164 IOWA ACADEMY OF SCIENCES. 



G. glandulosa, Ell & Kell. Common on young plants of 

 Ailanthus glandulosus. No. 21. 



G. gossypina, Cke. Very abundant and destructive to the 

 leaves, stems and fruit of Gossypium herhaceum especially in 

 ^fields where the plants were poorly nourished. No. 6. 



G. granuliformis, Ell. & Hal. Common on leaves of Viola 

 cucullata. No. 38. 



G. hibisci, P. & E. Abundant on languid leaves of Hibiscus 

 esculentus. This seems to be closely allied to G. gossypina. 

 No. 73. 



G. hydrangeas, E. & E. Common on leaves of cultivated 

 Hydrangea. No. 71. 



G. Hydrocotyles, E. & E. Common and destructive to the 

 foliage of Hydrocotyle canbyi and H. americana. No. 41. 



G. Hydropij^eris, (Thuen.) Speg. Abundant and destructive 

 to leaves of Polygonum pennsylvanicum. No. 87. 



G. lliscis, Ell. Common on foliage of Ilex glabra. No. 125. 



G. Jatrophce, Atk. Abundant and destructive to foliage of 

 Cnidoscolus stimulosus. No. 51. 



G. Liquidambaris, C. & E. Abundant and destructive to the 

 foliage of Liquidambar styraciflua. No. 23. 



G. lucosticta, E. & E. Common on leaves of Melia azedarach. 

 No. 7. 



G. mali, E. & E. Very abundant and destructive to foliage 

 of Pyrus arbutifolia Var. erythrocarpa. No. 55. 



G. moricola, Gke. Abundant on leaves of Morus rubra. No. 

 110. 



G. occidentalis, Cke. Very destructive to foliage of Gassia 

 OGcidentalis. No. 86. 



G. olivaceaCB. & K.), Ell. Locally abundant and destructive 

 io leaves of Gleditschia triacanthos. No. 123. 



G. passaloraides, Winter. Abundant on leaves of Amorpha 

 fruticosa. No. 65. 



G. personata (B. & C), Ell. Seriously injuring the foliage 

 and stems of Arachis hypogea. No. 8. 



G. plantaginis, Sacc. Common on leaves of Plantago lanceo- 

 lata. No. 44. 



G. populina, EU. & E. V. Completely defoliates young trees 

 of Populus dilatata. No. 2. 



G. prenanthis, Ell. & Kell. Common on Prenanthes sp. No .50. 



G. prunicola, Ell. & E. V. Common on leaves of Pninus 

 americana. No. 79. 



