LA REAL SOCIEDAD ESPANOLA DE HISTORIA NATURAL 41 



United States Department of Agriculture, Washington. 

 United States Geological Survey, Washington. 

 United States National Museum, Washington. 

 Universidad de Sassari (Italia). 

 Universitas Regia Fredericiana, Cristiania. 



Uuiversit6 de Toulouse. 

 Universite Royale d'Upsala. 



University of Colorado. 



Verein fiir naturwissenchaftliche Unterhaltung zu Hamburg (Alemauia). 



Wilson Bulletin, Oberliu, Ohio (E.-U.) 



Wisconsin Academy of Sciences Madison (E.-U.) 



Wisconsin Geological and Natural History Survey, Madison (E.-U.1 



Zeitschrift fiir wissenschaftliche Insektenbiologie, Husum. 



Zoologischer Anzeiger, Leipzig. 



Zoologist (The), London. 



