225 



Additions to the List of Gall-Producing Insects 

 Common to Indiana. 



Mel T. Cook. 



Two years ago the writer presented a list of forty species of gall- 

 procliicing insects common to Indiana. One year ago an additional list of 

 eleven species was presented to the Academy. It was at first intended 

 to make as complete a list as possil:)le and then to give a more extensive 

 discussion of these very interesting insects and the abnormal growths 

 produced by them. However, a change of residence has made a change 

 of plans necessary. 



The following is a list of species which have come to my attention 

 within the past year and previous to my leaving Indiana. 



Hemiptera. 



52. Pfmphigus ragabundus Walsli. — Populas deltoides Marsh. 



53. Ilamamelistis spinosjts Shinier. Ilaniamelis Yirginiana L. 



DiPTERA. 



54. Cecidomyia clavula Beut. Cornus florida L, 



55. Cecidomyia cerasi-serutinui' O. S. Prunuti serotinae Ehrh. 



Hymenoptera. 



56. Amphibolips prunuf< Walsh. Quercus sp 



57. Ci/nips pi.vum Fitch. Quercus alba Ij. 



58. Dryophanta radicola Ashm. Quercus alba L. 



59. Neuroterus rileyi Bassett. Quercus prinus L. 



60. Rhodites radicum O. S. Rosa Carolina L. 



61. Rhodites dichlocertis HaTTis. Rosa Carolina Ij. 



62. Rhodites globidus Beut. Rosa Carolina L. 



Arachnida. 

 6.3. Acanis serotinae Beut. Prunus serotina Ehrh. 

 15— A. OF Science, '04. 



