slightly behind suture, far ahead of level of 

 anterior supra-alars 14 



14. Sciitellum almost always with four bristles !■') 



Scutellum almost always with two bristles, the apical pair 



wanting 17 



15. Three inferior fronto-orbitals . . Genus Protephrltis Shiraki 



Frons sparsely pubescent; inner oceipitals present; wing 

 rather oval, black, with eleven hyaline marginal 



spots Protephritis assimills, new species 



Two inferior fronto-orbitals 16 



16. Third antennal segment rounded at apex; frontal and 



facial orbits broad Genus Euaresta Loew 



Mesonotum and abdominal terga with paired dark spots. 



Euaresta punctata, new species 



Third antennal segment strongly narrowed at dorsal apex; 



facial orbits narrow Genus Paroxyna Hendel 



a. Hyaline spots of wing large; mesonotum and abdo- 



men without spots. 



Paroxyna iriomotensis, new species 



b. Hyaline spots of wing small and well defined; 



mesonotum and abdomen with small brownish 

 spots .... Paroxyna matsumotol, new species 



17. Abdomen densely greyish tomentose; wing narrowed 



apically. with star-shaped apical pattern. 



Genus Trupanea Guettard 

 Wing pattern with five rays toward posterior margin, 

 the inner not attaining margin; Cu with a small 

 dark spot at middl". 



Trupanea okinawaensis, new species 

 Abdomen .shining black, very slightlj- tomentose; wing 

 rather broad apically, black with hyaline spots, the 

 basal portion distinctly hya'ine. 



Genus Spathulina Rondatii 



