2l6 



ENTOMOLOGICAL NEWS. 



[September, 



a trace in the embryo, I would claim that the typical three pairs 

 found in Peripatus are always present. 



In the various groups treated they appear under the following 

 names: 



As to the other groups. The Pauropoda should be placed by 

 the side of Diplopoda. The differences between them would 

 hardly be of ordinal value in Hexapoda. The Pantopoda do not 

 differ essentially from Arachnida and properly belong among the 

 mites. Tartigrades are needlessly separated from the Acarina. 

 The Linguatuliiia may, as some suggest, not belong to the Ar- 

 thropoda. 



The ascension of any group of animals to a new element is 

 productive of great variation, many disappear. Three times 

 this has occurred in the history of Arthropoda; once when an 

 Arthropod obtained wings, and the various NeuropterOid groups 

 most numerous in ancient times bear witness; again when a Dip- 

 lopodous form took to the water, and of the many Trilobites and 

 Eurypteroid forms only Limulus remains; and again when a form 

 similar to Eurypterus came on land and left the isolated groups 

 of the lower Arachnida. 



AN OUTBREAK OF GRASSHOPPERS. 



By F. S. Daggett, Duluth, Minn. 



In the October, 1893, number of the News I reported an out- 

 break of grasshoppers at Duluth, Minn. , and their effect indi- 

 rectly upon Lepidoptera. This year is a repetition of the scourge, 

 intensified by drought, and this month (July) forest fires have 

 added a blue veil of smoke hiding the landscape from view. 

 Taking it all around it has been the most unsuccessful year, from 

 a collecting standpoint, I ever experienced. This condition of 



