1964] 
Carpenter and Kukalova — Protelytroptera 
185 
Sc, Ri, CuP, 1 A unbranched; CuA usually with three branches; 
CuP markedly concave for its entire length; sutural margin well 
developed, its termination well before the apex; cross veins numerous 
but weakly developed over the entire wing; most cross veins simple, 
some forked or connected by transverse veinlets. Hind wing un- 
known. 
Genus Archelytron Carpenter 
Archelytron Carpenter, 1933, Proc. Araer. Acad. Arts Sci : 68:477. 
Costal margin of elytron strongly convex; Sc weakly developed 
at the base but well formed distally; Rs originating well beyond 
middle of wing; CuA and CuP diverging in basal fifth of wing, 
CuA forked dichotomously near the middle of the wing, the anterior 
branch forking again at about the level of the origin of Rs; CuP 
and the anal veins sub-parallel ; few cross veins connected. 
Type-species: Archelytron superbum Carpenter 
Archelytron superbum Carpenter 
Text-figure 1 
Archelytron superbum Carpenter, 1933, ibid.: 477, fig. 22. 
The specific description originally given is correct with the excep- 
tion of the reference to cross veins, as noted above. In addition, it 
should be pointed out that the oblique vein connecting M to Rs 
in the original figure of Archelytron is almost certainly a cross vein 
(a possibility that was mentioned in the original description) instead 
of part of a branch of M. 
Apachelytridae, new family 
Related to the Archelytridae. Fore wing: almost flat and thin, 
weakly tegminous rather than elytrophorous ; costal expansion well 
developed and distinct; Sc prominent, probably long; main veins 
arising independently from the wing base; CuP strongly concave; 
CuA and CuP arising much as in Archelytridae; CuA with several 
terminal branches; sutural margin wide (length unknown) ; cross 
veins numerous and well developed over wing, mostly regular and 
simple. 
Hind wing: anal fan large, as in Protelytridae ; stem of M inde- 
pendent of R; M forked into Mi and M2 near mid-wing; Mi 
independent of Rs, twigged at wing apex; M2 diverging posteriorly 
and coalesced with CuA to its termination ; base of Cu free from 
the stem of M: iA (convex) fused with CuP distally; 2A (con- 
