Proceedings of the United States National Museum . Miocene Gastropods from Trinidad For explanation of plate see page 65 U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 66, ART. 22 PL. 10. Miocene Gastropods from Trinidad For explanation of plate see page 65 A EEVISION OF THE NORTH AMERICAN SPECIES OFTHE GENUS •ARGYRA MACQUART, TWO-WINGEDFLIES OF THE FAMILY DOLICHOPODIDAE By M. C. Vax Duzee Of Buffalo, Neto York The present paper is a review of the North American species ofthe genus Argyra and contains descriptions of 26 new species aswell as a more or less complete redescriptions of the species pre-v
Proceedings of the United States National Museum . Miocene Gastropods from Trinidad For explanation of plate see page 65 U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 66, ART. 22 PL. 10. Miocene Gastropods from Trinidad For explanation of plate see page 65 A EEVISION OF THE NORTH AMERICAN SPECIES OFTHE GENUS •ARGYRA MACQUART, TWO-WINGEDFLIES OF THE FAMILY DOLICHOPODIDAE By M. C. Vax Duzee Of Buffalo, Neto York The present paper is a review of the North American species ofthe genus Argyra and contains descriptions of 26 new species aswell as a more or less complete redescriptions of the species pre-viously described. The association of the females with the males is in some casessubject to doubt; but with the large amount of material in myhands I have felt little uncertainty in placing them. Measurements of the tarsal joints are given for all the species;these were made with an eyepiece micrometer, and each unit is verynearly one-fiftieth of a millimeter. I am greatly indebted to Dr. J. M. Aldrich for the loan of hismaterial (since donated to the National Museum) ; to C. W. Johnson,who sent me his material and that of the Boston Society of NaturalHistory, and started
Size: 1283px × 1947px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
