90 | DIPTERA. 
antenne a little longer than the second; arista thickened for less than the proximal half. Thoracic 
dorsum with very indistinct darker stripes; pleura whitish-grey. Abdomen conical, convex; second 
and third segments of equal length and a little longer than the first, each with three, rather obsolete, 
oblong, blackish spots, the lateral spots more trigonal; anal segment pale rufous, the front border with 
a whitish tomentum; on the hind margin of the second segment two weak macrochextz, on that of the 
third and fourth segments a row of similar macrochexte. Legs with some short and weak bristles. 
Tegule white. Wings not longer than the abdomen, with scarcely any grey tint; venation as in the 
preceding species. 
Hab. Mexico, Presidio (forrer). 
A single male specimen. 
4. Miltogramma sarcophagina, sp.n., 2. 
Cinereous ; frontal band, antennew, and legs black; thorax with three black stripes; abdomen tessellate, the 
anal segment rufous. 
Length 7°5 millim. 
Allied to the preceding species (1. erythrura) and perhaps the other sex of it. The frontal band is black and . 
becomes a little broader towards the vertex; on the hind lateral part of the front are inserted some 
bristles; on the thoracic dorsum are three distinct black stripes, the median stripe prolonged over the 
scutellum ; the blackish spots on the abdomen are arranged in three longitudinal rows; legs, tegule, and 
wings as in WM. erythrura, but the foot-claws and pulvilli are shorter. 
The insect resembles at first sight a small Sarcophaga. 
Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith). 
f 
A single female specimen. 
A second specimen, from Amula 6000 feet, in Guerrero (H. H. Smith), differs in the 
more diffuse and obsolete dark markings of the thorax and abdomen. 
BRACHYCOMA. 
Brachycoma, Rondani, Dipt. Ital. Prodr. iii. p. 203 (1859). 
This genus agrees with Mystacella, Meigenia, and Macquartia in the vibrisse being 
inserted at some distance above the oral margin. From Mystacella and Macquartia it 
differs in having the eyes bare; from Meigenia in having the curvation of the fourth 
vein rectangular or almost so, and the apical cross-vein more or less concave. 
The type of the genus Brachycoma is the European Tachina devia, Meig., of which 
Meigenia bombivora (v.d. Wulp, Tijdschr. voor Ent. xii. p.142)is a synonym. A second 
species, B. metopiella, from Italy, was described by Rondani. No less than twenty species 
from Central America belong to it. | 
1. Second antennal joint elongate, the third not longer than the 
second. 2. 2. 1. 1 ee ee ew ew ww we. batticeps, v. d. Wulp. 
Second antennal joint short, the third at least twice as long 
as the second . . 2. 2 1. 1 ee ee eee ee 
2. Black species (with scarcely any whitish or greyish tomentum), 
with indistinct stripes on the anterior part of the thorax . afra, v. d. Wulp. 
