540 
Philippine Journal of Science 
1919 
t 
These galls are apparently abundant during the greater part 
of the year, especially toward the close of the rainy season. 
Mallotus laoluccana (L.) Muell.-Arg. Euphorbiaceae. 
Leaf galls. Adult midges not collected. 
Monothalamous ; subconical; irregularly ribbed longitudinally; 
sparsely pubescent ; light apple green, somewhat paler than leaf. 
Apex usually obtuse; sometimes produced to a. tapering point. 
A slender projection generally present at opposite surface of 
leaf. Wall moderately and irregularly thick ; succulent. Cham- 
ber conforming with general shape of gall. Opening small, 
circular; located at one side of the gall basad. 
Average length, 10 millimeters; diameter, 3. 
On the nether surface of the leaf ; numerous. 
Luzon, Laguna, College of Agriculture, Los Banos, at alti- 
tudes of 45 to 60 meters. March to September, 1917. Type 
gall No. 18312, College of Agi’iculture collection. 
These galls are fairly abundant. Attempts at breeding the 
causal midges resulted, in all cases, in securing the chalcid 
parasites only. The causal larvae found within the galls were 
typically itonidid larvae; in all the specimens examined the 
spathula sterni was present. They were invariably parasitized. 
Memecylon paniculatum Jack. Melastomataceae. 
Fruit galls. Adult midge not collected. 
Infested fruit of irregular shape; more or less compressed 
proximodistad ; pale greenish white, with a slight tinge of 
yellow; interior yellowish white; succulent. Chambers ellip- 
soid ; numerous ; irregularly arranged subcentrad ; walls of cham- 
bers ligneous. 
Average diameter of infested fruit, 16 millimeters. 
Luzon, Mount Maquiling, at altitudes of 150 to 500 meters 
(Mabesa). October 15, 1917. Type gall No. 18169, College of 
Agriculture collection. 
Rare. 
Psederia tomentosa Blume. Rubiaceas. 
Leaf galls caused by Itonida psederix Felt. 
Gall consists of a superior longitudinal infolding of both mar- 
gins of leaf blade, with a consequent upward curvature of the 
affected leaf. Abnormal parts extending from base to about 
one-sixth of the leaf length from apex; the margins touch each 
other tangentially at sides along midrib. Apical and subapical 
