New Species of Sierola With Explanatory Notes 
By Davin T. FutLaAway. 
INTRODUCTION. 
The genus Sierola was established by Cameron in 1881,’ to 
receive a bethylid sent from the Hawatian Islands by the Rev. 
Thomas Blackburn. Only one species was originally included, 
which was later designated by Ashmead? as the type. Two addi- 
tional species were described by Cameron* from Blackburn’s collec- 
tions in 1886, and in 1901 Ashmead* described five more, from the 
collections made by Dr. R. C. L. Perkins under the auspices of the 
Bernice Pauahi Bishop Museum, Royal Society of London and 
British Association for the Advancement of Science. In 1910 
Perkins® described another, bringing the number of species from 
Hawaii to nine. 
Dr. Perkins,® in the Introduction to the Fauna Hawaiiensis, 
stated: ‘The species of Sierola are apparently somewhat variable 
and not always easily distinguished and | rather suspect that they 
were more numerously represented in my collections than is shown 
by Ashmead’s discrimination of them.’ After several years of 
study of examples of Sverola, lent me by different collectors in 
Hawaii, | am convinced that the suspicions entertained by Dr. 
Perkins were well grounded, for out of five hundred specimens 
examined I am able to distinguish one hundred and seventy-one 
distinct forms, which I am herewith describing as new species, or 
subspecies, providing a table for their separation from each other 
and from the only other species known to me, Sierola dichroma 
Perkins. 
I regret that I am unable to see the types of the species 
described by Cameron and Ashmead, for it is more than likely that 
some of their species are re-described by me. Their descriptions 
are inadequate, and could be applied to a number of distinct 
1Trans. Ent. Soc. Lond. 1881, p. 556. 
SBuls 45, 0. ws. Ne ME. “p: 55. 
3 P. Manch. Soc. XXV, p. 176-177; Mem. Manch. Soc. (3) X, 1886, p. 237-238. 
* Fauna Hawaiiensis I (3), p. 290-292. 
5 Fauna Hawaiiensis II (6), p. 614. 
®* Fauna Hawaiiensis I (6), p. XCIX. 
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