December, '11] SANDERSON: entomological investigations 539 



30. (S) Root maggots; experiments in methods of control. 



C. Gordon Hewitt, Div. Entomologj-, Can. Dept. Agr., Ottawa, Can. 



31. (S) Cabbage maggot; studies of life history, habits, methods of control, physio- 

 logical reactions of puparia to heat and dessication, and methods of protecting seed 

 beds. 



W. J. Schoene, X. Y. Agr. Exp. Sta., Geneva, X. Y. 



32. (S) Apple maggot; life history and control measures. 



C. Gordon Hewitt, Div. Entomology, Can. Dept. Agr., Ottawa, Can. 



33. (A) Apple maggot {Rhagolctis pomonella) . A thorough study of the life history, 

 and measures of control. 



W. C. O'Kane, X. H. Agr. Exp. Sta., Durham, X. H. 



Hemiptera 



34. (S) Green soldier-bug {Nezara hilaris); Hie history study and means of control 

 in peach orchards. 



Assistant of H. A. Gossard, Ohio Agr. Exp. Sta., Woo.ster, Oliio. 



35. (S) False tarni.shed bug (Lygus inviius Say). The life history, habits, and 

 methods of control of this pe.st of the pear. 



H. E. Hodgkiss, X. Y. Agr. Exp. Sta., Geneva, X. Y. 



36. (S) Chinch-bug; life history and means of control. 



W. P. FHnt, Springfield, 111., and L. M. Smith, Carbondale, 111. 

 Field laboratories of the 111. State Entomologist. 



37. (H) Chinch-bug investigations to discover practical means of control, based on 

 careful Ufe history studies. 



T. J. Headlee, J. M. McColloch, and F. B. MiUiken, Kas. Agr. Exp. Sta., Man- 

 hattan, Kas. 



38. (S) Chinch-bug; field ob-servations on abundance and measures of control. 

 H. A. Gossard and assistances, Ohio Agr. E.xp. Sta., Wooster, Ohio. 



39. (S) Grape leaf-hopper; life history, habits and means of control. 

 F. Z. Hartzell, X. Y. Agr. Exp. Sta., Geneva, X. Y. 



40. Membracidse; studies in development, morphology and embryology. 

 Hazel Branch, Univ. of Kas., Lawrence, Kas. 



41. (A) PsyllidcB. Ecological studies and descriptions of Psyllidceoi'Sev: England. 

 Edith M. Patch, Me. Agr. Exp. Sta., Orono, Me. 



42. (S) Pear psylla. To determine more efficient methods of control; attention is 

 being given to the effects of the various elements of the en\aronment on larval activ- 

 ities. 



H. E. Hodgkiss and P. J. Parrott, X. Y. Agr. Exp. Sta., Geneva, X. Y. 



43. (A) Aphididce. Ecological studies of the Aphididoe of Maine. 

 Edith M. Patch, Me. Agr. Exp. Sta., Orono, Me. 



44. (A & H) AphididcB. Investigations of the Aphididce of Colorado; studies of 

 life histories, food plants and means of control. 



C. P. Gillette and assistants, Colo. Agr. Exp. Sta., Fort Collins, Colo. 



45. (H) The cotton or melon aphis {Aphis gosiiypii);\iie history, habits and means 

 of control. 



Wilmon Xewell and assistants, Tex. Agr. Exp. Sta., College Station, Tex. 



46. (A) Melon aphis (Aphis gossypii) parasites. Studies of the parasites of the 

 melon aphis, their relative importance, other hosts, and possibility of artificially 

 increasing these parasites. 



L. Bruner and M. H. Swenk, Xebr. Exp. Sta., Lincoln, Xebr. 



47. (S) Corn root-aphis; life histor\', habits and means of control. 



W. P. Flint, field laboratory of 111. State Entomologist, Springfield, 111. 



