2 BULLETIN 83, UNITED STATES NATIONAL MUSEUM. 



SO that those who hold that a genus has no standing until it contains 

 a species may have at hand the date when the genus was definitely 

 established. 



Where more than one writer has designated the type of a genus^ 

 only the earlier designation is recorded, except in cases where more 

 than one species is involved, in which cases the later fixations are 

 indicated so as to show difference of conception with reference to the 

 genera involved. 



Wlierever two or more genera were found to have the same species 

 as genotype the fact is pointed out by the use of the word isogeno- 

 typic a' word coined by Mr. S. A. Rohwer to cover this state of affairs. 



In deciding nomenclatorial issues the writer has been guided by the 

 recommendations of the Code of Zoological Nomenclature enacted 

 by the International Zoological Congress. Where points at issue 

 were not covered by this code the American Ornithologists Union's 

 code was consulted. 



To complete the work an index to genotypes has been added. 



Papers containing descriptions of genera that have remained 

 inaccessible to the writer up to tlie time the manuscript was sur- 

 rendered for publication are, Program Staatsgymnasium Pola, 1895, 

 p. 11, containing the description of Isomecus Kriechbaumer and 

 Holmgren's Novae Species Insectorum, 1880. 



Abanchogastra Pekkins. 



Trans. Ent. Soc. Lond., 1902, p. 141. 



Type. — Abanchogastra dchilis Perkins. (Monobasic.) 

 [Abastus (Le Peletier) Guerin] Nomen nttrfum= Pseudogonalos Schulz, according 

 to Schulz. 



Rev. Zool., 1842, p. 84. 

 Absyrtus Holmgren. 



Svensk. Vet.-Akad. Hand!., vol. 2, (1858) 1860, p. 32. 



Ofvers. Vet.-Akad. Forh., vol. 15 (1858), 1859, p. 323. 



Type. — Absijrt'us luteus Holmgren. (Monobasic.) 

 Abzaria Cameron. 



Biol. Centr.-Amer. Hym., vol. 1, 1885, p. 200. 



Type. — Abzaria latipetiolaris Cameron. (Monobasic.) 

 Acampsis Wesmael. 



Nouv. Mem. Acad. Sci. Brux. vol. 9, 1835, p. 250. 



Type.— Chelonus alteiTiipes Nees. (Monobasic.) 

 Acanthinevania BRADLEY=Evania, according to Enderlein, 1909, and Ivieffer, 1910. 



Trans. Amer. Ent. Soc, vol. 35, 1908, p. 172. Many species. 



Type. — Evania princeps Westwood. (By original designation.) 

 Acanthobracon KRiECHBAUMER=Myosoma Brulle, according to Schulz, 1903. 



Berl. ent. Zeitschr., vol. 45, 1900, p. 100. 



Type. — Acanthobracon lagopus Kriechbaumer.' (Monobasic.) 

 Acanthobracon Szepligeti, not Kriechbaumer=Zombrus Marshall, according to 

 Szepligeti, 1906. 



Term. Fuzet., vol. 25, 1902, p. 47. Three species. 



Type. — Acanthobracon fuscipennis Szepligeti. (By present designation.) 



1 =• Myosoma hirtipes BRULLfi, according to Schulz, 1903; if so then isogenotypic with Myosoma. 



