154 E. II. Sellards — Types of Permian Insects. 



is apparently with the sector. The cubitus has several weak, 

 inferior branches. A complete interruption of the veins 

 occurs at the cross line in this genus. The apical part of the 

 wing is traversed by numerous simple, parallel veins. 

 Length of wing, 8 mra ; width, 3 mm . Type, No. 1126. 



Sindon speciosa gen. et sp. n. Text figure 1. 



The costal border of the wing of species of this genus is 

 slightly arched. The radial sector in the type species is 

 divided into several branches, each of which is forked at the 

 tip. The media is two branched. The cubitus has numerous 

 strong arched parallel branches. The interruption of the veins 

 at the middle of the wing is much less marked than in the 

 genus Pursa. Cross veins are numerous in the basal half of 

 the wing, but are lacking in the apical half. 



Length of wing, 8 mm ;' width, 2J mm . Type, No. 85. 



Protorthoptera. 

 The Protorthoptera although more primitive are in a general 

 way related to modern Orthoptera. The venation of the front 

 wing, while specialized in various ways, is still of a compara- 

 tively generalized type, the main veins of the wing being as a 

 rule readily recognizable. The hind wing is broader than the 

 front ; the anal area expanded and folded. This group of 

 insects is predominant in the Kansas Permian deposits, both 

 in number of species and of individuals. 



Lepiidw, family new. 



The front wings of the Lepiidse are elongate, and of 

 coriaceous texture. The main veins are strong and are plainly 

 impressed in the thickened membrane. The interspaces between 

 the veins are filled with a net-work of areoles, the lines, when 

 seen from the top surface, showing as ridges on the membrane. 

 The subcosta lies close to the radius and extends to or beyond 

 the middle line of the wing. The radius gives off oblique 

 branches beyond the termination of the subcosta. The sector 

 is free and two or three branched. Media is also free and 

 several times branched. Cubitus divides early in the front 

 wing, the inner branch being simple. The main branch of the 

 cubitus, Cu n is directed toward the inner border, but after 

 approaching the border bends abruptly forward, and extends 

 parallel with the border beyond the middle line of the wing, 

 giving off several inferior branches. The anal area is marked 

 off by a thin line and is traversed by two simple veins. 



The hind wings are broad, the anal area expanded and folded. 

 The folded part of the wing is thin, the areoles lacking. The 



