266 



INSECTS INJURIOUS TO THE GRAPE. 



moths escape in about ten or twelve days^ and soon deposit 

 eggs for the second brood, which mature later in the season. 



Some few of them produce 

 Pig. 276. mot lis before winter ap- 



proaches, but the greater por- 

 tion remain in the chrysalis 

 condition during the winter, 

 the moths escaping the fol- 

 lowing June. 



The moth is of a blue- 

 black color, with an orange- 

 yellow collar, and a notched 

 tuft at the extremity of the body ; the wings are very narrow, 

 and when expanded measure nearly an inch across. In Fig. 

 276, e represents the moth with the wings spread, d the same 

 with the wings closed. This insect is more common in the West 

 and South than in the East, and is sometimes very injurious. 

 They may be destroyed by syringing the vines with Paris- 

 green and water, as recommended for No. 140. There is a 

 small parasite, a black, four-winged fly, which attacks this 

 larva and destroys it. 



No. 143. — The Grape-vine Leaf-roller. 



Desmia maculalis Westwood. 



This insect, although most abundant in the Southern States, 

 IS very generally distributed, and will, no doubt, in its cater- 

 pillar form be familiar to most grape-growers. In Fig. 277, 

 1 represents the larva, natural size, 2 a magnified view of a 

 portion of the anterior part of its body, 3 the chrysalis, 4 the 

 male moth, 5 the female moth. 



The moth is a very pretty little creature, measuring, when 

 its wings are expanded, about nine- tenths of an inch or more 

 across. The wings are dark brown, nearly black, with a 

 coppery lustre, and lightly fringed with white ; the fore wings 

 have two white spots, nearly oval in form, the hind wings but 

 one white spot in the male, which is usually divided, forming 



