1 1923] Notes on Some Genera of Myrmecophilous Phoridce 21 
Acontistoptera brasiliensis Schmitz 
Zool. Jahrb , Abth. f. Syst. vol. 37/p. 527 (1914) 
Dr. Mann obtained this species on two occasions, once at 
Tumupasa, Bolivia (December 1921) with Eciton coecum and 
again at Covendo, Bolivia, with the same ant. The type was 
found with E. predator in Santa Catarina, Brazil. 
There is a slight disagreement between these specimens and 
Schmitz’s original description, but I think this is undoubtedly 
due to the poor condition of the type which according to its 
describer is defective and glued to a card The mesonotum 
bears a pair of marcochsetse on the disc in front of the pair shown 
in the original figure ; so that there are two pairs of dorso-centrals 
instead of one. Also the abdomen bears a very small basal 
plate, elongate oval in form which is no doubt a vestige of the 
second tergite which is so large in most of the related genera. 
The three known species of Acontistoptera may be distinguished 
quite readily by the form of the thorax which is more or less 
triangular in all, but varies in width and length. Thus in A. 
melanderi Brues from Texas it is considerably longer than broad, 
in A. mexicana Malloch from Mexico, nearly twice as long as 
broad and narrowed almost to a point at the base of the scu- 
tellum, while in the present species the length scarcely exceeds 
the width. 
Ecitomyia comes Schmitz. 
Zool. Jahrb. Abth. f. Syst., vol. 37, p 524 {Ecitophora) 
This species is represented by two series, one taken with 
Eciton hurchelli at Huachi, Bolivia and the other with E. coecum 
at the mouth of the Rio Madidi, Bolivia (January 1922). 
The specimens all agree exactly with Schmitz’s original 
description and figures, but have no ocelli, and I feel quite 
positive that the hyaline spots referred to as ocelli are really 
the points where bristles have been broken off. Compared with 
Ecitomyia wheeleri Brues^ E, comes may be readily recognized by 
the complete absence of the second chitinous plate (third tergite) 
on the abdomen and by the more heavily bristled wings. 
