XIII, D, 6 Felt: New Philippine Gall Midges 293 



Mesonotum yellowish brown, scutellum and postscutellum yel- 

 lowish, transparent. Abdomen pale yellowish, sparsely haired. 

 Wings hyaline, long, narrow, with a length two and one-half 

 times the width ; subcosta uniting with costa near basal fourth ; 

 third vein curved distad, joining margin well beyond apex ; fifth 

 vein uniting with posterior margin at distal fourth, its branch 

 near basal half. Halteres yellowish, transparent. Coxae and 

 femora mostly pale yellowish, tibise and tarsi pale straw. Claws 

 wanting. Genitalia : Basal clasp segment moderately long, stout ; 

 terminal clasp segment long, stout, tapering, evenly curved; 

 dorsal plate moderately long, broad, deeply and triangularly 

 emarginate, the lobes sparsely setose and tapering to a narrowly 

 rounded apex; ventral plate moderately long, broad, deeply and 

 roundly emarginate, the lobes irregularly truncate and sparsely 

 setose; style long, stout, narrowly rounded apicad. 



Type. — Cecid. a2852a, New York State collection. 



Luzon, Laguna, Balong Bulo Hill, near Los Barios, 1917, Col- 

 lege of Agriculture accession No. 18389 (Uichanco) . The one 

 male described was reared in association with the unique Kamp- 

 todiplosis reducta Felt from leaf galls on Siphonodon celastri- 

 neus Griff. The generic reference is tentative. This species, 

 like its German congener P. ranunculi Kieff.,' is quite possibly 

 a predaceous inhabitant of other galls. 



Tricontarinia luzonensis sp. nov. 



Male. — Length, 1 millimeter. Antennae one-half longer than 

 body, light brown, thickly haired ; 14 segments, third and fourth 

 segments fused; fourth with stems each with a length twice 

 their diameter, enlargements subglobose, the basal with a sparse 

 whorl of moderately stout setae and a circumfilum, the loops 

 of the latter extending to base of slightly prolonged distal en- 

 largement, which has subbasal and subapical circumfila, the loops 

 of latter extending to apex of segment and a median whorl of 

 moderately stout setas. First segment of palpi subquadrate, 

 second with a length about three times its diameter, third about 

 as long as second. Mesonotum shining dark brown. Scutellum 

 and postscutellum reddish brown. Abdomen yellowish brown. 

 Wings hyaline, third vein uniting with margin just before apex, 

 fifth at distal third, its branch near basal half. Halteres whit- 

 ish. Coxae yellowish. Femora mostly whitish. Tibiae and tarsi 

 dark brown. Genitalia: Basal clasp segment moderately long, 



»Gen. Ins, Fasc. 152 (1913), 195. 



