168 



There are no Fiji specimens of this cosmopolitan spe- 

 cies in the collections examined, bnt there can be little 

 doubt but that it occurs in the islands, 



Labidiira riparia (Pallas). 



Forficida riparia Pallas, Reise Russ. Reichs. II, Anh. 



p. 727 (1773). 



For the very extensive synonomy see Burr, Genera 

 Ins. Fasc. 122, pp. 36-37. 



This cosmopolitan earwig most assuredly occurs in the 

 Fiji Islands, although no specimens are at hand from there. 



Chelisoches mono (Fabricius). 



Forjicida morio Fabr., Syst. Ent. p. 270, Xo. 6 (1775). 



For svnonomv see Burr, Genera Ins. Fasc. 122, p. 65 

 (1911). " 



Habitat. — The present species occurs throughout the 

 Oriental region. Specimens are at hand from iSTadi. 

 They were taken during the months June, July and Au- 

 gust, 1913. 



A careful search for Dermaptera over the various isl- 

 ands of the group will undoubtedly result not only in the 

 discovery of the four here listed, but also of several addi- 

 tional forms. 



Review^ of the Autochthonous Genera of Hawaiian 

 Delphacidae. 



BY F. ML' IK. 



"A flood of light may be thrown on the theoretical prob- 

 lem of the origin of species by the study of the proV)able 

 actual origin of species with which we may be familiar or 

 of which the actual history or the actual ramifications may 

 in some degree be traced." — David S. Jordan. 



INTRODUCTORY. 



During the latter half of January, 1915, I accepted an 

 invitation to spend a couple of weeks with Mr. W. M. Gif- 



Proc. Haw. Ent. Soc. Ill, No. 3, September, 1916. 



