xiii, D, 6 Felt: New Philippine Gall Midges 309 



c^ Terminal clasp segment of the male bidentate. 

 .d\ Subcostal cell remarkably broad, a rudimentary vein spur at 



the base of subcosta Zalepidota Riibs. 



d^. Subcostal cell not remarkably broad, no rudimentary vein spur 

 at the base of subcosta; terminal clasp segment with greatly 



produced, tapering spurs or horns Diceromyia gen. nov. 



o*. Ovipositor exserted, apicad with lobes or triangular plates; terminal 

 clasp segment of the male usually serrate apicad. 

 d\ Palpi quadriarticulate. 



c\ Terminal clasp segment of the male subapical; third and fourth 

 antennal segments not fused, the circumfila coarsely reticulate 

 in the male, the pulvilli longer than the claws. 



Polysteplia Kieff. 

 c\ Terminal clasp segment of the male apical; third and fourth an- 

 tennal segments fused, the circumfila usually with many fine 

 reticulations in the male, the pulvilli usually shorter than the 



claws Cincticornla Felt. 



i>^ Palpi triarticulate. 



c*. Terminal clasp segment of the male serrate apicad. 



(P. Circumfila of male coarse, very irregular, 4 or 5 transverse 

 fila to a segment, the plates of the ovipositor triangular. 



Feltomyia Kieff.* 

 d\ Circumfila of male fine, about 18 transverse fila to a segment, 

 the terminal lobes of the ovipositor roundly quadrate. 



Eocinctlcornia Felt. 

 c\ Terminal clasp segment of the male bidentate, subapical, the ovi- 

 positor conical Daphnepliila Kieff. 



6^ Palpi uniarticulate; flagellate antennal segments subsessile; abdo- 

 men with caducous scales, the short ovipositor biarticulate. 



Ozobia Tav. 



ITONIDIDINARI>E 



Skeleton key to the genera. 



BIFILI 



u\ Flagellate antennal segments of the male all binodose (p. 310). 



a^. Some of the flagellate antennal segments of the male cylindrical (p. 311) . 



TRIFILI 



a^. Claws toothed on all the legs (p. 312) . 



6\ Palpi quadriarticulate (p. 312). 



6*. Palpi triarticulate, uniarticulate (p. 314). 

 a^ Claws on the anterior legs (and sometimes middle legs) toothed (p. 315). 



fc'. Palpi quadriarticulate (p. 315). 



c*. Circumfila greatly produced (p. 315). 

 c". Circumfila regular (p. 315) . 



fe^ Palpi triarticulate (p. 316). 

 a"". Claws all simple (p. 316). 



6'. Palpi quadriarticulate (p. 316). 



* Judging from larval characters, this genus is closely related to and 

 may possibly be a synonym of Uleella Riibsaamen. 



