New Species of Sierola With Explanatory Notes 



l'.\ Uavid T. Full.\\\a\. 



INTRODUCTION. 



The genus Sierola was established by Cameron in 1881/ to 

 receive a bethyUd sent from the Hawaiian 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 live 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 I 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 Sierola, lent me by different collectors in 

 Hawaii, I 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 (^ther 

 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 



^ Trans. Ent. Soe. Lond. 1881, p. 556. 



= Bul. 45, T S. X. .M.. p. 55. 



•'P. Manch. Soc. XXV, p. 176-177; Mem. Mancli. Soc. (3) X, 1886, p. 237-238. 



'Fauna Hawaiiensis I (3), p. 290-292. 



° Fauna Hawaiiensis II (6), p. 614. 



"Fauna Hawaiiensis I (6), p. XCIX. 



1 ?, 1 (57) 



