24 Psyche [March- June 
the fact that their pile is dark brown whereas elsewhere, except 
upon the apical two-fifths of the hind femora, the pile is pale. 
Wings: elongate, nearly hyaline, whole of the stigmal cell light 
brown, the sinuosity of the third vein very slight, the subapical 
cross vein long, nearly straight, sharply though slightly bent back 
a short distance from its apex. 
Holotype. No. 23796, one male, Sozan, Formosa, June 30, 
1934. L. Grissett collector. 
Syrphus ochreolinea n. sp. 
Related to orientalis H. B. from which it differs in abdominal 
pattern, etc. 
Female. Length 7.5 mm. ; wing 7.5 mm. Head: shining metallic 
black over the vertex, the upper third of the occiput black with 
brassy-brown pubescence, the lower part greyish white pollinose; 
all of the occipital pile is long and yellowish white. The front is 
shallowly concave with a broad band of greyish-brown pollen 
across the middle which is from either side directed a little diag- 
onally downwards. The band is of uniform width on a shining 
black background. Face shining black with a yellowish-brown, 
inverted V running from base of antennae towards the eye mar- 
gins, ending opposite the tubercle, its margins diffuse. The whole 
of the face except the prominent tubercle is whitish pubescent; 
the shining black cheeks are also whitish pubescent. Pile of face 
almost wholly pale ; with a few black hairs along the eye margins 
on the upper part of the face; the pile of the front and vertex is 
long, erect and black. Eyes rather thickly long white pilose. 
Antennae black, the third joint large, suborbicular with reddish- 
brown pubescence. Thorax : shining greenish-black with long, 
thick, erect, pale pile. Scutellum greenish-black, somewhat 
brownish on the posterior half and dark brownish pollinose; the 
pile on its disc is pale, along its margin is a double row of very 
slender, long black bristles. Squamae whitish with yellow fringe, 
its surface without pile. Abdomen: broadly oval, the first and 
second segments somewhat flattened, the lateral margin of the 
abdomen slightly curled over but not emarginate. First segment 
metallic black, the second shining black with a pair of melanic 
spots obscurely reddish, small, oval and quite widely separated 
by at least twice their length. Third segment with a pair of sub- 
basal, light brown transverse spots, each end rounded, set well 
back from the lateral margin, placed horizontally and separated 
