These seventeen-year cicadas, mounted on pins with the shed skin on the same pin 

 below them, are being prepared for the Museum's insect collection (see page 86). 



Rupert L. Wenzel, Curator of Insects, resumed work on a mono- 

 graph of the genus Margarinotus, a group of about a hundred species 

 of histerid beetles that occurs in Europe, Asia, and North America. 

 Associate Curator Henry S. Dybas continued his studies of the 

 taxonomy of the minute fungus-spore beetles of the family Ptiliidae 

 and prepared a short paper describing a new genus of these beetles 

 from Oregon. In co-operation with D. D wight Davis, Curator of 

 Vertebrate Anatomy, he carried out field studies on the periodical 

 cicada, whose local emergence attracted so much public attention 

 in June and July of this year. Dybas made a one-week trip to the 

 Laurentian Mountains with a group of entomologists from the 

 Tenth International Congress of Entomology that was held in 

 Montreal in August. He collected Berlese samples of the Canadian 

 Life Zone and brought them back to the Museum for processing. 

 Miss Lillian A. Ross, Associate, continued her study of spiders. 

 Dr. Fritz Haas, Curator of Lower Invertebrates, went to Bimini 

 in the Bahamas for three weeks to continue his studies of the fauna 

 of coral reefs and coral islands. His research in the Museum was 

 on mollusks of Dutch Guiana and the Lesser Antilles. 



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