12 
Psyche 
[March 
in the longer Rs and in the branching of the main veins, which gen- 
erally arise much more basally. From the Arcioneuridae it differs 
in the longer Sc, in the simple MA and CuA; from the Caulopteri- 
dae in the simple MA and the absence of coalescence between MP 
and CuA. 
Type genus: Ancoptera, new genus. 
Ancoptera, new genus 
Wings: long but only slightly narrow, with broadly rounded apex; 
posterior margins with only shallow undulations. C broad, flattened ; 
Sc and R1 crowded towards the costal margin in the distal third, but 
well remote from it proximally; Rs with 2 long branches; stem of R, 
stem of M and 'CuA touching each other in the proximal third of the 
wing ; mp area large. 
The generic name is derived from the Greek words ankos and 
ptera (curve + wings) and is considered neuter plural. 
Type species: Ancoptera permiana, n.sp. 
Ancoptera permiana, n.sp. 
Figure 2 
This species is based upon a well preserved adult wing, with the 
narrowed basal part missing. The long anterior branch of R 1 is 
probably only an individual variation. Besides the holotype, another 
specimen (no. 31/1974, fig. 10) was found, this being the distal part 
of a wing. In this wing fragment, the apical part is more pointed 
and the Rs branches are much shorter than in the holotype. The 
veins and cross veins are surrounded by dark-colored, narrow bands, 
as in Dictyoneurella. Specimen no. 31/1974 probably belongs to a 
separate species, but because of the small size of the fragment it is 
referred here to Ancoptera sp. 
Wing: length about 43 mm, width, 9.8 mm. Posterior margin 
with 4 undulations in the distal part of the wing, Rs diverging from 
R 1 at about the first fifth of the wing length; first branch of Rs 
originating much before mid-wing; MP with a series of 3 branches; 
CuP forming a wide fork, mp-cua area and cup-anal area are wide. 
Intercalated sectors long and regular. 
Holotype: no. 30/1974 (wing fragment, length 36 mm, width 
9.8 mm; obverse and reverse); specimen no. 31/1974 (wing frag- 
ment, length 31.5 mm, width 10.7 mm; reverse). Paleontological 
Institute of Charles University, Prague. 
