NORTH AMERICAN TWO-WINGED FLIES OF THE GENUS 

 SPATHIMEIGENIA, WITH DESCRIPTIONS OF FIVE 

 NEW SPECIES 



By J. M. Aldrich 

 Associate Curator, Division of Insects, United States National Museum 



The present paper contains a discussion of the generic characters of 

 the tachinid genus Sj^athimeigenia^ keys for separating the species 

 in both sexes, and descriptions of five new species, with notes on the 

 six heretofore known. 



I am under obligations to the authorities of the American Museum 

 of Natural History and of the Massachusetts Agricultural College 

 for the privilege of examining types of species not found in the 

 United States National Museum ; to Dr. Alf ons Dampf , of the Oficina 

 Federal para la Defensa Agricola, Mexico City, Mexico, for permis- 

 sion to retain for the National Museum a series of specimens of the 

 new species S. mexicana; and to William Middleton, of the United 

 States Bureau of Entomology, for revising the nomenclature of the 

 sawflies involved. 



Genus SPATHIMEIGENIA Townsend 



Spathimeigenia Townsend, Proc. Biol. Soc. "Washington, vol. 28, p. 19, 1915. — 



CuTvBAN, Can. Ent., vol. 62, p. 246, 1930. 

 Hylotomomyia Townsend, Insecutor Inscitiae Menstruus, vol. 4, p. 31, 1916. 



Townsend established the genus Spathmieigenia in 1915 by assign- 

 ing as type the species which Coquillett had erroneously identified 

 as Tachina demylus Walker {Admontia demylus Walker of Coquil- 

 lett ^). Believing that Coquillett 's species was not the true demylus^ 

 Townsend named it spinigera, designating one of the Coquillett 

 specimens as type. On examining the type of Tachina demylus in 

 the British Museum, I found it to be a Cryptomeigenia^ leaving the 

 name spinigera valid for Coquillett's species. Townsend gave no 

 description of the genus and species. 



1 Revision of the Tachinid.ae of America north of Mexico, U. S. Dept. Agr., Div. Ent., 

 Tech. Ser. No. 7, p. 54, 1897. 



No. 291 1.— Proceedings U. S. National Museum, Vol. 80, Art. 1 1. 



70407—31 1 



