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Oil a new spevies oj' Pkoi'AI/i'icus fnm iWiv Gvlrwn : l)y 

 D. Sua UP. 



Wheu workiiiii' out some of the minute and difficult forms of 

 Coleoptera found Ly Mr. Blackljurn in tlie Hawaiian islands, 

 one of the sj^ecies that uave me most trouble was the insect I 

 named Propalticus ocidatns (Tr. Ent. Soc., Lon., 1^79, p. 8<S). 

 This little creature 1 found to be very different from any known 

 form, but nevertheless I believed it to l)e, like a great number of 

 other species, an introduction to the archipelago ; in}' principal 

 reason for this being that it has no congeners or near allies in 

 the archipelago, whereas I believe it will be I'ouud that the irul)' 

 aboriginal species of the islands always form clusters, or as it 

 were, present us with a miniature fauna comparable in many 

 respects, if not in all, with the fauna^ of larger regions, such as 

 NeAV Zealand and Australia. I was not very surprised, there- 

 fore, when I received a few^ weeks since from my friend, the 

 Rev. A. Matthews, of Gumley, a little beetle that had much 

 puzzled him, and which I immediately recognized as a near ally 

 of Propalticus oculaius. Mr. MatthcAvs's sjiecimen Avas captured 

 by Mr. Wallace in New Guinea, and its preservation is due to 

 Mr. Janson, who, at the time Mr. Matthews was preparing his 

 monograph of the Trlelioptenjgida', forwarded this mite lo him. 

 thinking it might possibly have some connection with the family 

 I have just named; Mr. Janson ])robably being led to this 

 opinion by the minute size, and by the structure of the antenna', 

 and also by the fact that the creature had no special resemblance 

 to anything else. With a vicAV of recording that this genus is 

 a Papuan one, I have briefly characterised the species and 

 adopted the trivial name of Jansoni, proposed for it by Mr. 

 ]\Iatthews. I will also take this opportunity of making an 

 additional leniark as to the systematic position of P/'opfiltiffi,^, 

 having the pleasure of recording the results of an examiualion 



