1925 ] Myrmecophilous Phori dee from the Neotropical Region 303 
SOME MYRMECOPHILOUS PHORID.E FROM THE NEO- 
TROPICAL REGION. 1 
By Charles T. Brues. 
The several interesting flies described in the present paper 
have been sent to me through the kindness of Dr. Wm. M. Mann. 
During the course of his myrmecological excursions he never fails 
to obtain series of myrmecophilous insects and among these 
there are usually a few forms of wingless or subapterous Phoridse. 
Those obtained by him recently in Mexico and Central America 
include several remarkable species taken in the nests of a number 
of ants, mainly with Eciton and Pheidole. 
The types of the new species are deposited in the United 
States National Museum in Washington. 
Ecitomyia Brues. 
American Natural., vol. 35, p. 347 (1901) 
Since I described this genus nearly twenty-five years ago, 
the type pecies, E. wheeleri remained its only representative 
until 1923 when Borgmeier added two species from Brazil. The 
name Ecitomyia was originally applied as the Texan E. wheeleri 
was found to be regularly associated with Eciton ccecum. Borg- 
meier’s two species were, however, found associated with Sole- 
nopsis scevissima var. picea and I now have a fourth species 
taken in Costa Rica with Pheidole. 
It is evident therefore that the genus is by no means res- 
tricted to the driver ants although there can be no doubt that E. 
wheeleri is a true ecitophile and that it is restricted at least in 
Texas to association with Eciton ccecum. I have taken it many 
times and in considerable numbers, but never encountered it 
with any of the other species of Eciton that are common in that 
region. 
Ecitomyia is closely similar to Ecitophora Schmitz and in 
error I once referred the type species to Ecitomyia (Psyche, vol. 
Contribution from the Entomological Laboratory of the Bussey Institu- 
tion, Harvard University, No. 253. 
