( 247 ) 
Remarks .—Male unknown. The chief claim to be considered a separate 
species is the extraordinary length of the first fork cell which is longer than 
in any other member of this genus being quite four times the length of its 
own stem and the clavate lateral wing scales. In all other respects it 
closely resembles T. Rubithovacis. 
Topomyia Tipuliformis. n. sp. 
Abdomen extraordinarily slender being fully one-and-half times as long 
as the wings and without any ornamentation save an ill-defined dingy 
white spot on either side of segments five, six and seven. Head clad 
with black scales with a patch of pearly-white iridescent scales on the vertex 
and a small spot low down on either side. 1 horax black with median 
pearly-white iridescent stripe and black narrow curved scales. Pleurae 
dark-browm. Legs purple-black. 
Male Head .—On the vertex a semi-circular patch of pearly-white 
iridescent racquet-shaped scales with rounded ends and low down on either 
side is another patch of white scales, the rest of the head covered with closely 
set black broad scales, vertical bristles absent, orbital black. Basal joint of 
antenna black with silvery tomentum, remaining joints black with silvery 
rings at the bases. Palpi very short closely applied to the olypeus, black 
scaled as is the proboscis. 
Thorax .—Prothoracic lobes black with elliptical pearly-white scales and 
a row of dark brown bristles. Mesonotum black with central stripe 
composed of two rows of almost circular scales pearly-white with iridescent 
tints and black narrow T -curved scales over the whole of the rest of its surface 
except on the shoulders which are clad with small circular olive-brown 
scales. Scutellum dark brown clad with large racquet-shaped scales dark 
brown in colour. In some specimens some of the central scales are pale or 
even white. The scutellum is very small not more than tw T o-thirds the 
breadth of the base of the mesonotum. Pleurae dark-browm clad with 
silvery scales some racquet-shaped some almost circular. \\ ings with brown 
scales the lateral being short linear scales those at the apex of the wings 
having their distal ends slightly enlarged ; fork cells of equal breadth the 
first, ionger than the second, its base near the wing bases, its stem rather 
more than half the length of the cell; supernumerary and median cross veins 
form one line and are of about equal length, posterior cross vein its own 
length from the median. Coxae pale yellowish-brown clad with silvery 
scales. All legs clad with purple-bronze scales. No silvery scales on the 
ventral surfaces, but the scales on the tarsal joints are distinctly paler 
and beautifully iridescent appearing almost silvery in some lights. 
Abdomen .—Segments elongated clad with dark brown scales with purple 
reflections, the ventrum and dorsum being clothed alike. On either side of 
the fifth, sixth and seventh segments is a patch of pale silvery scales only 
seen in some lights and at no time very distinct though possibly they are 
more distinct in the fresh specimen. 
Occurrence .—Described from several males taken on the margins of 
a stream in the jungle at “The Gap and in the dried bed of a stream at 
Raub. 
* 
