CHAPTER XI, 
COCKROACHES OF THE KANSAS COAL MEASURES AND 
OF THE KANSAS PERMIAN. 
BY E. H. SELLARDS. 
Introduction. 
AMONG a small lot of fossil plants obtained in 1878 or 1879 
from the old fair-grounds one mile east of Lawrence, 
Kan., by the early geologist and collector, Mr. Joseph 
Savage, was found a single cockroach wing. This specimen, 
sent on with the plants to Lesquereux, and subsequently de- 
scribed by Scudder (Mem. Bost. Soc. Nat. History, vol. 4, No. 
9, p. 410, pl. 32, fig. 4, 1890) as Htoblattina occidentalis, re- 
mained for more than twenty-one years the only fossil insect 
known from the Kansas Paleozoic. During the spring of 1901 
insects were rediscovered in the Le Roy shales on the Haver- 
kampf farm, three miles southeast of Lawrence. They were 
found here among a small lot of fossil plants collected from this 
locality by Mr. H. T. Martin and the writer. It was found 
later that the Le Roy shales held insects in various localities 
about Lawrence. A single cockroach wing and fragments of 
a second wing had been previously found by the writer among 
Permian plants collected in 1900 from the Wellington shales of 
Dickinson county, Kansas. No opportunity to revisit the Per- 
mian locality presented itself until the summer of 1902, at 
which time the writer discovered a horizon in the Wellington 
shales exceptionally rich in insects. From these localities has 
been brought together the material forming the basis of the 
present paper. 
The Coal Measures collections are the following: One lot 
of 228 specimens (170 cockroaches) obtained by the Kansas 
University ‘Geological Survey during the summer of 1901.2% 
This collection is deposited in the museum of the University of 
Kansas. A second lot of 61 specimens (42 cockroaches) was 
304. The members of the Geological Survey party making this collection were H. T. 
Martin, Sydney Prentice, and the writer, and, in addition, during a part of the time, Dr. 
Ss. W. Williston, Walter Meek, E. E. Brown, and D. F. McFarland. 
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