1976] 
Carpenter — Permian Insects 
353 
veins between R and RS; RS with at least 4 primary branches; 
MA not coalesced with RS basally but often connected to it by a 
short cross vein; CUA with a distinct fork. Hind wing and body 
unknown. 
This family is known from the Upper Permian of USSR and 
Australia. 
Elmothone, new genus 
Fore wing: costal margin straight, nearly parallel to SC; wing 
apex apparently broadly rounded. Costal area not as broad as 
in other known genera of the family; RS forking shortly after its 
origin and having at least 7 primary branches. M (and MA) re- 
mote from RS, forking shortly beyond the origin of RS, and with 
at least 7 subsequent forks; CU remote from M basally but CUA at 
its origin directed sharply towards M and connected to it by a 
short cross vein; CUP ending in a long, sigmoidal cross vein; the 
rest of the area between CUP and 1A having several other sig- 
moidal cross veins. 1 A deeply forked. Cross veins in general weak 
and irregularly distributed. 
Type-species: Elmothone martynovae, n.sp. 
The generic name is derived from Elmo, the name of the town- 
ship in Kansas in which the insect beds are located, and the generic 
name Ithone, which is feminine. 
Elmothone martynovae, n.sp. 
Figure 1 1 
Fore wing: length (as preserved), 13 mm; maximum width, 5 mm; 
R1 very nearly straight; posterior branch of M with 4 subsequent 
forks. Venational details are shown in figure 1 1. 
Holotype: No. 5585ab, Museum of Comparative Zoology. 5 This 
consists of an incomplete wing, lacking about the basal quarter 
and part of the hind margin. The longitudinal veins, for the most 
part, are clearly preserved but the cross veins are indistinct, except 
under oblique light. The relatively narrow and uniform width of 
the costal area is suggestive of a hind wing. However, the hind 
wings are entirely unknown in the Permithonidae, and the struc- 
5 This is the fossil mentioned by MacLeod in his account of the Neuroptera of the 
Baltic amber (1970, p. 147). 
