1967] 
Carpenter — Carboniferous insects 
73 
but the basal part of the hind margin has a few well-developed ser- 
rations or heavy stout spines, projecting apically. 
( 3 ) The cross veins. These have been the source of considerable 
confusion. Several distinct cross veins in the pigmented area of the 
wings have been represented in the drawings of virtually all previous 
accounts. They appear to be absent from the light or hyaline areas 
of the wings but I suspect that this is due to the failure of the cross 
veins to show up in a hyaline area. Bolton was of the opinion, how- 
ever, that the wing did not, in fact, have color-bands and that the 
light areas were the result of the wing membrane’s being destroyed 
in those areas. However, the uniformity of the pattern of these dark 
and light areas in the dozen specimens which have now been found 
refutes Bolton’s theory; furthermore, the presence of the very fine 
cross veins on the light areas shows that the wing membrane is 
actually preserved there. The fine indistinct cross veins were noted 
by Scudder (1883, p. 236) as being “transverse to the nervures they 
connect, pretty regularly and uniformly distributed over the wing”, 
and Handlirsch (1919) represents them in a few of his figures, al- 
though they were not mentioned by Bolton (1921). The effect of 
these numerous, fine transverse veins is to produce a wrinkled ap- 
pearance on the wing membrane (see figure 2, plate 1 1 ) . They are of 
special significance in view of the presence of a distinct archedictyon in 
Eubrodia ; it is my belief that these are vestiges of the archedictyon 
which are in the process of being lost and replaced by heavier cross 
veins. 
Eubrodia, new genus 
Wing: almost certainly petiolate, as in Brodia, but broadest be- 
yond the middle; pattern of main veins much as in Brodia', no prom- 
inent cross veins as in Brodia ; a fine archedictyon developed over 
most areas of the wing; in areas just basal and proximal to the mid- 
wing the archedictyon is absent, the cross veins forming a course 
reticulation. 
Type-species: Eubrodia dabasinskasi , n. sp. 
Eubrodia dabasinskasi, n. sp. 
Plates 12 and 13; text-figs. 4B 
Wing length as preserved, 48 mm., maximum width, 15 mm.; 
estimated length of complete wing, 55 mm. The costal margin is 
slightly concave at about mid-wing, the pterostigmal area being 
