62 
Psyche 
[March 
may have been formed by an alignment of the sides of several of the 
cellules comprising the archedictyon. The wing on which amii is 
based is quite clearly a hind wing and although this is broader than 
the hind wings of any known dictyoneurids, the hind wings in several 
genera are markedly broader in the anal region than the fore wings. 
The greater differentiation in amii seems to me insufficient to eliminate 
it from the family on this basis alone. However, a distinct genus 
seems to be necessary for the fossil, since the genus into which it was 
placed by Copeland is a megasecopteron. 
Schedoneura, new genus 
Main veins of the wing with the general characteristics of the 
dictyoneurids: Sc and Rs extending almost to the apex, Rs arising 
just before the middle of the wing, with four branches; MA un- 
Figure 2. Schedoneura amii (Copeland). Original drawing, based on holo- 
type. Lettering as in figure 1. 
branched, joined to the base of Rs by a distinct cross vein; CuA 
unbranched; CuP very well developed, with six terminal branches; 
several anal veins. 
Type species: Brodioptera amii Copeland 
Schedoneura amii (Copeland) 
Figure 2 
Brodioptera amii Copeland, 1957, Geol. Surv. Canada, Mem. 286:54, pi. 18, 
fig. 4-6. 
Hind wing: length, 13.5 mm; maximum width, 6.5 mm. 4 Branches 
of Rs about equally spaced, the basal branches arising pectinately, the 
The dimensions are incorrectly indicated on p. 101 of Copeland’s paper 
(1957). 
