36 THE CANADIAN ENTOMOLOGIST. 



ON THE ORTHOPTEROUS FAUNA OF IOWA.* 



BY HERBERT OSBORN, AMES, IOWA. 



The Preliminary List of the Orthoptera of Iowa, published by Prof 

 C. E. Bessey in the Seventh Biennial Report of the Iowa Agricultural 

 College, is revised, a number of species being added and a number of 

 names taken from incorrectly determined specimens rectified. 



The revised list is represented thus in the following families : — 



Family Forficididce. 



Family Blattidce. 

 Family Phasmida. 

 Family Acrididce. 



One species. 



Four species. 



One species. 



Forty-one species. 



Family LocustidcB. 



Twenty-three species, probably twenty-four. 



Family Gryllidce. 

 Ten species. 



Total, eighty or eighty-one species. 



HOW THE FEMALE OF CACOECIA SEMIFERANA PRO- 

 TECTS HER EGG-CLUSTERS.* 



BY C. P. GILLETTE, FORT COLLINS, COLORADO. 



The Box Elder Leafroller, Cacoecia semiferana, was very abundant in 

 many places in Colorado last summer, and in July the moths were 

 swarming in the trees in the evening, presumably to deposit their eggs. 

 The eggs were found beneath a gluey mass, somewhat similar to that 

 used by the tent caterpillar in protecting her eggs, but it was largely 

 covered with what appeared to be scales from the moth, placed like the 

 shingles on a roof A careful examination of these shingled patches 

 under the microscope makes it seem certain that the eggs are first all 

 deposited, the glue is then added, and after this the abdomen is laid at 

 full length in the sticky substance until it hardens, when the abdomen is 

 removed, and the scales covering its under side are drawn and left 

 covering the eggs. 



*Abstracts of entomological papers read l:)efore the Iowa Academy of the 

 Sciences, Des Moines, Iowa, December 28 and 29, 1S91. 



