THE PHOEIDAE OF FORMOSA. 
555 
long as the wing, beset with fine, short, closely placed cilia ; tip of first 
vein quite distinctly closer to the humeral cross-vein than to the tip 
of the second vein, second vein not very strongly divergent from the 
third, forming a narrow, but rather large Cell by its furcation. Fourth 
vein evenly curved, quite strongly so and recurved at the base ; fifth 
evenly curved till toward the tip where it is recurved ; wing tip midway 
between the tips of the fourth and fifth veins ; sixth vein sinuate ; se¬ 
venth faintly so, longer than usual. Halteres entirely black. 
One female from Chip Chip, February 1909. 
Aphiochæta meracula n. sp. (Fig. 16.) 
Female. Length 1*8 mm. Pale yellow, with the abdomen stained 
with black above and the hind femora blackened at tip. Front qua¬ 
drate, whitish pollinose and blackened on the upper half, especially 
about the ocelli. Ocellar tubercle and median frontal line present. Only 
two proclinate frontal bristles, although the lower pair are represented 
by fine, short hairs. Second row of bristles forming a pair at each 
anterior angle of the front close together and near the eye margin, the 
median one much closer to the eye than to the proclinate bristle ; 
middle row of four equidistant bristles forming a row curved down¬ 
wards medially and with the lateral bristle very close to the eye ; 
ocellar row normal; all the frontal bristles large and stout. Antennae 
pallid yellow, almost white, rounded, of moderate size ; arista black,, 
pubescent, a little longer than the head height. Palpi small and slen¬ 
der, pale yellow, with a single row of long, stout bristles along the 
lower edge. Mesonotum narrow, dull'yellow, clothed with sparse black 
hairs and bristly along the sides behind; one pair of dorsocentral ma¬ 
cro chætæ and two marginal scutellar bristles. Scutellum evenly arcuate 
posteriorly, about twice as broad as long. Pleuræ pale luteous below 
and dull yellow above; mesopleura bare, but the propleura bears two> 
