XIV, 5 Uichanco: Philippine Plant Galls 545 
Galls common in the place cited; not found on the same 
plant elsewhere in Los Bafios. Adults found only on March 
11, 1918, after about one year’s occasional observation on the 
nymphs within the galls. 
Ficus nervosa Heyne. Moracee. 
Leaf galls caused by Dinopsylla cornuta Crawford. 
Fresh galls of these insects have never been obtained by 
me. A single infested leaf that had fallen from the tree was 
found; but the galls were too badly mutilated and shriveled 
up to furnish adequate material for description. Prof. C. F. 
Baker had previously bred this Dinopsylla from the same galls, 
and is my authority for the identity of the insect and its work. 
Ficus nervosa Hey. is fairly common in Mount Maquiling, at 
altitudes of 100 to 150 meters. 
Ficus ulmifolia Lam. Moraces. 
Leaf galls No. 1, caused by Pauropsylla deflexa sp. nov. (MS). 
Monothalamous; very abruptly and irregularly subconical; 
lettuce green, lighter in color than leaf; pubescent, more 
thickly so than leaf. Apex usually obtuse; sometimes abruptly 
pointed. Bottom, at opposite side of leaf, subhemispherical; 
concolorous with and equally as pubescent as the rest of the 
gall. Chamber elongately subellipsoid; lining smooth. Wall 
thick; ‘succulent. Opening apical; not visible until adults are 
ready to emerge; then wall splits open longitudinally from 
-apex subbasad into several irregular lobes; each lobe deflected 
ectad. 
Average length, 6 millimeters; diameter, 5; length of cham- 
ber, 3.5; diameter, 1.25. 
Subconical portion on nether surface of leaf; subhemispher- 
ical, on upper surface. Usually aggregate and fused together, 
giving appearance of polythalamous galls. 
‘Luzon, Laguna, College of Agriculture, Los Bafios, at an 
altitude of about 42 meters. January, 1917. Type gall No. 
18309, College of Agriculture collection. 
These galls are very common, but the adults are very dif- 
ficult to breed. The leaves dry in less than half a day after 
removal from the tree. Numerous adult psyllids emerged from 
galls on a small Ficus tree in the nursery of the college, and 
were collected from the young shoots, up which the insects had 
crawled to feed. 
