1964] 
Carpenter and Kukalova — Protelytroptera 
193 
several more in the basal part, which is not preserved. The proximal 
segments show distinct signs of alternation of color. 
The family Blattelytridae is apparently represented in the Lower 
Permian deposit in Moravia. One specimen from this locality con- 
sists of a remigium of a hind wing (text-figure 5), the venation of 
which is so nearly like that of Parablattelytron that we consider its 
family assignment almost certain. Up to the present, however, no 
elytra have been found in the Moravian deposit which can be 
associated with this hind wing. 
Family Megelytridae Carpenter 
Megelytridae Carpenter, 1933, Proc. Amer. Acad. Arts Sci. 68:476 
This family is still known only by the type specimen of Megelytron 
robustum Tillyard, from the Elmo locality. Examination of this 
fossil (Peabody Museum, Yale University) in the light of the 
additional and related Protelytroptera now at hand, convinces us 
that the sutural margin is present and that the venational pattern 
is quite different from its representation in Tillyard’s figure. The 
fossil is actually very poorly preserved and the venational details can 
be ascertained only with great difficulty. The family may now be 
characterized as follows: elytron thin, only slightly convex; costal 
expansion not developed as a distinct lobe; costal area uniformly 
broad; R very strong; Rs arising in distal part of wing, branched; 
M and CuA apparently unbranched ; CuA and M coalesced basally, 
separating just before mid-wing; several indistinct, oblique veinlets 
in the costal area and weak, widely spaced cross veins in other 
regions of the wing; elytron with a dense cover of fine hairs. The 
hind wing is unknown. 
Megelytron robustum Tillyard 
Text-figure 6 
Megelytron robustum Tillyard, 1931, Amer. Journ. Sci. 21:247. 
A drawing of the type specimen is given in text-figure 6. The 
fossil consists of the two elytra folded back over the body; the pro- 
notum and two of the fore legs are preserved. This is the only 
specimen so far described which shows the position of the elytra at 
rest. As indicated in the drawing, the sutural margins of the elytra 
overlap. The venation is very poorly preserved and both Tillyard 
(1931) and Carpenter (1933) were misled by the appearance of a 
coarse reticulated network in the distal part of the elytron, as well 
as by the apparent existence of weak veins in the anal region. Re- 
