380 Mr. F. W. Edwards on a remarkable 
of Srinagar, Kashmir, in or by mountain streams at a height 
of 11,000-12,000 ft. The collection contained only about 
half-a-dozen Diptera, but among these were two examples of 
the most extraordinary insect to be described below. Many 
of the characters of this species are so remarkable that there 
seemed at first room to doubt whether it might not be 
Neuropterous rather than Dipterous, the wings and head 
both suggesting the Ephemeridze in some respects. After an 
examination of the literature, however, and after consulting 
my colleagues at the British Museum, and my friends 
Dr. C. P. Alexander, Mr. J. E. Collin, Mr. K. J. Morton, 
aud Dr. D. Sharp, all possible doubt on the matter has been 
removed, and there can be no question that the insect 
represents a new Dipterous type for which it will be 
necessary to erect a special family. This new family is 
perhaps allied to the Blepharoceridz, themselves one of the 
most aberrant groups of the Diptera, but the differences are 
so great that there seems no justification for including the 
new genus within the Blepharoceridee. Some points of its 
structure even suggest the possibility that our insect may have 
some connection, however remote, with the Cyclorrhapha. 
I propose to name and define the family as follows :— 
Fam. Deuterophlebiide, nov. 
FTead small, broad, and flat, hidden under the projecting 
mesonotum. No traceof mouth-parts. Noocelli. Antenne 
6-segmented, the last segment (at least in the ¢) several 
times longer than the whole body and practically bare, the 
remaining segments all rather short. Thorax very large, 
not much shorter than the abdomen; no distinct suture 
between the mesonotal preescutum and scutum. Abdomen 
with nine distinguishable segments (including the genital), 
but segments 1, 2, and 8 all very much reduced. No 
abdominal spiracles. Legs: coxe all short. Tibial spurs 
absent. Tarsi with large subcircular empodia and each with 
only a single claw. Wings very large and broad, covered 
with dense microtrichia and with a fringe of fine hair round 
the posterior margin, but no trace of macrotrichia even on 
the costa. Hardly a trace of true veins, but an elaborate 
fan-like development of secondary folds, with transverse 
folds forming concentric lines. Halteres well developed. 
Typical genus, Deuterophlebia, gen. nov., with the characters 
of the family. 
The new genus differs from all known Blepharoceridz 
in the absence of mouth-parts and ocelli, the form of the 
