2 PROCEEDINGS OF THE NATIONAL MUSEUM vol.80 



control of various injurious species of Lepidoptera. The types of 

 most of the previously described species of Macrocentrus have been 

 examined. I have not, however, seen the type of nigHdorsis Viereck, 

 which is in the Canadian National Collection at Ottawa; that of 

 iridescens French, the location of which is unknown to me ; or those 

 of the four species described by Provancher, namely, unifonnis, 

 pectoralis, mellipes, and longicornis, which are in the Museum of 

 Public Instruction at Quebec, although notes made several years 

 ago by S. A. Rohwer on the types of the Provancher species have 

 aided materially in the identification of some of these. It has been 

 found impossible to identify nigrido7'si8, iridescens, and pectoralis 

 with certainty, but the apparent position and relationships of each 

 of these will be discussed. 



Owing to the little taxonomic attention that has been given this 

 genus in recent years, it has become necessary to describe 20 new 

 species in connection with this revision. The types of 19 of these are 

 in the United States National Museum, while that of one species is 

 in the collection of the Boston Society of Natural History. 



Family BRACONIDAE 

 Subfamily Macrocentrinae 

 Genus MACROCENTRUS Curtis 



Macrocentrus Cubtis, Ent. Mag., vol. 1, p. 187, 1833. (Genotype, Macrocentrus 

 bicolor Curtis= Macrocentrus thoracicus (Nees).) 



Amicroplus Foebste31, Verb, naturh. Ver. preuss. Rheinlands, vol. 19, p. 256, 

 1862. (Genotype, Rogas collaris (Spinola) Nees.) 



Fhogra Cameron, Trans. New Zealand Inst., vol. 33, p. 104, 1901. (Genotype, 

 Fhogra ruhromaculata Cameron.) (New synonymy.) 



DoUchozele Viereck, Proc. U. S. Nat. Mus., vol. 40, p. 182, 1911. (Genotype, 

 DoUchozele koebelei Viereck.) (New synonymy.) 



Metapleurodon Endebuein, Arch. Naturg., vol. 84A, pt. 11. p. 213, 1920. (Geno- 

 type, Metaplourodon ceylonicus Enderlein.) (New synonymy.) 



Paniscozele Enderlein, Arch. Naturg., vol. 84A, pt. 11, p. 214, 1920. (Geno- 

 type, Paniscozele sumatrana Enderlein.) (New synonymy.) 



Most workers in the Braconidae have recognized the close relation- 

 ship between M acrocentr'us and Zele, and since the publication of 

 Foerster's classification ^ in 1862 the two genera have constituted the 

 basis of a distinct major division of the Braconidae. Ashmead ^ 

 divided his subfamily Macrocentrinae, which corresponds to the 

 Macrocentroidae of Foerster and the Macrocentrides of Marshall,^ 

 into two tribes, the Macrocentrini and the Zelini, with Macrocen- 

 trus and Zele, respectively, the typical genera. And although they 



»Verh. naturh. Ver. preuss. Rheinlands, vol. 19, p. 256, 1862. 

 » Proc. U. S. Nat. Mus., vol. 23, p. 118, 1900. 

 ' Trans. Ent. Soc. London, 1885, p. 10. 



