BIOLOGICAL PAPERS. 237 



Aphis sp. On apple. June, 

 sp. On cherry. June, 

 sp. On apple. June, 

 sp. On weeds in orchard. June, 

 sp. On Prunus americana. June. 

 Phloeothrips caryse Fitch. In timber. June. 

 Aleyrodes sp. On weeds in slough. May. 



sp. On bur-oak in orchard. July. 

 Hsematopinus urius Nitzsch. On domestic hog. 



piliferus Burm. On young dog. February. 

 Antonina boutelouie Popenoe. On Bouteloua hirsuta; Manhattan, May. 



purpurea Sign. On Milium and Agropyrum; Manhattan, April 25. 

 nortoni Parrott & Ckll. On Milium racemosa; Manhattan, April 2. 

 graminis Pope. On Eragrostis trichoides; St. George, May .SO. On 

 Bulbilis dactyloides; Manhattan. On Eragrostis trichoides, E. 

 pectinacea, Paspalum ciliatifolium; Hutchinson. On E. trichoides; 

 Nickerson, August. 

 Gymnococcus nativus Pope. On Sporobolus cryptandrus; Nickerson, August. 

 Aspidiotus marlatti Parrott. On Andropogon furcatus, A. scoparius, Panicum 



virgatum, and Chrysopogon arenaceus. 

 Eriococcus kemptoni Pope. On Andropogon scoparius; Riley county, June 1. 



On Andropogon scoparius; Dundee, August. 

 Pseudolecanium obscurum Pope. On Andropogon scoparius; Lost Springs, Par- 

 sons, and Fredonia. On Andropogon scoparius and Sporo- 

 bolus longifolius; Green Mound, October 28. 

 californicum Ehrhorn. On Andropogon furcatus; Manhattan 

 and St. George. 



