320 The Philippine Journal of Science i9is 



i". Lobes of the ventral plate not linear and parallel. 

 f. Dorsal plate deeply incised, the lobes narrowly 

 rounded, the terminal clasp segment with a broadly 



chitinized, serrate margin Paradiplosis Felt. 



]'. Dorsal plate not incised or very narrowly emar- 



ginate. 



k^. Genitalia large, with a length one-fourth that of 



the abdomen; ventral-plate lobes slender and 



diverging; ovipositor short and with subtri- 



angular lobes Pleslodiplosis KiefF. 



k\ Genitalia smaller, ovipositor not as described 

 above, 

 r. Terminal clasp segment large, swollen near the 

 middle and hairy; ovipositor long, with short 

 hairs and short-haired lobes. 



Plemeliella Seitn. 

 I'. Terminal clasp segment with a length one-half 

 that of the basal clasp segment and slightly 

 tapering; ovipositor conical and with a length 

 twice its basal diameter.. Pachydiplosis Kieflf. 

 f. Terminal clasp segment as long or nearly as long 

 as the basal clasp segment and smooth; 

 ovipositor moderately long and with lobes. 



Itonida Meig. 

 g'. Genera known only as females. * 



h^. Cross vein present and well developed; pulvilli one-half 

 as long as the claws; ovipositor small, produced. 



Liebliola Kieff. and Jorg.t 

 h'. Cross vein not well developed. 



i*. Ovipositor several times the length of the body; pul- 

 villi less than one-half the length of the claws. 



Xylodiplosis Kieff. 

 i". Ovipositor as long as the body, the latter covered with 



scales; pulvilli rudimentary lepidodiplosis Kieff. 



P. Ovipositor short; pulvilli rudimentary. 



Chaetodiplosis Kielf. 

 i\ Ovipositor short, the terminal lobes slender and with 

 a length nearly equal to a body segment. 



Ouradiplosis Felt. 

 b-. Palpi triarticulate. 



c'. Circumfila with short bows or loops, their length being one-half the 

 diameter of the enlargement or less. 

 d\ Thorax plainly extending over and concealing the head, at least 

 to a considerable extent. 

 e\ Male with 23 antennal segments, female wth 14; the last 

 or several of the distal segments in the male simple. 



Hormomyia H. Lw. 



e'. Male with 36 antennal segments; flagellate segments all binodose 



and the stems short Proshormomyia Kieff. 



"? * Location provisional. 



t Probably referable to the Porricondylariae. 



