55Q 
CHARLES T. BRUES 
ped ; the four of the next row placed in vertical pairs at each lower angle 
of the front, the lower bristle almost as near to the eye margin as the 
upper ; following row straight ; ocellar row as usual ; ocellar tubercle and 
frontal groove present. Antennæ small, brownish black, paler beneath ; 
the arista strongly pubescent. Palpi slender, pale yellow, with strong 
black bristles. Thoracic dorsum shining piceous brown, with one pair of 
dorsocentral macrochætæ and two scutellar bristles. Abdomen dull black, 
the hypopygium deflexed. Legs testaceous yellow ; front legs shorter and 
stouter than usual, especially the tibiæ and tarsi ; hind femora thickened, 
their tibiæ not setulose. Wings clear hyaline, the veins brown, costa not 
attaining to the middle of the wing, its cilia long and placed far apart; 
first vein ending a very little closer to the tip of the third vein than to 
the humeral cross-vein ; cell formed at the furcation of the third vein 
very small ; fourth vein slightly, evenly curved ; fifth nearly straight ; 
sixth faintly bisinuate ; seventh sub-obsolete. Halteres dark brown. 
Two males, Seleo, Berlinhafen and Friedrich- Wilhelmshafen, New 
Guinea (Brno, 1896). 
This is one of the smallest species in the genus. Other distinctive 
characters are fond in the frontal chætotaxy and ving venation. 
Aphiochæta sodalis n. sp. 
Male. Lenght 1*3 mm. Very similar to crassimana, but the palpi 
are not enlarged and the front is opaque instead of shining. Head large ; 
the front a trifle wider than high, opaque black, faintly grayish in certain 
lights ; ocellar tubercle and frontal groove distinct ; chætotaxy of front as 
in crassimana’, post-ocular cilia weak, cheeks at the lower end of each 
eye with a row of about five strong, downwardly directed macrochætæ. 
Antennæ large, oval, black, with a thinly pubescent arista. Palpi deep 
yellow, slender ; with strong bristles below. Mesonotum black, sub-shining ; 
one pair of dorsocentral macrochætæ and two scutellar bristles. Abdomen 
small and slender, opaque black, with a very few bristly hairs near the 
apex. Hypopygium directed downwards, black ; fifth ventral segment with 
a transverse row of bristles before the hypopygium. Legs piceous. The 
anterior femora and tibiæ a little paler ; the anterior femora swollen 
basally and grooved for the reception of the tibiæ ; anterior metatarsus 
flattened and enlarged, but not fringed with hairs; following joints flat¬ 
tened, only one-half longer than wide. Posterior tibiæ with extremely 
fine setulæ. Wings hyaline, venation as in crassimana. Halteres piceous. 
One male, Botany Bay, Sydney, New South Wales, Australia (Biró, 
2. November 1900). 
