102 
Psyche 
[June 
the characteristic form of the Ideliidae, with a straight 
and weak CuP, and a well developed CuA. The latter 
forks shortly after its origin, forming a straight posterior 
branch (CuA2) and a double-forked CuAl. The anal 
veins are unbranched and straight or nearly so. Cross- 
veins are preserved only in the apical part of the wing, 
where they are numerous and arranged at right angles to 
the longitudinal veins. There is no indication of cellules, 
except in the anal area, where the cross-veins are short 
and close together, much as in Metidelia. 
Icleliopsis ovalis, n. gen. and n. sp. Fore wing, drawn from holotype. 
Sc, subcosta; Rl, radius; Rs, radial sector; Ml + 2, anterior branch of media; 
M3 + 4, posterior branch of media; CuA, anterior branch of cubitus; CuP, 
posterior branch of cubitus; 1A, first anal vein. 
Holotype: No. 112018, U. S. National Museum, Wash- 
ington, D. C. ; collected 2J miles south-east of Fulda, 
Texas, in Castle Hollow. 1 The specimen consists of a 
nearly complete anterior wing and fragments of the other 
wings. The insect has been flattened to such an extent 
that convexities and concavities of the veins are weakly 
indicated at most. The rock containing the fossil is a 
bluish-gray, friable clay-shale. Horizon : Lower Permian 
(Belle Plains Formation, Wichita Group). 
Ideliopsis seems to fit more readily into the family 
Ideliidae than into the related Lepiidae. All known species 
of the latter family, which is represented in the Lower 
Permian beds of Kansas, have a less strongly arched CuA. 
Additional specimens of these two families may show that 
they are really inseparable. All the described Lepiids 
1 This locality is mentioned by David White, 1912, Proc. U. S. Nat. Mus., 
41: 495. 
