XIII, D, 6 Felt: New Philippine Gall Midges 323 



y. Circumfila apparently doubled in both sexes; third vein 

 uniting with the margin at the apex of the wing; pulvilli 

 as long as the claws; ovipositor short, with three lobes. 



Dichrona Riibs. 



/'. Circumfila not apparently doubled, low and with eight to ten 



small bows; third vein uniting with the margin beyond 



the apex of the wing ; ovipositor large, conical and with two 



long lobes; male unknown Perodiplosis KiefF. 



e^ Thorax produced over the head. 



f. Circumfila not apparently doubled in the female; third vein 

 uniting with the margin beyond the apex of the wing; 

 pulvilli about one-half the length of the claws. 



Dishormomyia Kieff. 

 d^ Circumfila long or at least moderately long. 



e'. One or more basal antennal segments with an eccentric develop- 

 ment or tooth. 

 /'. Second antennal segment with a large lateral and oblique 

 conical process; thorax produced as a cone in front but not 



covering the head Conodiplosis Kieff. and Jorg. 



/". Second antennal segment prolonged ventrally as an obtuse 



lobe Neurodiplosis Kieff. 



f. The stem of the first flagellate antennal segment of the male 

 with a lateral tooth near its middle; dorsal plate narrowly 

 incised, ventral plate longer and rounded apicad. 



Orseolia Kieff. and Mass. 



e". Basal antennal segments without eccentric development or 



processes. 



/\ Dorsal plate broad, broadly and roundly emarginate; ventral 



plate broad, triangular and slightly emarginate; ovipositor 



short, with two large, oval lobes bearing transverse rows 



of obtuse spines apicad Braueriella Kieff. 



/". Dorsal plate with the lobes obtusely truncate; ventral plate 

 longer, linear, deeply and roundly emarginate; ovipositor 



short and with two lanceolate lobes Compsodiplosis Tav. 



f. Dorsal plate triangularly divided; ventral plate long, broad, 

 roundly and slightly emarginate; style longer, rounded 

 apically and the lateral margin strongly chitinized; ovipos- 

 itor long, with two lanceolate lobes Massalongia Kieff. 



/*. Male unknown. 



g^. Ovipositor short, with a chitinized falciform blade. 



Jorgensenia Kieff. 

 g'. Ovipositor moderately short, the two lobes elongate. 



Courteia Kieff. 

 c^ Wings marked with yellow and fuscous. 



d'. Fifth antennal segment with a stem one-half the length of the 



basal enlargement, which has a length four times its diameter; 



third and fourth segments free; third vein joins the margin 



beyond the apex of the wing; ovipositor short, the lobes 



angulate Scopodiplosis Felt. 



b*. Palpi uniarticulate. 



c'. Circumfila apparently doubled in the male and female. 



d'. Pulvilli as long as the claws; ovipositor short and with three 



lobes Dichrona Riibs. 



