362 Psyche [December 
Doter pusillus Tillyard 
Asthenohymen pusillus Tillyard, Amer. Journ. Sci., (5) 
11 (61) : 68, fig. 7. 
Length of wing, 5-7 mm. ; width, 2-3 mm. Wing broad, 
especially at the base, but the costal space is not quite so 
broad as in minor; pterostigma is rather well developed; 
1A is short and remote from Cu2, but is connected with it 
by a cross-vein. 
Holotype : No. 5051, Peabody Museum. In the Harvard 
collection there are two fine specimens of this species : one 
of these (No. 3097ab) is about the size of the type, 5 mm. 
long; the other is 7 mm. long, but otherwise identical. As 
I have stated above, Tillyard erroneously thought that this 
species was characterized by a forked Cul. Both the Har- 
vard fossils show two cross-veins between Cul and Cu2, 
although only one was apparent in the faintly preserved 
holotype. 
Fig. 3. Fore wing of Aspidohymen triangularis Brogn., 
from the Carboniferous of France (after Brongniart). 
Fig. 4. Wing (hind*?) of Aspidohymen extensus Mart., 
from Russian Permian (after Martynov). 
