REVIEW OF THE NEARCTIC TETANOCERID^.* A. L. Melander, Pullman, Washington. The flies of this family are commonly encountered in meadows and along marshy shores, some species being quite abundant. Their delightful colors, with prevailingly reddish body and frequently pictured wings, make them preferred insects with collectors. As their nomenclature has passed through such revolutionary changes since the publication of Aldrich's Catalog, fifteen years ago, the writer prepared a synopsis of the group to help with their identification. As a curious coincidence, about six months after the manuscript was sent away for publication, an unexpected revision of the same group by E. T. Cresson, Jr., appeared in the Transactions of the American Entomological Society. The publication of several of the new genera and species diagnosed in my manuscript made it necessary to recall the copy from the editor and to revise it. To make the tables complete, Cresson's new genera and species and additional localities cited by him have been incorporated. I am also indebted to Cresson for the information concerning the prior use of Eiithycera Latreille over Lunigera Hendel. Aside from these changes, the nomenclature previously decided upon I have retained. A comparison of the two papers will dis-close a few instances where we do not agree. Most of these concern the identification of European species. It is interesting to-note that independently, without knowing of the other's work, we both arrived at the same conclusions so many times. For example, Mr. Cresson's new genera, Hoplodictya and Dictyomyia, based on previously known species, were likewise described as new by me. Mr. Cresson's studies were based mainly on Eastern material, while the present paper, dealing entirely with my own collection, is based principally on Western forms. The combination of the two, therefore, brings to light so much new material and so many changes in nomenclature that the list in Aldrich's Catalog now seems antiquated. Aldrich listed fifty species and seven genera from north of Mexico as coming in this family. Of these, * Contribution from the Zoology Laboratory of the State College of Wash-ington. 305
BioStor
