The Dermaptera and Orthoptera of Hawaii 
By Morcan HEBARD 
INTRODUCTION 
The acquisition of a collection of Dermaptera and Orthoptera 
from Hawaii first directed our attention to the literature of that 
region bearing on these orders. It was found that the earlier 
literature comprised a paper by Bormans in 1882, one by Brunner 
in 1895, and a number of scattered records and descriptions of new 
species by various other authors. In 1899 Perkins published in the 
Fauna Hawaiiensis a much more complete paper on the Dermap- 
tera and Orthoptera of Hawaii than had previously been possible, 
and in 1910 he published a supplement in the same series. Subse- 
quent to Perkins’s work, Swezey had published detailed and highly 
commendable papers on several species found in Hawaii, and since 
1905 frequent records and notes have appeared in the Proceedings 
of the Hawaiian Entomological Society. 
It is unfortunate that many of the species, particularly among 
the adventive forms, were originally very casually identified. On 
this account a considerable number of species incorrectly appear in 
the literature as occurring in Hawaii, the records being based on 
species that are similar in certain features, but almost all very 
readily distinguishable when compared with material of the forms 
they were supposed to represent. In compiling the previous records, 
Perkins was unable to make the necessary comparisons; as a result 
his work included a large proportion of the earlier errors. 
This situation gradually became clear to us, and we imme- 
diately began to make efforts to examine material of as large a 
number of the Hawaiian species as possible. In this work the 
material in the United States National Museum loaned by Mr. A. 
N. Caudell was of much service, but the prompt and extensive 
assistance furnished by that active and thorough worker, Mr. O. H. 
Swezey, was invaluable. Largely through the aid of Mr. Swezey 
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