548 Philippine Journal of Science 1919 
nonpubescent. Wall thicker than leaf lamina; slightly rugose 
on both outer and inner surfaces. Opening, a longitudinal slit 
on nether surface. 
Length, 60 millimeters; height, 5.5; thickness, 1.75. 
On the upper surface of the leaf; solitary. 
Luzon, Mount Maquiling, at an altitude of about 150 meters. 
March 16, 1918. Type gall No. 18402, College of Agriculture 
collection. 
Apparently rare. 
Mallotus philippensis (Lam.) Muell.-Arg. Euphorbiacee. 
Leaf galls caused by Neoheegeria mendax Karny.™ 
Terminal and subterminal leaves with lamine irregularly 
connivent superiorly; much wrinkled and aborted. Folds pro- 
duced by wrinkles, pale lettuce green. Insects found between 
the apposing leaf blades. 
Average length (wrinkled), 20 millimeters. 
Luzon, Laguna, College of Agriculture, Los Bajios, at an al- 
titude of about 47 meters. January, 1918. Gall No. 18175, 
College of Agriculture collection. 
Fairly common. 
Piper loheri C. DC. Piperacez. 
Leaf galls caused by Gynaikothrips chavice Zimmerman.* 
Irregular, roughened, pale greenish white depressions through 
leaf lamina, the concavity being on the upper surface; a corre- 
sponding convex portion on nether surface of leaf. Depressions 
more numerous submarginally apicad, and the margins at this 
portion of leaf involuted soit lind Thrips found in depres- 
sions of younger leaves. 
Average diameter of depressions, 2 millimeters. 
Luzon, Laguna, College of Agriculture, Los Bafios, at altitudes 
of 45 to 100 meters. October, 1917. Gall No. 18160, College 
of Agriculture collection. 
Galls very common throughout the year. 
* Gall and insect previously described from Java. See Karny, Gallen- 
'bewohnende Thysanopteren aus Java, Marcellia 11 (1912) 122. Karny and 
Leeuwen-Reijnvaan, Uber die javanischen Thysanopteren und deren Be- 
wohner, Bull. Jard. Bot. Buitenzorg II 10 (1918) 10 and 64. 
* Previously reported from Java, Sumatra, and Celebes by Leeuwen- 
Reijnvaan as making galls on other species of Piper. See Marcellia 8 
(1909) 113; Bull. Jard. Bot. Buitenzorg 10 (1913) 17, 21 (1916) 17 and 38. 
XN 
