264 THE CANADIAN ENTOMOLOGIST. 



behind the middle. The colours, as well as the punctures and the degree 

 of pubescence, are similar in the two species." 



Of these species the first named, the hirundinis, has been collected in 

 large numbers by Prof. Gillette and myself at Ames, from the nests of 

 barn-swallows, being first reported to us by workmen who were placing 

 eavestroughs on the barn. 



A short note on the species was published by Prof. Gillette in 

 "Entomological News," under the name of pipistrellce, with Mr. W. H. 

 Ashmead cited as authority for the determination. The use of this name 

 came from some verbal misimderstanding, we believe, and there is no 

 question as to the specimens belonging to the form described by Jenyns 

 as hirundinis. The specimens when compared with lectidarins show very 

 distinct differences, and these differences appear to be constant, as well as 

 the habit of the insect, and it seems to me that the separation of the 

 species is well founded, especially if the other forms are as distinct as 

 this, and we would gather as much from the descriptions which have been 

 quoted. 



I should very much like to secure specimens or information as to the 

 occurrence of the other species in this country, and the principal object 

 of this note is to engage the attention of some one who may have the 

 opportunity to examine the nests of bats and pigeons, where possibly they 

 may be found. 



The species found in the swallows' nests appears to remain entirely in 

 the nests or upon the barn adjacent to them, some being observed on the 

 sides of the barn nearly down to the ground. They were very abundant 

 after the swallows had left, and specimens kept in a bottle corked with a 

 rubber stopper were alive and active the following summer, so it would 

 seem an easy matter for them to remain in the nests till the return of the 

 swallows in the spring. The nests contained immense numbers of empty 

 egg shells, showing that the eggs were deposited directly in the nests, and 

 where the young bugs when hatching would at once get access to the birds. 



In reply to a question by Mr. Stiles, Mr. Osborn stated that his 

 observations were based upon the examination of several hundred speci- 

 mens. He had examined what few bats he had had in the laboratory, but 

 had had no opportunity to examine them in caves. 



Mr. Lintner stated that housekeepers were generally of opinion that 

 swallows brought Acanthia into houses. 



Mr. Hubbard staled a case coming under his observation where a bat 



