Proceedings of 

 the United States 

 National Museum 



SMITHSONIAN INSTITUTION • WASHINGTON, D.C. 



Volume 112 1960 Number 3437 



REEXAMINATION OF SPECIES OF PROTURA 

 DESCRIBED BY H. E. EWING 



By F. Bonet AND S. L. Tuxen 1 



In 1948 F. Bonet went to Washington on a Guggenheim Memorial 

 Scholarship to study the Ewing collection of Protura. He redescribed 

 three of Ewing's species of Eosentomon in 1950 without, however, 

 giving figures. In 1956 S. L. Tuxen, supported by the Carlsberg 

 Foundation, Copenhagen, also went to Washington for the same 

 purpose, after having discussed matters with Bonet in Mexico. They 

 arranged to publish the redescriptions of Ewing collection jointly. 

 Tuxen took Bonet's notes to Washington and limited himself to a 

 study of the characters which Bonet had not taken into consideration. 

 All figures in the present paper were made by Tuxen when it is not 

 expressly stated "drawn by Bonet." The present paper was com- 

 pleted in 1957 and submitted for publication in November of that 

 year. 



The authors wish to express their sincerest thanks to the foundations 

 which have supported their studies, and extend special thanks to 

 Grace Glance without whose kind help they could not have made the 

 studies. 



'The former is associated with Laboratorio de Zoologia y Paleontologia, Escuela Nacional de Ciencias 

 Biologicas, I.P.N., Mexico, D.F.; the latter is with Zoologisk Museum, Copenhagen, Denmark. 



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