1930 ] 
New Myrmecophilous Phorid 
163 
MNICTOMYIA, A NEW MYRMECOPHILOUS 
PHORID FROM THE PHILIPPINES 
By Charles T. Brues 
Among the extensive collections of ants obtained by Dr. 
J. W. Chapman on the island of Negros in the Philippines 
are several specimens of a most remarkable species of 
Phoridae which he found living with ants of the genus 
iEnictus. Dr. Chapman has very kindly placed these speci- 
mens at my disposal with the suggestion that I describe 
the species, which proves to be a wholly unknown form, 
which must form the type of a new subgenus. 
In the very recent classification of this family by Schmitz, 
the new aenictophile falls in the genus Diploneura, which 
Schmitz has divided into three subgenera, Diploneura 
sensu stricto, Tristoechia and Dohrniphora, but it differs 
from all of these by a very complete development of the 
dorsal macrochaetae on the thorax as well as by the excessive 
length of the bristles on the head and wings. 
The following tabular arrangement will indicate the 
characteristics that serve to distinguish the several sub- 
genera : 
1. Hind tibiae with two dorsal (extensor) lines formed 
of closely spaced and imbricated bristles, and be- 
tween these with a series of minute well separated 
bristles; mesopleurae bare above 2 
Hind tibiae with only a single row of bristles form- 
ing a line of the dorsal surface, mesopleurae hairy 
above 3 
2. Fourth longitudinal vein sinuous, the base curved 
upwards and the apex downwards Diploneura, s. str. 
Fourth longitudinal vein straight, not distinctly sinu- 
ous, nor curved at base of apex Tristoechia 
