April, '02] ENTOMOLOGICAL NEWS. lOI 



four hind femora black ; middle tibiae above with the basal 

 half and the apical fourth black ; legs (except the black) 

 orange fulvous ; wing-veins beyond the cell on both wings 

 covered with black scales. It seems to me that this New 

 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 Bembecia marginata. 



Nomenclatural Notes on Two Genera of Orthoptera. 



By James A. G. Rehn. 

 BLATTA. 



The genus Blatta I^innaeus (Syst. Nat., X ed., p. 424, 1758) 

 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 Blatta 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 proce.ss 

 of elimination. 



The originally included species, with the genera to which 

 they have been removed and the dates of removal, are as 

 follows : 



gigantca — ^/a^^rw.y Serville {Blabera auct.), 1831. 



(sgyptiaca — Heterogamia Burmeister, 1838. 



surinamensis — Pycnoscehis Scudder, 1863. 



a?)icrica7ia — Periplaneta Burmeister, 1838. 



nivea — Pa^ichlora Burmeister, 1838. 



africana — Heterogamia Burmei.ster, 1838. 



orientalis — Stylopyga Fischer v. Wald., 1846.* 



* 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 

 arn unable to examine this work, so I use the generally accepted form in 

 the paper. 



