THE PHORIDAE OF FORMOSA. 
537 
meeting the costa barely before it ; fourth vein practically straight until 
near the tip where it is recurved and ends nearer the wing tip than 
the fifth which is almost straight ; sixth slightly curved ; seventh more 
distinctly so and close to 
the anal angle of the wing. 
Halteres clear yellow. 
Female. Similar, but 
varying in size from 2—3*5 
mm. in length and with the 
abdominal spots more or 
less confluent, leaving only 
the base of the abdomen Fig. 4. Phora conventa , wing, 
and thin margins to the 
segments yellow. The posterior femora lack the blackened apex almost 
entirely. 
Eight specimens, two males and six females ; Takao (one at 
300 metres elevation), April 18 and May 11, 1907. 
This species resembles the foregoing in the peculiar series of 
bristles along the posterior margin of the mesonotum, but differs enti¬ 
rely in other characters. The straight wing veins are also similar and 
remind one of the European Ph. abbreviata v. Ros., but the frontal 
and tibial chætotaxy is entirely different. The two series of bristles on 
the hind tibiæ are very unusual. 
Hypocera Lioy. 
One species of this genus is represented, so nearly identical in 
all particulars with H. insperata Brues from South America, that I was 
at first inclined to doubt its oriental provenience. However, certain 
differences can be noted, and taking into consideration the close simi¬ 
larity between the European, North Ameiican and South American 
species of the section to which it belongs (forms having the occipital 
margin semicircularly elevated), I feel satisfied that it is a native For¬ 
mosan species. 
Hypocera suspecta n. sp. (Fig. 5.) 
Male. Length 4 mm. Black, with the antennæ, palpi and fore 
legs beyond the base of the femora, brownish. Head large, the front 
distinctly higher than wide ; above transversely concave and elevated 
semicircularly, with the occipital margin sharp. Lower row’ of four fron¬ 
tal bristles curved gently upwards laterally the lateral bristle inserted 
