new species of Exotic Tipulide. 365 
consists in the contact of the second submarginal cell 
with the discal, the consequence of which is that the 
small or anterior cross vein is wanting. A similar 
structure exists in the genus Paratropesa, Schiner 
(Novara, p. 44, pl. u., fig. 2), and in a few other rare 
instances in the family Tipulide. But your genus is 
certainly not Paratropesa, because in that genus the 
first longitudinal vein is remarkably short, and does not 
reach much beyond the proximal end of the discal cell. 
You would be justified, therefore, in describing it as a 
new genus.”’ 
Dapanoprera, Osten-Sacken MS. 
This genus has been proposed for several beautiful 
species of gnats from New Guinea and Mysol, described 
(without proper notice of their precise structural 
peculiarities) by the late Mr. F. Walker under the 
names of Limnobia latifascia (Proc. Linn. Soe. viii. 
p- 104); ZL. auroratra* (Ibid. vii. p. 202); L. perdecora 
(Ibid. v. p. 230); and ZL. plenipennis (Ibid. vii. p. 108, 
New Guinea). 
These species agree in the remarkable characters of 
having the extremity of the first longitudinal vein 
evanescent before reaching either the costa or the 
extremity of the wing, which is marked shortly before the 
apex, in some of the species at least, by a white opaque 
transverse patch ; and it is at the proximate edge of this 
patch that the first longitudinal vein suddenly ends. 
I am indebted to the Baron Osten-Sacken for the 
following notes on this insect :— 
“In the paper which I am preparing on Exotic 
Tipulide, 1 have established a new genus on Limnobia 
plenipennis, Walk., from New Guinea, and three others 
of Walker (all from New Guinea and Mysol). The 
characters of the new genus are—the evanescence of the 
tip of the first longitudinal vein, together with the cross 
vein adjoining it; the presence of a cross vein in the 
first posterior cell, together with the variegated colouring 
of the wings. This genus is closely related to Limnobia 
(sensu stricto), and will be called Dapanoptera (from 
dapane = expense, luxury, profusion).” 
* Altered to awroatra in Proc. Linn. Soc. ix. p. 7, the name 
auroratra heing evidently a typographical lapsus. 
