34 



species now found on the Islands, but it might be the C. oceanica 

 of Walker, gathered by the Beechey expedition three quarters of 

 a century ago. If not, it is no doubt new, and in any case interest- 

 ing. The Coleoptera are represented by the two Cossonidae from 

 Midway, the first being identical with the unique specimen from 

 Lanai described by me in the Fauna Hawaiiensis ; the second is 

 a commonplace Pentarthrum, possibly the common P. obscurum 

 of these Islands. I advised Mr. Wilder not to collect the Dermes- 

 tids found in dead birds, the Sarcophagid flies, etc., as I had pre- 

 viously seen such from Laysan and they were of little interest, 

 though most abundant there. But for this he would no doubt 

 have obtained more specimens and species in spite of the limited 

 time. 



Mr. Perkins further exhibited six female specimens of Redu- 

 violus, two from Oahu, two from Molokai, and two from Hawaii. 

 He said that according to Mr. Kirkaldy's views in the Fauna 

 Hawaiiensis these would all be placed under R. lusciosus, but that 

 in his opinion these six individuals represented four distinct spe- 

 cies, since they exhibit marked differences in the structure of the 

 terminal segments. It was observed that while the two Oahu 

 examples agreed together exactly, as also did the two from Molo- 

 kai, the two from Hawaii were not alike, and were also unlike 

 those from Molokai or Oahu, and that these sexual differences 

 were accompanied by other auite evident but more superficial dis- 

 tinctions in each case. 



Mr. Perkins also exhibited two specimens and drawings of a 

 Chalcid parasite, and its host, an Australian Jassid leaf-hopper, 

 being one of the two species of Chalcids known to be parasitic on 

 nymph or adult hoppers. The form exhibited represents a new 

 genus and species, which he proposed to describe as Ncocladia 

 hoivardi. 



DECEMBER 7th, 1905. 



No regular meeting was held on this date, owing to the lack 

 of a quorum. 



