542 Philippine Journal of Science isia 
Monothalamous ; spherical; concolorous with leaf; somewhat 
thickly pubescent. Wall moderately thick; coriaceous. Cham- 
ber conforming with the general shape of the gall. 
Average diameter, 2.5 millimeters. 
On the nether surface of the leaf; submarginal, along prin- 
cipal lateral nervules. 
Luzon, Mount Maquiling, at altitudes of 150 to 500 meters. 
September, 1917, and March, 1918. Type gall No. 18156, Col- 
lege of Agriculture collection. 
Galls fairly common. Adult midges could not be obtained, 
as the leaves and the galls dry up very quickly when removed 
from the plant. 
Siphonodon celastrineus Griff. Celastraceae. 
Leaf galls caused by Kamptodiplosis rediicta Felt. 
Monothalamous; subdiscoid. On upper surface of leaf, as 
an irregular, raised, subcircular spot, with the leaf cuticle 
forced open bordering the circumference ; dark yellowish brown, 
more deeply so centrad. On nether surface of leaf, as irreg- 
ularly raised papules, somewhat paler than leaf; border dif- 
fused ectad. Wall thick, ligneous. Chamber discoid. Opening 
circular, located centrally on the upper surface of the leaf. 
Diameter on upper surface, 2.25 millimeters; on nether sur- 
face, 4.5; diameter of opening, 0.5 millimeter. 
Luzon, Laguna, Balong Bulo Hill, near College of Agricul- 
ture, Los Banos, at an altitude of about 60 meters. March, 
1917. Type gall No. 18319, College of Agriculture collection. 
These galls were found on a single isolated tree. The same 
tree was visited a year later, and all the galls had disappeared. 
A search made in other places failed to disclose these galls on 
plants of the same species. 
Spatholobus gyroearpus (Wall.) Benth. Leguminosess. 
Leaf galls caused by Heliodiplosis spatholobi Felt. 
Monothalamous ; abruptly and irregularly subconical ; rugose ; 
somewhat paler green than leaf ; sparsely and briefly pubescent. 
On nether surface of leaf, subcircular; covered with a dense 
mat of light green to brown hair. Apex produced in a taper- 
ing projection, inclining over on one side. Wall slightly lig- 
neous; thick. Chamber small; discoid. Opening a small, 
needle-hole-like aperture on nether surface of leaf. 
Length of gall, 1.25 to 1.5 millimeters; diameter at base, 3 
to 3.5. 
