Studies on Tipulidae II. 229 
Antennae: 2 + 20 joints; last joint rudimentary; flagellum 
finely and equally pubescent on both sides; the hairs, composing 
this pubescence, are about as long as the joints themselves (the pu- 
bescence here is a little longer than in 7. foreipatus). 
Wings (compare the figure of the venation of T. forcipatus 
in the Verh. Z. B. Ges. 1879, p. 521): broader than those of 7. 
foreipatus and anal angle more square and projecting; the venation 
is the same, except that the crossveins in the second submarginal 
and first posterior cells are wanting; a stump of a vein near the 
origin of the praefurca; the bifurcation of the 24 and 34 veins is on 
the same line with the small crossvein (and not anterior to it, as 
it is in the figure); the bifurcation of the 34 vein is nearer to the 
- tip of the auxiliary vein, than in the figure, and other slight diffe- 
rences. The vein bordering the hind margin is not as stout as in 
T. foreipatus. 
Legs: the proportion between the joints of the hindmost pair 
or.tarst iS bke 3.2 EL 
Male forceps: as far as I can judge from the figure of the 
male in my possession, it looks like that of 7. forcipatus, the 
prongs being direceted downwards. 
Ovipositor: two minute coriaceous valvules, oblong, rounded 
at tip. 
The specific characters are as follows: 
Tanyderus ornatissimus. 
Antennae pale yellowish, scapus darker; rostrum and palpi 
brownish; the intermediate joints seem to be paler; the neck is 
nearly as long as head and rostrum together; thorax brownish-yellow, 
variegated with darker brown on the pleurae; three brown, almost 
contiguous stripes on the dorsum, the intermediate geminate, although 
the line of division is hardly perceptible; halteres yellow, with brown 
knob. Abdomen brown, variegated with paler brown; on each side 
of the intermediate joints a white spot, in the shape of a comma, 
which is truncate at the big end; coxae brownish; legs finely hairy, 
yellow, faintly infuscated about the knees and also on the latter 
half of the hind tibiae. Wings with a handsome pale brown picture, 
resembling that of T. pietus (Verh. Zool. Bot. Ges. 1865, Tab. XXIX, 
{. 57) in its general outline, but differing in the greater extent of 
the brown portions at the expense of the hyaline ones; there are 
four small hyaline spots along the costa, and a large hyaline space 
on the costa immediately before the apex; in it, a small brown dot 
at the tip of the first vein; a hyaline cerossband begins at the hind 
19% 
