The Tachinid Parasites of Archips cerasivorana Fitch. (2) Eusisyropa blanda O. S. (Diptera)

Abstract

This is the species referred to in the first Faper on the parasites of Archips cerasivorana (Can. Ent., Vol. LXXXV, No. 1, pp. 19-30) under the name Zenillia blanda. The genus Eusisyropa was created by Townsend (Smiths. Misc. Colls., Vol. 51, p. 97, 1908) with blanda O.S. as type. In it he also included boamiae Coq.. Aldrich and Webber (Proc. U.S. Nat. Mus., Vol. 63, Art. 7, 1924) placed these in Zenillia R.-D. but most workers agree that they collected a very heterogeneous assemblage of species under this name. As will be explained later, the efforts to subdivide the group on adult characters have not been entirely satisfactory. It seems best to use the restricted genera available until the matter has been studied in detail.