254 
Psyche 
[September 
they have been sclerotized. In analogy to the closely related Protohy- 
menidae, it is probable that the projections were slightly curved and 
at least several millimeters long. 
Genus Alexahymen, new genus 
Type species: Alexahymen maruska n.sp., Lower Permian of Moravia. 
This genus includes one species, represented by 3 incomplete wings. 
Wings shorter than in the related genus Sylvohymen , broadest be- 
hind the midwing, tapering gradually towards the base; Sc distinct 
to about two thirds of the wing length; Ri diverging apically slightly 
from the anterior margin; Rs with two short branches; Ai parallel 
with the posterior margin; posterior margin slightly concave. 
Alexahymen differs from other genera of the family Bardohy- 
menidae in its relatively short and broad, gradually tapering wings, 
posterior margin concavely shaped, Ai parallel with the posterior 
margin and sending off a series of numerous twigs, and small rs area. 
Species included: Alexahymen maruska n.sp. (Lower Permian, 
Obora, Moravia). 
Alexahymen maruska n.sp. 
Figure 2, 3, 4 
Derivatio nominis: In honor of Mrs. Maruska Alexova, who generously 
gave support and encouragement to workers at the Obora locality for 
ten years. 
This species is based upon the holotype, represented by a wing 
without the proximal part, and by two additional, isolated, equally 
damaged wings. With regard to the close similarity between the fore 
and hind wings in Bardohymenidae, the position of wings in the pair 
can be only inferred. However, from analogy with Sylvohymen sibiri- 
cus } the only bardohymenid with both wings in situ , it seems that 
the hind wings in this family tended to have a straighter anterior 
margin and more concave posterior margin. Consequently, the holo- 
type (fig. 2) and specimen 2/1972 (fig. 3) are represented probably 
by the hind wing, while specimen 3/1972 (fig. 4) is more likely the 
fore wing. 
Color markings missing; total wing length about 33-36 mm, maxi- 
mum width 8. 7-9.9 mm; anterior margin slightly convex in the distal 
part; C bordering the wing; apex more or less pointed; Ri with 4-5 
very short terminal twigs; Rs branches short; Ai sending off 6 
branches; cross veins 15-16 in number, mostly in double row. 
Material: Holotype No. 1/1972 (obverse and reverse probably of 
hind wing) ; specimen No. 2/1972 (obverse and reverse probably of 
