68; 



Supplement by R. C. L. Perkins 



to 



ORTHOPTERA. 



Vide pp. I — 1 6 hujus tomi. 



ACRIDIOIDEA. 

 Atractomorpha Sauss. 

 ( I ) Airactomorpka crenaticeps Bl. 

 Hab. Oahu ; now common round Honolulu; first appeared about 1900. 



LOCUSTOIDEA. 



HOLOCHLORA Stal. 



(i) Holochlora veitosa. 



Hab. Oahu ; the eggs inserted in young shoots of trees have been frequently 

 found since 1S96, but the mature insect is still rarely met with. 



The determination of the above species and of the Mantid named below, were, 

 I believe, kindly made by the authorities at the Dept. of Agriculture in Washington for 

 some of the economic entomologists in the islands. 



Braciivmetopa Redt. 

 Brachymetopa blackburni de B. 



Brachynietopa discolor Redt., Perkins, Fauna Haw. 11. p. 9. 



In the Part ' Orthoptera ' of the Fauna I have referred to the peculiar case of 

 B. discolor and B. blackburni, but at the time of publication of that Part I had not 

 sufficient evidence to warrant my uniting these as forms of one species. There is no 

 doubt that they merely represent a striking case of dimorphism. Some years ago 

 I spent two days investigating the matter and carefully examining every mature insect, 

 that I could find. Of twenty-six adult Zi 24 belonged to the van discolor, the brownish- 

 coloured black-faced form. Two males only were the green blackburtii form. One of 

 the latter was so far intermediate as to have a large triangular brownish or darkened 

 area on the face, this marking being characteristic of the distinct Oahuan species 

 B. unica P. 



