324 DIPTERA. 
BRACHYOPHYRA. 
Brachiophyra, Giglio-Tos, Boll. Mus. Zool. Anat. Comp. di Torino, viii. no. 147, p. 9 (1893). 
According to the author, this genus is allied to Ophyra, Rob.-Desv., and Brachy- 
tarsina, Macq. It is mentioned here because it is founded on a Mexican species, 
which, however, is unknown to me. 
1. Brachyophyra effrons. 
Brachiophyra effrons, Gigl.-Tos, Boll. Mus. Zool. Anat. Comp. di Torino, vii. n. 147, p. 9 , 
Hab. Mexico}. 
LIMNOPHORA. 
Limnophora, Robineau-Desvoidy, Essai sur les Myodaires, p. 517 (1830). 
The Anthomyine of this genus are generally of a smaller size than those of Ophyra, 
and mostly of a cinereous coloration, with black markings on the abdomen. ‘The eyes 
are bare, nearly or quite contiguous in the males, broadly separated in the females; the 
vibrissee are inserted at the oral margin; the arista is bare or pubescent; the abdomen 
is ovate or elliptical, with four visible segments only; the legs are simple in both sexes ; 
and the lower scale of the tegule extends beyond the upper one. The wings have the 
third and fourth veins parallel, the fourth not being curved upwards towards the end ; 
the anal vein does not reach the border of the wing. 
From the Central-American regions I examined representatives of the following 
species :— 
1. Wings without blackish markings. 2. 1 1 1 ee ee ee 
Wings with a blackish marking at the cross-veins. . . - . - + 4& 
2. Wings brownish ; foot-claws and pulvilli elongate in the male . . fumipennis, v. d. Wulp. 
Wings greyish-hyaline ; foot-claws and pulvilli short . . . . . 3. 
8. Terminal section of the fifth vein nearly as long as the posterior 
eross-veln. 2. 6 ee ee ee ew meraca, v. d. Wulp. 
Terminal section of the fifth vein distinctly shorter than the posterior 
cross-veln. . . oe Loew ew ww ew ee) 6Aelecta, v. d. Wulp. 
4, Wings, in addition to the brown-bordered cross-veins, with a brown 
marking along the costa and at the tip of the third and fourth 
veins; palpi and legs black . . . . 1. ee + ee + + + umbrosa, Vv. d. Wulp. 
Only the cross-veins brown-bordered ; palpi and legs rufous . . . socia, v. d. Wulp. 
1. Limnophora faumipennis, sp.n.,¢. (Tab. VIII. fig. 7.) 
Black ; abdomen cinereous, with four black spots; wings brownish. 
Length 5°5 millim. 
Front triangular, black; eyes contiguous ; face and cheeks black, the internal orbits narrowly whitish, the face 
perpendicular ; oral margin slightly prominent; inferior part of the cheeks narrow, with a row of bristly 
hairs. Antenne black, inserted on the median line of the eyes; second joint with a bristle; third joint 
two and one-half times as long as the second, reaching to near the vibrissx ; arista pubescent. Proboscis 
and palpi black, the palpi cylindrical. Thorax, scutellum, and abdomen black, slightly shining ; thorax 
