194 INSECTS INFESTING THE OH APE. 



cnWTFAl CXI. 

 The Imported Grape Flea-beetle. (Cal.) 



(^Ado.ris rllis. — Linnu'us.) 



Order, Ccm.eoptkha ; Family, ('iirvsomki.id.i-:. 



[A small (lark-lirowii beetle, feedinu' uixni the leaves ol' the 

 grapevine.] 



This speeies was reported in 1882, from at least six of the 

 vine-growing districts, as damaging the foliage of grapevines, 

 and is rejjorted this Sjjring (1883) to be destroying tlie vines 

 infested. This is an enemy of the grapevine, which must be 

 eradicated. Their mode of attack on the vines is similar to 

 that of the steel-blue or grape fiea-beetle {Ilaltica chalyhea), 

 and they frequently damage young vines to such an extent 

 that the)^ die. One vineyard in this vicinity (Sacramento) has 

 been damaged seriously this Spring. The perfect insect (Fig. 

 179, Plate 3,) is black, with a sub-metallic luster of a greenish 

 hue, but after emerging from the ])upa state is of a reddish- 

 brown color. It is ovate and convex, and measures from two 

 lines to two and one quarter lines in length ; antenna^, eleven 

 jointed. This insect, although known to be widely destructive 

 on the Pacific Coast and in the mountainous regions of the 

 Atlantic States, had not been reported as being very injurious 

 in this State until 1882. In Europe it is well known as a dan- 

 gerous enemy to the grapevines, especially in France, Avhere it 

 is called C. gribourier, and Avhere much has been written in 

 regard to its destructiv^e habits. 



Remedies. — Nos. 19, 20, 21 and 102. On young non-bear 

 ing grapevines Xos. 103 and 10 may be used. 



