October, '09] journal op economic entomology 351 



PLANT LOUSE NOTES, FAMILY APHIDIDAE; PLATE 12 



By C. P. Gillette 



On June 21, 1909, the writer left Fort Collins for a trip east, and 

 made short stops at Chicago, Illinois ; Lansing, Portland and Detroit, 

 Michigan ; Rochester, Geneva, Albany and New York City, New York ; 

 Palisades, near Fort Lee, New Jersey; and Washington and George- 

 town, D. C, for the purpose of collecting and taking notes upon 

 species of Aphidida^ and seeing as many types as possible. In the 

 same month Mr. L. C. Bragg started upon a vacation trip east, dur- 

 ing which he made collections and notes on Aphididte at Lawrence, 

 Kansas; Kansas City, Missouri; Union City, Indiana; Springfield, 

 Amherst and Wood's Hole, Massachusetts; and then, between August 

 18th and 27th last, the writer collected aphids at Portland, Hood 

 River, Oregon City, Dundee, Corvallis and Salem, Oregon; and Se- 

 attle, Washington. The notes cover more than one hundred species 

 and the object of this paper is to bring the more important of these 

 notes together, with brief comments upon the occurrence of the same 

 species so far as we have taken them in Colorado. 



To avoid repetition. I will give here, once for all, the dates at which 

 captures were made at the different points visited. 



The dates of Mr. Bragg 's collections were: Lawrence, June 5 to 

 10 ; Kansas City, June 11 and 12 ; Union City, Ind., June 13 ; Spring- 

 field, June 14 to 16 ; Amherst, June 16 ; Webster, June 17 to 28 ; 

 Wood's Hole, June 28 to July 5. 



My dates were : Chicago, June 23 ; Lansing, June 24 ; Portland, 

 Mich., June 25 and 26 ; Detroit, June 27 and 28 ; Rochester, June 29 ; 

 Geneva, June 29 and 30; Albany, July 1; Central Park, N. Y., July 

 2 ; Palisades, near Fort Lee, July 2 ; Washington and Georgetown, 

 July 3, 4 and 5 ; Portland, Ore., August 18 to 20 ; Hood River, August 

 21; Oregon City. August 22; Dundee, August 23; Corvallis, August 

 23 and 24 ; Salem, August 24 ; Seattle. August 27. 



I was specially helped in this work by Mr. J. J. Davis in Chicago, 

 Dr. E. P. Felt at Albany, Doctor Beutenmuller at Palisades and Mr. 

 H. Wilson at Washington and Georgetown. 



FITCHES TYPES 



While at Albany Doctor Felt kindly unsealed the case of Fitch's 

 types for my inspection. I had wondered how it happened that Fitch 

 always had males of his plant lice to describe. An examination of 

 his types indicates that, to Fitch, all winged lice were males, as will 

 appear from the following notes : 



