1964 ] Carpenter and Kukalova — Proteiytroptera 187 
Apachelytron, new genus 
Elytron: costal margin convex; Sc well developed, apparently 
extending well beyond mid-wing; Rs arising in the distal part of the 
wing, with several branches; Cu dividing into CuA and CuP remote 
from the wing base; CuA forking below origin of Rs, each division 
with several branches; CuP nearly straight; about 4 anal veins, all 
simple; cross veins well developed over all the wing, mostly straight, 
except in the region of Rs; no anastomosis of cross veins. 
Hind wing: Rs arising well beyond mid-wing, with all its branches 
distal and directed towards anterior margin; CuA diverging before 
fork of M ; CuA + M with several cross veins directed posteriorly 
to CuP+iA; cross veins present between iA and 2A. 
Type-species: Apachelytron transversum, n. sp. 
Apachelytron transversum, n. sp. 
Text-figure 3; plate 22 
Length of right fore wing (elytron), 6 mm.; width, 2.2 mm.; 
length of right hind wing, 7 mm. Since only one specimen is known 
and since the venation in the Proteiytroptera is unusually variable 
(Carpenter, 1936), the specific characteristics designated are neces- 
sarily arbitrary. In this category we consider the following: Rs 
forked, each of the main branches dividing again at least once; CuAi 
with fewer terminal branches than CuA2. Other details are shown 
in text figure 2. 
Type: specimen no. 47/1964, Department of Paleontology, Charles 
University, Prague, Czechoslovakia. Collected by A. Havlatova in 
Lower Permian (Autunian) clayey shale, near Obora, Boskovice 
Furrow, Moravia, Czechoslovakia. The type specimen is remark- 
ably well preserved, as shown in plate 1. Although the insect as a 
whole is seen in ventral view, there seems to be slight twisting of 
the abdomen. 3 Not enough of the head is clear to permit an estimate 
of the size and shape. The pronotum is partially preserved ; it appears 
to be about as broad as long, with the posterior angles more rounded 
J This fossil shows a type of distortion not uncommon in specimens found 
in the clayey shale of the Obora locality; the distortion probably results 
from small rock movements associated with post-Paleozoic folding in the 
Boskovice Furrow sediments. The effect of this is to cause, in the specimen 
of A. transversum, an elongation of the wings along the longitudinal axis 
of the body; as can be seen in figure 2, the left hind wing is considerably 
longer than the right one. It is quite likely that the right fore and hind 
wings, which are nearly at right angles to the body, are distorted by having 
a somewhat greater width than in the original insect. 
