STATE AGftlCULTURAL SOCIETY. 397 



GRAPE. LEAVES. 



basal half of the abdomen, and are black with a net work of irregular coarse 

 elevated veins of a pale yellow color and an elevated dot of the same color in 

 the centre of most of the cells. Length 0.18. Several specimens have been 

 sent me from west of Arkansas by Mr. Robertson, and I also found it in 

 Illinois. 



116. ViXE Aphis, Aphis Vitisl Scopoli. (Homoptera. Aphidae.) 



A plant louse is reported as very destructive to the leaves and 

 young shoots of the grape at the south, which perhaps is the 

 same insect which infests the vine in the southern parts of Europe, 

 but as no description of it is given we are unable to judge whether 

 it possesses any resemblance to the foreign species. See Patent 

 Office Report, 1854, p. 79. 



2. Forming excrescences upon the leaves 



117. Grape LEAF LOUSE, Pemphigus Vitifoli<z, Yiic]\. (Homoptera. 

 Aphidae.) 



Early in June, a small globular gall the size of a pea, growing 

 upon the edges of the leaves, of a red or pale yellow color and 

 its surface somewhat uneven and woolly, with a cavity inside, in 

 which is a pale yellow louse of a flattened hemispherical form, 

 with short blackish feet. Length 0.04. See Transactions, 1854, 

 page 862. 



3. Worms eating the leaves. 



11§. Vinedresser, Chcerocamp a Pampinatrix, ^miih. and Abbot. (Lepi- 

 doptera. Sphingidae.) 



Eating the leaves and nipping oft' the fruit stalks, causing the 

 clusters when but lialf grown to drop to the ground; a thick 

 cylindrical worm, tapering anteriorly, its tliird and fourth rings 

 tliicker and slightly humped, a sliort horn at the end of its back, 

 forward of which is a row of five round rusty yellow or clay 

 colored spots, surrounded except on their fore side by pale yellow; 

 gruiuid color pale green freckled with pale yellow dots, when 

 mature chan<;ing to pale dusky olive witli a dusky strij)e on each 

 side of the I)ack, below which is a broiid bluish or pink white 

 stri]K3 sending live branches obliquely downward and forward 



