THE INSECTS OE NEW JERSEY. 
345 
LEPTINOTARSA Stal. 
Fig. 138.—The 10-lined potato beetle: a, egg patches; b, larvae in different stages 
of growth; c, pupa; d, beetle—all natural size; e, elytrum of 
beetle enlarged. 
L. 10-lineata Say. The common “potato-bug” or beetle; occurs through- 
out the State on potatoes, tomatoes, egg-plants and other “Solanacese” 
from early spring to late fall. Persistent treatment with arsenates 
is indicated and arsenate of lead is now the most usual material, at 
the rate of 10 pounds to 100 gallons of water. 
ZYGOGRAMMA Chevr. 
Z. suturalis Fab. Throughout the State IV-VIII, on ragweed, etc., by 
no means common and always local. The var. “casta” Rogers is re¬ 
ported from Staten Island (Lg). 
CALLIGRAPHA Er. 
C. lunata Fab. Greenwood Lake (Sf); Caldwell (Cr); Newark Dist., rare 
(Bf); on “Rosa” (Bt). 
C. si mi I is Rog. Throughout the State V-VIII, on ragweed, locally com¬ 
mon. 
C. elegans Oliv. Throughout the State, V-VIII, on “Bidens” and “Am- 
—-— ixrosla”’ local and hardly common. 
C. scalaris Lee. Greenwood Lake V, 20 (Lv); Caldwell (Cr); Ft. Lee 
(Bt); Newark Dist. (Bf); Gloucester VIII, 16 (W); feeds on elm; 
not common. 
C. rowena Knab. Chester VII, 4 (div); food plant unknown. 
/ C. rhoda Knab. Newark district (Bf); feeds only on hazel “Corylus” 
(Knab). 
