EXPERIMENT STATION BULLETINS. 



257 



The writer has never had an opportunity to personally test a spray on these gougers, 

 but it would seem that benefits ought to be derived from several good sprayings with 

 Paris green and lime used at the rate of one pound of Paris green and one pound of 



lime to 175 gallons of water. 



See page 249. 



THE OLD-FASHIONED POTATO-BEETLE. 

 ( Epicauta vittata Fabr. ) 



s* 



Fig. 21. — Old-fashioned Potato-beetle. Epicauta vittata enlarged 4% times. Original. 



Many of us will remember that before the advent of the common Colorado potato- 

 beetle, there was a long, yellow and black beetle a little more than half an inch long 

 that used to work on the potatoes. Since the coming of the Colorado beetle, the common 

 one now, this old-fashioned fellow has retired from business, at least his presence has 

 seldom been noticed in Michigan. The past year has witnessed a recurrence of these 

 insects in numbers in parts of the State. They live on potatoes, tomatoes, sugar beets, 

 and most garden truck. The beetle is a little over half an inch long with a reddish- 

 yellow head, having two black spots on the back. The pro-thorax is black with three 

 yellow longitudinal stripes or remnants of stripes, and each wing-cover is yellow with 

 two black stripes running the entire length. The legs and antennae are black and 

 pubescent. See Fig. 21. It is also known as the striped blister-beetle. 



The beetle in its immature stages feeds on grasshopper eggs as does the margined 

 blister-beetle discussed in Bulletin 180, p. 132, of this office, and for this reason it is 

 33 



