178 
nervation not so distinet. Most of the cross veins in the costal 
area are forked but not crossed; a recurrent vein at the base as 
in the forewings. Several cross veins in the subeostal area. One 
radial sector which emits six branches. Media forks near base, 
and its hind branch forks several times. Cubitus forks nearer the 
base than the media, and its posterior branch forks near the margin 
of the wing. Three anal veins; all of them forked. Pterostigma 
indicated by a more dense nervation and by a stronger greyish 
brown tinge. At the base of the wings behind and a little farther 
Pig. 3. Rapisma magna. X 12 1 7 . 
out than the origin of the radial sector a chitinous tubercle — 
rather conspicuous in the forewings. Nervation and horders of 
the wings densely yellowish brown haired. 
Length of forewing 35 mm. that of hindwing 30 mm. 
One female in the Westermann collection in the Zoological 
Museum, Copenhagen. The specimen is labelled „Himalaya”. 
In „Trans. Ent. Soc. Lond.” Vol. V, p. 353, 1865—67 Mac 
Lachlan founded the genus Rapisma for the species Hemerobius 
viridipennis Walker (Neur. Ins. Brit. Mus. p. 276, 1853) from East 
Indies. In the discussion of the generic characters Mac Lachlan 
