IQI2. | E. Brunertr1: New Oriental Diptera. A75 
being much broader in the middle. ‘The very peculiarly-shaped 
antennae however, the very short proboscis and head generally, 
in combination with a practically identical venation makes me 
refrain from setting up a new genus, and characters of structure 
are therefore included in the present description. 
As regards the identity of the veins, it may be considered 
that my short lower branch of the 3rd vein is really an upper 
(erect if not slightly recurved) branch of the anterior branch of 
the 4th vein, but its thickness (corresponding with the major 
part of the 3rd vein) and its direction give every appearance 
of it belonging to the 3rd vein. ‘The outer side of the discal cell 
may be regarded as the discal cross vein, and the small closed 
elongate cell below’ the discal cell, as being formed by the upper 
prong of the lower branch of the 4th vein turning down into the 
lower prong, thus closing what must be considered the 3rd pos- 
terior cell. As several of the veins fail to reach the wing margin 
it is clear that the 3rd submargina!, 2nd and 4th posterior and 
anal cells are all narrowly united at the wing margin. 
Pterodontia dorsolineata, mihi, sp. nov. 
(Pl: xxxwvil> figs: 8, Q;: £0). 
Oa Upper burma. Long. 7 mm. 
Head.—FEyes very large, black, closely contiguous, rather 
thickly pubescent: occiput moderately puffed out, dark grey; 
vertex small, three dull red ocelli. Antennae vellowish, the three 
joints nearly equal in length, but the 3rd rather the longest, with 
three very long straight bristly hairs at tip. Proboscis distinct, 
but short, cylindrical, pale vellow. 
Thorax.—Brownish yeliow, the dorsum mainly occupied by a 
large black shining spot, which is continued forward as a stripe as 
far as the anterior margin. Sides of thorax below dorsum black, 
except the mesopleura, which is brownish yellow, with a square 
black spot in the middle. The whole thorax covered with brown 
or yellowish hair, concolorous with the colour of the surface. 
Scutellum brownish yellow, pubescent, a large basal nearly circu- 
lar black spot. 
Abdomen.—Brownish yellow, Ist segment all black; 2nd all 
black except towards the sides; 3rd, 4th and 5th with a black 
spot on each segment, widest in front, extending from fore to hind 
margin, except on the 5th segment, where the spot fails to reach 
the latter. These spots form, with the black colour of the 2nd 
segment, a conspicuous, clear-cut, dorsal band of irregular width. 
The 6th segment wholly black. On each of the 2nd, 3rd, 4th and 
5th segments is a subquadrate black spot placed contiguous to the 
anterior and lateral margins. Belly yellowish, the segments faintly 
emarginate with brown, unmarked. The whole abdomen is 
brown or yellow pubescent, concolorous with the colour of the 
surface. 
