PHORIDÆ FROM THE INDO AUSTRALIAN REGION. 
549 
This species is readily distinguished from any other known one by 
the inflated palpi in the male, combined with the enlarged front tarsi. 
Aphiochæta debilis n. sp. 
Female. Length 2*1 mm. Dorsum light brown, head and abdomen 
black, antennæ black. Front black, not shining, distinctly higher than 
broad, its bristles strong ; lower pair of proclinate bristles much weaker 
than usual ; the bristles of the row above in two pairs close to the lower 
angles of the front, the lower one nearer to the eye than usual. Follo¬ 
wing row strongly curved ; ocellar row normal. Post-ocular cilia rather 
stout; cheeks each with a pair of downwardly directed macrochætæ and 
a lateral row of smaller ones. Antennæ piceous, yellowish at the base ; 
arista almost bare ; palpi yellow, flattened, provided with strong bristles. 
Dorsum light reddish brown, finely hairy, with no stronger hairs along 
the hind margin ; one pair of dorsocentral macrochætæ and two scutellar 
bristles ; the scutellum long, sub-triangular in shape. Abdomen black, sub¬ 
shining, the posterior margins of the basal segments obsoletely lined with 
white ; venter black, genitalia pale ; sides of second segment with a bunch 
of three or four bristly hairs. Legs yellowish testaceous, the hind femora 
lined above with black and blackened at their tips, stout. Middle tibiæ 
obsoletely ciliated and posterior ones strongly so. Wings elongate, yello¬ 
wish, the veins light brown ; costal vein reaching to a very little beyond 
the middle of the wing, its cilia very short; first vein ending midway 
between the humeral cross-vein and the tip of the third; angle at furca¬ 
tion of third very acute ; fourth vein curved sharply at the base and straight 
beyond ; fifth faintly bisinuate at base, straight apically ; seventh vein 
distinct. Halteres clear yellow 7 . 
One female from Botany Bay, Sydney, New South Wales, Australia 
(Biro, 2. November 1900). 
This species would be most easily confounded with A. nigriceps 
Loew or A. flava Fall. From the former it differs by the presence of 
only two scutellar bristles, and the longer tibial and shorter costal bristles. 
From flava, the wolly black abdomen, dark antennæ, and different course 
of the fourth vein are distintive. 
Aphiochæta minutissima n. sp. 
Male. Length 075 mm. Black, the legs and palpi yellowish. Head 
large, flattened, frontal bristles rather weak ; front black, sub-opaque 
about as high as wide, the four anterior proclinate bristles well develo- 
