XIV. 5 Uichanco: Philippine Plant Galls 537 
meters. August, 1917. Type gall No. 18147, College of Agri- 
culture collection. 
These galls were very abundant at the altitudes cited. The 
deformation is confined to the younger, subterminal leaves. 
Present during the greater part of the year. 
Cissus adnata Wall. var. Vitaceae. 
Leaf galls caused by Hyperdiplosis banksi Felt. 
Monothalamous ; subconical; concolorous with leaf; slightly 
incurved basad; slightly curved subapically laterad; thickly but 
briefly pubescent. At base, on opposite surface of leaf, gall 
continued into a slightly raised, broadly subconical structure. 
Wall thick ; succulent. Chamber subcylindrical, concave at base ; 
broader apicad ; a thin membranous cover at one-third the length 
of chamber from apex; inner wall of chamber beneath cover, 
smooth; above, lined with a thick mat of long hair. Opening 
apical. 
Length, 11 millimeters; diameter at base, 5.5; mean diameter 
of chamber, 0.5. 
On nether surface of leaf ; rarely on upper surface. 
Luzon, Laguna, Los Banos Falls, near Los Banos, at an 
altitude of about 50 meters. Type gall No. 18306, College of 
Agriculture collection. 
Very numerous on two isolated plants at the place cited; not 
found elsewhere. 
Cissus trifolia (L.) K. Sch. Vitacese. 
Stem galls caused by Asphondylia vitea Felt. 
Polythalamous ; very irregularly subfusiform or subellipsoid; 
unevenly tuberculated ; consisting of enlargements at various 
parts of stem; concolorous with, and equally as pubescent as, 
the normal parts of the stem; succulent. Chambers subellip- 
soid; embedded irregularly within the succulent tissues of the 
gall; walls of chambers thin, more or less ligneous. Opening, 
an irregular tunnel made by the emerging midges through the 
gall tissues; without process. 
Length, 15 to 60 millimeters ; diameter, about 10. 
Luzon, Laguna, College of Agriculture, Los Banos, at alti- 
tudes of from 45 to 100 meters. August, 1917. Type gall No. 
18342, College of Agriculture collection. 
These galls were abundant from August to December, 1917, 
at the altitudes given above. As many as thirty insects have 
been found to inhabit one gall. 
3 
