89 



specimens of a lagre red-brown Julid (Myriapod), not recorded 

 in the "Fauna Hawaiiensis," and a recent introduction. 

 Dr. Perkins made the following three exhibits : 



(1) A Jassid, common on the mountains near Honolulu, of a 

 pale yellow or bone colour, is remarkable for the fact that the 

 male has a pronounced pattern of black markings while the female 

 is unicolorous. Rarely the male is like the female, without a 

 pattern. Still more rarely it has the pattern much reduced; the 

 female on the other hand appears very rarely indeed to have 

 black markings. Other Hawaiian Jassids exhibit a similar 

 striking sexual dichromatism. Elsewhere the phenomenon seems 

 not to be common, as I can only recall one species of Jassid 

 amongst our large Australian material that exhibits it, the very 

 abundant green Nephotettix apicalis (Motschulsky) . 



(2) A species of Reduviolus (R. ruhritinctus Kirkaldy, but 

 probably not R. ruhritinctus of Blackburn) is as is well known, re- 

 markable for the incrassate basal joint of the antennae. 

 Recently on picking up a specimen on Tantalus I noticed with 

 the naked eye a peculiar projection on the head and on examin- 

 ing this at home with a lens I saw that it was one of two stout 

 blunt spines, there being one of these on each side of the head 

 in front of the insertion of the antennae. Blackburn makes no 

 mention of these spines in his long description of the unique type, 

 and as his example was from Maui, while all those mentioned in 

 the "Fauna Hawaiiensis" were from Oahu, it is probable that 

 these are distinct. There is no such structure in any other 

 Hawaiian Reduviolus that I possess here. 



(3) A collection of over fifty species of bugs recently col- 

 lected at Kilauea, Hawaii. 



The President then read the annual address: 



Insects at Kilauea, Hawaii. 

 By R. C. L. Perkins, D. Sc. 

 In last year's address I gave an account of the insect fauna 

 of a portion of the main mountain range of Oahu, to illustrate 

 in a general way what one may expect to find in a reasonably 

 good locality on the leeward side of the less lofty mountains, 

 such as are found on Oahu, Kauai and Molokai. Tonight I 

 will speak of the insects that are found in the vicinity of the crater 



