336 DIPTERA. 
Antenne inserted on the median line of the eyes, blackish, the basal joints somewhat brownish-rufous ; 
second joint with a bristly hair; third joint three times as long as the second ; arista bare. Proboscis 
and palpi black. Thorax blackish, anteriorly with white tomentum and indistinct black stripes, the 
pleure also whitish; scutellum black. Abdomen flattened, elongate, narrower than the thorax, with 
parallel sides, obscure grey, with a black dorsal line, which is most distinct on the last three segments ; 
anus and genitalia greatly developed; many hairs and long lateral and marginal macrochete on all the 
segments. Legs black, long and slender, with numerous bristles ; the knees of the front pair dark 
rufous ; foot-claws and pulvilli elongate, the pulvilli whitish. Tegule whitish, small; halteres yellow. 
Wings brownish, darker along the costa; small cross-vein under the end of the first vein and on two- 
thirds of the discal cell; third and fourth veins parallel ; terminal section of the fourth vein nearly twice 
as long as the penultimate section ; posterior cross-vein almost straight. 
Hab. Mexico, Sierra de las Aguas Escondidas in Guerrero 9500 feet (H. H. Smith). 
Two male specimens. 
2. Anthomyia dorsimaculata, sp. n., ¢. 
Grey ; thorax anteriorly whitish; abdomen with black dorsal spots ; palpi and legs black, the tibiee piceous. 
Length 5 millim. 
Allied to the preceding species (A. elongata). The abdomen is similarly flattened, but shorter; the black 
dorsal line is represented by large black spots on the segments; the black stripes on the whitish prothorax 
are still less conspicuous; the antenne are clearer and more generally brownish-rufous in colour ; the 
tibie are piceous, somewhat testaceous; the tegule are very small, and the lower scale scarcely visible ; 
the wings have a more dilute brownish tinge, which is not more obscure along the costa; the neuration is 
similar. 
Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith). 
Five male specimens. 
Another male specimen, from Sierra de las Aguas Fscondidas in Guerrero, 9500 feet 
(H. H. Smith), agrees with them in the shape and markings of the abdomen and in the 
coloration of the wings, but differs in having wholly black antenne and legs. 
8. Anthomyia segmentata, sp. n., ¢. 
Cinereous ; thorax with indistinct stripes; abdomen with a dorsal line and the front borders of the segments 
_ black; antenna, palpi, and legs black. 
Length 4°5 millim. 
This species also is allied to A. elongata and still more nearly to A. dorsimaculata ; the thorax is cinereous, 
with some indistinct blackish stripes, the whitish coloration on the prothorax and at the sides being absent ; 
the abdomen is similar in shape to that of A. dorsimaculata, but the ground-colour is more cinereous, and 
a black dorsal stripe extends uninterruptedly over its whole length and is crossed by black transverse 
bands at the front borders of the segments. The antenne and legs are unicolorous black ; the antenne 
are shorter, their third joint one and a half times as long as the second. The wings are greyish- 
hyaline. 
Hab. Mexico, Omilteme 8000 feet and Sierra de las Aguas Escondidas 9500 feet, 
both in Guerrero (H. H. Smith). 
Three male specimens. 
In the Central-American collections before me there are several females belonging to 
the genus Anthomyia in its restricted sense, but none of them can be placed with any 
