178 MANUAL, OF VEGETABLE-GARDEN INSECTS 



load as a kind of sunshade. The larva passes through five 

 stages and reaches maturity in twelve to twenty days. Pupa- 

 tion takes place on the leaf, to which the pupa is attached by 

 the hind end of the body and in two to ten days transformation 

 to the beetle occurs. In Louisiana there are four or five 

 generations annually. Both the larvae and adults eat out round 

 holes in the leaves and often seriously injure young eggplants. 

 The eggplant tortoise beetle rarely becomes sufficiently 

 abundant to require remedial treatment but may be readily 

 controlled by spraying with arsenate of lead (paste), 2 or 3 

 pounds in 50 gallons of water. 



Reference 

 U. S. Dept. Agr. Bull. 422. 1916. 



The Eggplant Lace-Bug 

 Gargaphia solani Heidemann 



Throughout the southern states from Virginia, Missouri 

 and Oklahoma south w^ard, the eggplant is sometimes injured 

 by a grayish or light brownish lace-bug. This insect is a 

 native of America and fed originally on horse-nettle. It some- 

 times occurs in great abundance on potatoes. 



The adult lace-bug is about ^ inch in length, flat, and under 

 a lens presents a striking appearance. The prothorax is de- 

 veloped into a hood that extends backward between the wings 

 at the base, and its sides are expanded angularly. The front 

 wings are broad, rounded at the tip, blackish at the base and 

 apex, with a pale band across the middle and with the, veins 

 arranged so as to form a beautiful reticulated network, resem- 

 bling lace. The expanded margin of the prothorax is similarly 

 reticulated. 



The female deposits her eggs on the imderside of the leaves 

 in circular clusters of 100 to nearly 200. The eggs are placed . 



