360 CORAL AND ATOLLS 



" which is considered by the residents to have most injurious 

 properties" ("Monograph of Christmas Island," p. 107). 



LONGICORNIA. 



(14) Ceresium simplex, Gyll. 



Rare. Not found on Christmas Island, but two repre- 

 sentatives of the genus — C. quadriwaculattim, Gahan, and 

 C. nigrum, Gahan — were taken there by Dr. Andrews. 



(15) Calocyclus annularis, Fabr. 



Only one specimen taken, flying in the sunshine, on 

 March 1, 1906. Does not occur on Christmas Island. 



(16) Rhopica honesta, Pasc. 



(17) Rhopica binotata, Gahan. 



Both unique specimens. The genus is not represented on 

 Christmas Island. 



Seventeen species of beetles therefore occur on the Cocos- 

 Keeling group, and only one — a cosmopolitan species — is 

 definitely known to be also an inhabitant of Christmas Island, 

 although the coleopterous fauna of that island embraces ninety- 

 five species. 



RHYNCHOTA. 

 By W. L. Distant, F.E.S. 



Suborder Heteroptera. 



Fam. Pentatomidj£. 

 Subfam. Cydnin^. 

 (1) Geotomus pygm^us. 

 jEthus pygmceus, Dall. List Hem. i. p. 120 (1851). 



