GKAPE INSECTS. 127 



GRAPE, 



( Vitis spp. Family Vitacege.) 



Fruit-bearing vines valued both for the fruit itself and for the wines derived there- 

 from. 



A. BETTER KNOWN GRAPE INSECTS LIKELY TO BE IMPORTED. 



:^ Eriophyes vltls Landois. 

 (Grape Blister Mite. Eriophyidse; Acarina.) 



Hosts: Vitis vinifera, V. vesuviana, V. carinthiaca, V. arizonica, V. aestivalis. 



Injury: Causes much damage to the vine. 



Description and biology: Four-legged blister mite which attacks the leaves, buds, 

 flowers, and berries of the grape. 



Distribution: Europe, Armenia, North America. 

 SoRAUER, P. Handbuch der Pflanzenkrankheiten, 3d ed., 1913, vol. 3, pp. 119, 



120, figs. 94, 95. 



Anomala vitis Fabricius. 



(Grape Anomala. Scarabseidee ; Coleoptera.) 

 Host: Grape. 

 Injury: May be serious. 



Description and biology: Adult, length. 12-17 ram..; green, violet or azure; body oval; 

 head, prothorax, and scutellum punctate; elytra convex with distinct longitudinal 

 striae. Occurs in June and July; crepuscular; feeds on foliage of the vine. Pupates 

 in soil in May; stage requires about a month. Larva feeds on roots of grass and the 

 vine. Feeds about a year and a half. Egg oblong, hatches in about 15 to 20 days. 



Distribution: Middle and eastern Europe. 

 SiLVESTRi, F. Dispense di Entomologia Agraria, 1911, p. 310. 



Sinoxylon perforans Schrk.; Sinoxylon sexdentatum Olivier. 

 (Grape-vine Flat-headed Borers. Bostrychidse; Coleoptera.) 



Species: S. perforans; Tirol, Italy, grape; Europe, oak, elm, horse chestnut. iS. 

 sexdentatum; Spain, grape; South France, Quercus sessiliflora. 



Injury: Bore in the stems, branches, and trunk; sometimes causing very serious 

 injiu-y. 

 SoRAUER, P. Handbuch der Pflanzenkrankheiten, 3d ed., 1913, vol. 3, p. 489. 



Vesperus spp. 



(Grape Borers. Cerambycidse; Coleoptera.) 



Species: V. xatarti Dufour; France; grape. V. luridus Rossi; Italy; grape. V. 

 strepens Fabricius; France; grape, rose, forest trees. V. mauretanicus Dry; Algeria, 

 Spain; grape, olive. 



Injury: Bore in stems. 

 SoRAUER, P. Handbuch der Pflanzenkrankheiten, 3d ed., 1913, vol. 3, p. 498. 



^ Bromius obscunis Linnaeus. 

 (Grape Root Worm. Chrysomelidse; Coleoptera.) 



Hosts: Grape, Epilobium, etc. 



Injury: Sometimes serious. Attacks both the roots and the growing parts of the 

 vine. 



Description and biology: The species has two varieties, obscurus, which is black, and 

 vitis Fabricius, which is brown. The eggs are laid in crevices beneath the inner 



