Aphid Food Plant Catalogue. 221 



ARTOSTAPHYLOS. Bearberry. 



Ar glauca. 



Phyllaphis coweni (Cockerell) (Cryptosiphum tahoense Davidson). 

 Essig, 1915b, p. 195. 

 A. manzanita. 



Phyllaphis coweni (Cockerell) (Cryptosiphum tahoense Davidson) 



Essig, 1915b, p. 195. 

 Rhopalosiphum nervatum Gillette, (arbuti Davidson) Essig, 1917a, 

 p. 330. 

 A. pumila Nutt. 



Cryptosiphum tahoense Davidson. Wilson, 1918 p. 194. 

 Phyllaphis coweni Gillette (Cryptosiphum tahoense Davidson). 

 Davidson, 1911b, p. 560; 1912, p. 404. 

 A. tomentosa Lindl. 



Cryptosiphum tahoense Davidson. Wilson, 1918, p. 194. 

 Phyllaphis coweni Gillette. (Cryptosiphum tahoense Davidson) 

 Davidson, 1911b, p. 560; 1912, p. 404. 

 A. Uva-ursi L. 



Nectarophora sp. Cowen. Cowen, 1895, p. 124. 



Phyllaphis (Pemphigus) coweni Cockerell. Gillette, 1909b, p. 41. 



CALLUNA. 



C. vulgaris. Heather. 



Aphis callunae Theobald. Theobald, 1915b. 



ERICA. 



E. gracilis. 



Aphis rumicis Linn. Wilson, 1918^ p. 238. 

 E. sp. 



Aphis ericae Walker.. Theobald, 1915b. 



RHODODENDRON. 



R. californicum Hook. 



Macrosiphum rhododendri Wilson. Wilson, 1918a, p. 230. 



VACCINIUM. 



V. varingiaefolium Miq. 



Toxoptera aurantii Boyer. (camelliae Kalt.) (aurantiae Koch) 

 (coffeae Nietner) (Ceylonia theaecola Buckton) (theobromae 

 Schout.) van der Goot, 1916b, p. 76, note p. 295. 



