NEW PHILIPPINE GALL MIDGES 
By E. P. Felt 
{State Entomologist, Albany, New York) 
This paper is supplemental to an earlier one ; ^ it not only de- 
scribes and records the food habits of a number of Philippine 
gall midges, but also establishes the occurrence in the eastern 
tropics of Ctenodactylomyia Felt or a closely related genus, 
previously known only in subtropical America. This was to be 
expected, since studies on distribution show that certain sub- 
tropical genera have a range which would suggest their probable 
occurrence in all warmer climates where food plants permit 
their existence. This record is analogous to the discovery of 
species of the genus Aplonyx in such widely separated parts of 
the world as the Mediterranean region and the vicinity of Salt 
Lake, Utah — localities apparently agreeable to the host plants 
as well as to the insects. 
This collection, like the preceding, was received through the 
courtesy of Prof. Charles S. Banks, chief of the department of 
entomology of the College of Agriculture, University of the Phil- 
ippines, who collected some of the species, as detailed below. 
Mr. L. B. Uichanco reared a number of species from various 
galls; the galls, I understand, are to be described in detail in 
another paper. 
Ctenodactylomyia antidesmse sp. nov. 
Female. — Length, 1.5 millimeters. Antenna extending to the 
base of the abdomen, sparsely haired, reddish brown, the basal 
segments reddish orange, probably of 14 segments, the fifth cylin- 
drical, its length two and one-half times its diameter. Palpi 
presumably triarticulate, first segment irregularly and broadly 
oval, second a little longer, slenderer, third three times as 
long as its width and somewhat dilated. Eyes black, holoptic. 
Mesonotum pale yellowish, sparsely clothed with coarse setae. 
Scutellum translucent yellowish. Postscutellum yellowish orange. 
Abdomen reddish orange, distal segments rather thickly clothed 
* Felt, E. P., New Philippine gall midges, with a key to the Itonididse, 
Philip. Joum. Sci. § D 13 (1918) 281. 
287 
