April, '02] ENTOMOLOGICAL NEWS. IOI four hind femora black ; middle tibiae above with the basal half and the apical fourth black; legs (except the black j orange fulvous ; wing-veins beyond the cell on both wings covered with black scales. It seems to me that this Xew Mexico insect might fairly be given a distinctive name, but Mr. Beutenmuller, who is the principal authority on this group of moths, has examined a specimen and states that it must be regarded as true Bcnibccia marginata. Nomenclatural Notes on Two Genera of Orthoptera. BY JAMES A. G. REHN. BLATTA. The genus Blatta L/innaeus (Syst. Nat., X ed., p. 424, 17 ^s ' has been subjected to considerable dividing, as has been the case with almost all Linnean genera, but the fact remains that to-day we hardly know to what to apply the name. An ex-amination of the originally included species reveals the fact that the matter can be quickly settled. As the name />'/<'//<? is a classic word, the method of procedure would be similar to that used in the case of Locusta and Tettigonia, recently examined by the author (Canad. Ent., xxxiii, pp. 118-121), the non-exotic species (or rather those treated as such by the original describer) being the only ones to be considered in the process of elimination. The originally included species, with the genera to which they have been removed and the dates of removal, are as follows : Blabcnts Serville {Blabcra auct.), 1831. Hctcrogamia Burmeister, 1 838. snrinamaisis Pycnoscclus Scudder, 1 863. amcricana Peri plane ta Burmeister, 183*. ni-rca Panchlora Burmeister, 1838. afrieana Hctcrogamia Burmeister, i83S. orientalis Stylopyga Fischer v. Wald., i84'>.' :: * Kirby (Proc. Royal Dublin Soc. (n. s.), vi., p. 562) gives the original spelling as Steleopyya, citing Bull. Mosc., vi, p. 356, as the reference. I am unable to examine this work, so I use the generally ao epted form in the paper.
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