526 University Geological Survey of Kansas. 
reaching to near the apex and giving off five or six simple or 
forked branches, the first of which originates beyond the basal 
third of the wing. The media and its branches fill the apex. 
The branches are simple, long, parallel. The cubitus is long, 
reaching along the inner border almost to the apex. Its nu- 
merous branches are mostly simple. The anal area is well 
marked off, concave, and has six to nine simple veins. Length 
of tegmina, 9 to 11 mm.; width, 3 to 3144 mm. 
Six specimens of this species have been found. The species 
is easily recognized by the small, compact tegmina with nu- 
merous veins. There is considerable variation among the sev- 
eral specimens referred to the species, and possibly more than 
one species is represented. Nos. 850 and 1011 are smaller and 
have shorter subcosta and more numerous veins. 
Formation and locality: Wellington shales, Banner City; 
Nos. 123, 476, 850, 1011, 770, 463, 656, 1008, author’s collec- 
tion. 
Puknoblattina curvata sp. n. Pl. LXXIII, fig. 3. 
Wings strongly arched. The subcosta reaches to the middle 
of the wing and is supplied with several branches. The ra- 
dius reaches nearly to the apex and has numerous superior 
branches. The media curves downward strongly and has 
strong parallel branches. The cubitus is curved and has 
strong parallel branches. 
Formation and locality: Wellington shales, Banner City. 
NYMPHS OF COCKROACHES. 
The most abundant type of nymph cockroaches at the Law- 
rence locality is the form previously described (Amer. Jour. 
Sci., vol. 18, p. 131, text figs. 17 to 21, 1904) under the term 
Etoblattina juvenis. The abdomen of this type is large and 
broad, the terga have well-developed free edges, and the. 
sterna have rounded corners. Two instructive individuals of 
the species lying on a small slab are shown in their relative 
positions in figure 7, plate LXXVI. The dorsal integument of 
the nymph at the right of the figure is broken down the center, 
thus exposing the basal elements of the legs. The basal part 
of the ovipositor, 9 mm. long, is preserved in place on this 
specimen. Parts of the body are scattered about on the slab. 
Detached terga, with their pointed edges, and one of the 
sterna, with rounded edges, are seen lying between the two 
nymphs. The nymph on the left of the figure is more nearly 
