90 PROCEEDINGS OF THE NATIONAL MUSEUM vol.93 



12. APLOMYA MITIS (Meigen), new combination 



Tachina mitis Meigen, Systematische Besdireibung der europiiischen zweifliigeli- 

 gen Insecten, vol. 4, p. 335, 165, 1S24 ; vol. 7, p. 256, 16, 1838. 



Parexorista mitis (Meign) Bkauer and Bekgenstamm, Denksehr. Akad. Wiss. 

 Wien, math.-nat. Kl., vol. 58, pp. 319, 325, 1891. 



JSworista mitis (Meigen) Schiner, Fauna Austriaca, Die Fliegen, vol. 1, p. 467, 

 1862. — Bezzi and Stein, Katalog der pallia rktischen Dipteren, vol. 3, p. 244, 

 1907— Baer, Zeitsehr. Angew. Ent., vol. 7, p. 147 (113), 1921.— Stein, Arch. 

 Naturg., Abt. A, Heft 6, pp. 68, 7S, 1924.— Lundbeck, Diptera Danica, pt. 7, 

 p. 320, 1927. 



This species has been introduced into the United States in small 

 numbers as a parasite of the European corn borer. As Aplomya caesar 

 (Aldrich) has been considered to be a synonym of ^1. mdtis (Meigen), 

 it has previously been impossible to state definitely whether A. mitis 

 has actually been established in this country. All the known differ- 

 ences between A. caesar and A. mitis are cited in the key to the species. 



Distribution. — Widely distributed in Europe from France to north- 

 ern Sweden. The species is not common. 



Hosts. — Pyramta nubllalis (Hiibner) 12. Published record: Ca- 

 lymnia trapezina (Linnaeus) (Bezzi and Stein, Baer). 



Remarks. — The differences cited are based on an examination of 

 three males and two females from Paris, France (Parker), furnished 

 by the European Corn Borer Laboratory, Toledo, Ohio; and four 

 males and three females from Lille, France (Thompson), bearing 

 numbers IN. 1.24-2.12, ser. 271, Webster no. 18818, reared from bulk 

 collections of European corn borer. 



On the basis of the small amount of material examined, the writer 

 is unable to state whether Aplomya mitis is established in the 

 United States. The material examined that was reared in the 

 United States from Pyrausta nubilalis, P. penitalis, and P. ainsliei 

 was all referred to Aplomya caesar (Aldrich). 



Commencing in 1928, Aplomya mitis has been liberated in small 

 numbers in 19 localities in the following States: Massachusetts 5, 

 Connecticut 1, Rhode Island 2, New York 4, Pennsylvania 1, Ohio 

 3, Indiana 1, and Michigan 2. Information supplied by the European 

 Corn Borer Laboratory, Toledo, Ohio. 



13. APLOMYA POLITA (Coquillett), new combination 



Exorista polita Coquillett, U. S. Dept. Agr. Div. Ent., Tech. Bull. 7, p. 99, 1897. 

 Zenillia polita (Coquillett) Aldrich and Webrer, U. S. Nat. Mus., vol. 63, art. 17, 

 p. 25, 1924. 



Head with front at narrowest 0.26 head width; frontal row of 

 bristles extending from on a level below base of third antennal seg- 

 ment to three reclinate preverticals; facial ridge bristly on lowest one- 

 fourth; gena one-eighth eye height; face silvery pruinose; third 



