1903.] NATURAL SCIENCES OF PHILADELPHIA. 177 



A REVISION OF THE ORTHOPTEROTJS GENUS HOMCEOGAMIA. 

 BY JAMES A. G. REHN. 



The present study is based on an examination of forty-nine speci- 

 mens of the genus HomcBogamia, from the collections of the Academy 

 of Natural Sciences of Philadelphia and the United States National 

 Museum. The receipt of an interesting series of specimens from the 

 southwestern United States prompted the author to study the genus 

 in detail. The results are here set forth. 



Probably the most striking thing observed on examination of the 

 literature and the material at hand is the scarcity of females of the 

 genus. This sex is positively known in but three of the six species, 

 and the rather extensive series studied contained but one adult 

 female specimen. 



In the case of known sexes or larvae unrepresented in the series 

 examined, the original description has been translated and placed in 

 the proper position. 



Several forms, in two cases based originally on the larvae, which have 

 not been recognized since the original description, are included at the 

 end of the paper. In these cases the descriptions have not been trans- 

 lated. 



HOMOEOGAMIA Burmeister. 



1838. Homoeogamia Burmeister, Handb. der Entom., Bd. II, Abth. II, pt.l, 

 p. 490. 



1864. Homeogamia Saussure, Mem. J'Hist. Nat. Mexique, IV, p. 226. 



1865. Homoeogamia Brunner, Nouv. S5'st. Blatt., p. 360. 



1868. Polyphaga Walker (not of BruUe), Catal. Blatt. Brit. Mus., p. 13. 



1869. Homoeogamia Saussure, Mel. Orthopt., II, p. 102. 



1870. Homoeogamia Saussure, Miss. Scientif. Mexique, Orth., p. 108. 



1871. Homoeogamia Wall'cer, Catal. Derm. Salt. Brit. Mus., V, Suppl. Catal. 

 Blatt., p. 3. 



1871. Polyphaga Walker (not of Brulle), Catal. Derm. Salt. Brit, Mus., V, 



Suppl. Catal. Blatt., p. 3. 

 1890. Homoeogam.ia Bolivar, Ann. Soc. Ent. France (6), X, p. 137. 



1893. Homoeogamia Saussure, Revue Suisse de Zoologie, I, fasc. 2, p. 294. 



1894. Hom<£ogamia Saussure and Zehntner, Biol. Cent.-Amer., Orth., I, 

 p. 10.5. 



1900. Homoeogamia Scudder, Proc. Davenport Acad. Nat. Sci., VIII, p. 11. 



1900. Homoeogamia Rehn, Trans. Amer. Ent. Soc, XXVII, p. 85. 



1901. Homoeogamia Rehn, Trans. Amer. Ent. Soc, XXVII, p. 220. 



1902. Homoeogamia Scudder and Cockerell, Proc. Davenport Acad. Sci., 

 IX, p. 19. 



1903. Homaogamia Rehn, Proc. Acad. Nat. Sciences Pliila., LIV (1902), 

 p. 717. 



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