402 
CHARLES T. BRUES 
Aphiochæta meridionalis n. sp. 
(Plate VIII. fig. 10.) 
Female. Length 2*2 m. Luteons yellow, the legs very pale ; abdo¬ 
men honey-yellow, with a narrow 7 black band at the apex of each seg¬ 
ment, that on the second segment broadest and widened a little on the 
sides. Front as high as broad, distinctly narrower below 7 than above, 
yellow, the ocellar tubercle black, median frontal groove very distinct ; 
frontal bristles stout, four proclinate bristles, the median pair very 
small and close together, the larger pair equidistant from one another 
and the lower reclinate bristle on each side ; the upper reclinate bristle 
of this lower row nearly above the lower one ; next row 7 of bristles 
slightly curved, its members equidistant; ocellar row straight. Antennæ 
small, oval, luteous; arista finely pubescent. Palpi luteous, with strong 
bristles below. Proboscis fleshy and very short. Cheeks each with a 
closely placed row of about ten slender macrochætæ directed downwards, 
the posterior tw r o longer than the others. Postocular cilia not enlarged 
below. Thoracic dorsum yellow', rather shining, with one pair of dorso- 
central macrochætæ. Scutellum w r ith only tw 7 o bristles, abdomen yellow 7 , 
the first six segments w 7 ith black posterior margins, the bands of the 
second and third segments widened on the sides. Seventh segment 
black. The sides of the second segment with a bunch of black hairs. 
Legs long and slender, all the coxæ with a few black bristles below 7 . 
Hind femora scarcely thickened, their tibiæ with a black line above 
and a series of rather long but very w T eak setulæ. Wings hyaline, tin¬ 
ged with yellow, especially in front; costal vein reaching well beyond 
the middle of the wing, its bristles short, delicate and thickly placed. 
First vein ending at three-fifths of the distance from the humeral 
cross-vein to the tip of the costa. Furcation of the third vein rather 
sharp, the cell thus formed small, the last section of the costa as long 
as the second vein. Fourth vein evenly curved and recurved at the 
extreme tip. Fifth vein rather sharply bent at the middle. Sixth bent 
back beyond the middle, so that the two converge and then rapidly 
diverge apically. Seventh vein nearly straight and not conforming with 
the anal edge of the wing. Halteres pale yellow. 
One specimen. Paraguay : Asuncion. (Yezényi 1905). 
This form is related to the West Indian Aphiockaeta obscura 
Brues, which it resembles in general facies. It is quite different how¬ 
ever, and may be distinguished by the longer costal vein that reaches 
considerably boyond the middle of the wing, the almost hyaline wfings, 
pale banded abdomen, and closely placed costal bristles. The anal vein 
