THE PHORIDAE OF FORMOSA. 
547 
straight apically; fifth and sixth weakly sinuous; seventh almost straight, 
quite distinct. Halteres black, the base of the pedicel light brown. 
Three females from Polisha, December 1908. 
In one specimen the abdomen lacks any pale color, but otherwise 
all agree closely with the type. 
Aphiochæta flaviclava n. sp. (Fig. 11.) 
Male. Length 1*7-—1‘9 mm. Yellowish brown, the abdomen marked 
with black, and the hind femora and tibiæ tipped with black. Head 
small, flattened antero-posteriorly toward the vertex. Front about one- 
third higher than broad, finely black hairy, with a distinct median 
frontal groove and ocellar tubercle ; frontal bristles rather short and 
weak. Four proclinate bristles, the upper pair larger and twice as far 
apart as the lower ones ; next row above of four reclinate bristles, the 
median pair of which are placed laterally, close to the eye margin 
almost directly beneath the lateral pair which are scarcely separated 
from the eye margin. Next row of four equidistant bristles forming a 
straight line, with the lateral bristles very close to the eye margin. 
Ocellar row of four equidistant, large bristles. Postocular cilia rather 
short, cheeks each with a pair of stout macrochætæ and a row of small 
bristles running up to the antennæ along the eye margin. Antennæ 
small, rounded, deeply set in the facial cavities, with a bare arista as 
long as the head height. Palpi deep yellow, well developed, but not 
enlarged ; with stout bristles toward the tips. Thorax elongate, the meso- 
notum microscopically hairy and bristly on the sides behind ; one pair 
of dorsocentral macrochætæ. Scutellum elongate, with two strong mar¬ 
ginal bristles. Upper portion of mesopleura hairy like the mesonotum 
and with a single large macrochæta. Abdomen dull yellow, with irre¬ 
gular brownish stains and a black cross-band including the third and 
fourth segments, but more or less interrupted medially; sixth segment 
35* 
