540 
CHARLES T. BRUES. 
Pleuræ piceous, somewhat paler below. Legs piceous on the four poste¬ 
rior coxæ and femora, but more or less saturate yellow elsewhere, 
especially on the tarsi and anterior femora. Anterior femora with a 
broad groove externally on their lower half for the reception of the 
flexed tibia, the groove not pubescent like the rest of the femur. Ante¬ 
rior tibiæ each with a small bristle at the basal fourth; middle tibiæ 
each with a pair of long bristles on the hind side at the basal third, 
the one on the outer edge a little closer to the knee, then with a third 
bristle externally just before the tip in addition to a slender apical 
spur as long as the metatarsus. Hind tibiæ each with a pair at the 
basal third, one external and the other behind; a single bristle at the 
apical third, and a fourth minute one externally just before the tip in 
addition to two apical spurs, one very short and the other nearly half 
as long as the metatarsus. Wings (fig. 6) oblong, of rather even width ; 
hyaline, with piceous veins. 
Costal vein quite distinctly 
shorter than half the wing 
length, slender, not so stout 
as the third vein, and sparsely 
beset with weak setulæ ; tip 
of first vein one and one- 
half times as far from the 
Fig. 6. Conicera formosensis, wing. humeral cross-vein as from 
the tip of the third. Third 
vein simple, bare, not enlarged at its apex. Light veins delicate; fourth 
evenly, but not strongly curved, ending as far from the wing tip as 
the fifth which is almost straight; sixth bisinuate, seventh nearly obso¬ 
lete, close to the anal angle of the wing. Halteres entirely black. 
Two females from Takao, 300 metres; April 21, 1907. 
This is most closely related to the European and North American 
C. atra Meigen, differing most conspicuously by the sparse delicate 
setulæ on the costal vein. It is not at all like C. bicolor Brues from 
Singapore, or C. simplex Brues from New Guinea. 
Aphiochæta Brues. 
In the present collection, I have been able to distinguish thirteen 
species of this genus, all of which appear to be unescribed with the 
exception of a single widely distributed form, A. pygmaea Zett. It is 
far from likely however that all the others will prove to be peculiar to 
