1910.] NATURAL SCIENCES OF PHILADELPHIA. ON THE ORTHOPTERA OF BERMUDA. BY JAMES A. G. REHN. In the spring of 1909 the Academy received from Mr. Frank M. Jones a collection of Bermudan Orthoptera which had been secured by him during a residence of some months in the islands. This sending was supplemented later by several others, the whole series, while not large, being of considerable interest, as Mr. Jones endeavored to secure every species seen during his stay, which lasted from Decem-ber, 1908, to the latter part of April, 1909. The examination of the literature on Bermudan Orthoptera demonstrated how imperfect and unsatisfactory was the last summary of the Bermudan repre-sentatives of the order, that of Verrill. In consequence the pub-lished records were gathered together, the determinations of necessity being given as recorded unless the synonymy was well known and established, the results of the material on hand and the published records being incorporated into the paper here presented. Twenty-eight species are here recorded, of which two taken from previous authors have only generic reference. A tabulation of the species according to their distribution (omitting the two without specific identification) gives the following results: Peculiar to Bermuda 2 Tropical and subtropical America 2 South America, Antilles and Bermuda ] North America and Bermuda 5 Circumtropical 3 North America, West Indies and Bermuda 3 Cosmopolitan 5 All America 2 North America, Bahamas and Bermuda 1 North America, Mexico, Cuba, Bahamas and Bermuda 1 North America, Mexico and Bermuda 1 From this it would appear that the greater portion of the Qrthop-terous fauna of the region is closer related to that of the mainland than to that of the Antilles, excluding, of course, from consideration the cosmopolitan and circumtropical forms, which probably have been introduced bv commerce.