The Rose Flea-Beetle 



(Hiillicd probata Kail) 



G. F. MOZXKTTE, 



ASSISIANI ICNTOMCM-OGIST, OREGON AGRICUL IL RAl. COLLEGE, 



CORVALLIS, OREGON 



INTRODUCTION 



I'roin a careful perusal of the literature it is apparent that scarcely 

 anything but the original description of Hallica probata FaU appears 

 in print. As this species has at various times been reported on sev- 

 eral of our cultivated plants, and as there is some possibility of its 

 becoming destructive to our culti\ ated roses, observations have been 

 made from time to time and this paper brings together, so far as 

 possible, the recorded facts concerning the species. 



HISTORY AND DISTRIBUTION OF THE SPECIES 

 The species was first described by Dr. H. C. Pall in 1910.* Mr. 

 Arthur Gibsont mentions it as attacking leaves of strawberry plants 

 at Nelson, British Columbia. The species is referred to as Haltica 

 rvirta Lee, but after a comparison with specimens in the writer's 

 collection and later in Dr. Fall's collection at Pasadena, California, 

 I am led to believe that the species reported by Mr. Gibson as 

 fiicta is not I'vicla but prohaia. It has been reported from Spokane, 

 Washington, on strawberries, and at various times has been reported 

 feeding on cultivated crops in Oregon. 



The species is distributed along the Pacific Coast from British 

 Columbia to California. It has been reported from Nelson in 

 British Columbia; Everett and Spokane in Washington; from Cor- 

 vallis, Pamelia Lake, Mary's Peak, the Three Sisters, and Josephine 

 County in Oregon; and from Santa Rosa, Belmont, Siskiyou, and 

 Trinity Counties in California. 



SEASONAL LIFE-HISTORY AND HABITS OF THE 



SPECIES 



With the approach of warm weather in the spring, when the 

 buds of the wild rose are showing theii- green, the little bron/.e 



•Transactions of ilie .American Enlomological Society of .America, \'oK 36, pp. 

 tCanadian Entomological Circular N'o. 2. 

 152-159. 



