THE CANADIAN ENTOMOLOGIST. 123 



Joints on peduncles as long as the joints, subcyli'ndrical with rounded 

 ends, about one-half longer than broad, rather thickly verticillate ; the 

 longest hairs nearly three times as long as the joints, and projected at 

 nearly right angles to them ; the shorter hairs about equal in length to the 

 joints, some of which curve upward and have their tips nearly in the plane 

 of the succeeding joint ; joints regularly and gradually diminishing in size 

 to the terminal one, which is about but one-half the size of the penultimate 

 one, and of an ovate form. 



The wings are clothed with numerous short, curved, blackish hairs, 

 which give them a dusky appearance ; cilise paler, long. The abdomen is 

 fuscous, marked on each segment dorsally with black hairs forming a seg- 

 ment of a circle having the curve in front. The thorax is black above, 

 clothed with rather long hairs. 



The insect is in all probability quite generally distributed throughout 

 the State of New York, and will be found in adjoining States. On the 

 ist of July, examples of the larvae were obtained from clover heads 

 gathered by me on Mount Equinox, Vermont, at an elevation of 2,500 

 feet above tide. On July 5th, although a late period for the larvse, mature 

 specimens were taken from clover growing within the city of Albany, from 

 the sidewalk of Western Avenue. The only example of the fly which has 

 up to the present, so far as my knowledge extends, been taken at large, 

 was captured on the Hudson River, in the vicinity of Castleton, on the 

 1 6th of the present month (July), by Mr. Dempster A. Lansingh, of 

 Albany. The keen eye that could detect so minute an object on the 

 crowded deck of an excursion boat, deserves to be trained for use in 

 entomological science. 



From information kindly communicated to me by Prof. Win. H. 

 Brewer, of Yale College, New Haven, Conn., it is very probable that the 

 existence of this clover pest was known at least thirty years ago. He 

 writes as follows : 



" My father, Henry Brewer, of Enfield Center, Tompkins Co., N. Y., 

 was an enthusiastic grower of clover and cloVer-seed as far back as I can 

 remember. Many years ago — how long, I cannot definitely say, but cer- 

 tainly before 1848, it was known to us that an insect attacked the. clover, 

 which hatched out a fly. ( )ur belief then was, that the larva existed 

 within the seed. On two occasions I hatched out the flies and sent them 

 by mail to Albany, to the Entomologist there— once before 184S, and 

 once later, somewhere between 1851 and 1855. The fly was very small 



