93 N S. HEMIPTERA. "-^/^v. By G. W. Kirkaldy. '""''•t' Sj 1. General Remarks. The Heteropterous Hemiptera or Rhynchota of the Hawaiian Archipelago have been studied to a small extent by F. B. W. White and T. Blackburn, on the collections made some quarter of a century since by the latter. In iS88 the total number recorded was 26 genera and 48 species'. To-day 43 genera and 64 species are recorded. The Auchenorrhynchous Homoptera were not dealt with by the British authors, but a few species were noted by C. Stal and V. Signoret, in all 3 genera and 4 species. Five genera and 14 species are here catalogued, and this will be materially increased when my studies on the Jassinae and Asiracinae are completed. Of Stenorrhyncha nothing was previously known, and only 2 genera of Psyllidae, with a single species each, are added. I know of no records of Aphidae and have seen no specimens. I have not examined any Coccidae and am principally indebted to the publications of T. D. A. Cockerell and W. M. Maskell for the records of the 48 species included in this account. Thus the total number of Rhynchota — both Heteroptera and Homoptera — amounts at present to 126 species, of which at least one-third are recent introductions. My best thanks are due to Dr Sharp for his unfailing courtesy and kindness in giving me information upon every topic connected with the Hawaiian Fauna, while Dr L. O. Howard was so kind as to advise me regarding records of Hawaiian Stenor-rhyncha. Mr Edward Saunders also gave me some very valuable help in lending me for examination and comparison certain Palaearctic Miridae and in affording me much information. My greatest difficulty has been the inability to examine the type-specimens of the previously described Hawaiian Fauna, as the Directors of the Perth Museum — where White's types, now unfortunately in bad condition, repose — refused to allow these specimens to be taken away for study. Dr Aurivillius however sent me, with his usual kindness, the types of Oechalia patruelis ■d.wdi pacific a Stal, Hyalopcpliis pcllucidtis Stal, and Nysiiis cacnosiihis Stal. Mr Blackburn also kindly sent for examination cotypes of his Nabis rubritinctus, koelensis and oscillaiis, but I regret that these completed the list of all that he was able to send me. ' According to ilieir supposed validity at the present time.