THE INSECTS OF NEW JERSEY. 353 



as on cucurbs and many other garden crops. Make little round holes 

 in the leaves and are usually controlled by using bordeaux mixture 

 and Paris green. 



E. parvula Fab. The "tobacco flea-beetle"; rare in New Jersey; found 

 Westville I, 28, in hibernating quarters (W). 



MANTURA Steph. 



M. floridana Cr. Arlington, under stones in early spring (Bf) ; through- 

 out South Jersey V-VII; hibernates as an adult. 



CH/ETOCNEMA Steph. 



C. subcylindrica Lee. Newark, under stones III, 14 (Bf) ; Westville (Li); 



Camden I, Collingswood IV, Merchantville V, 8 (Brn) ; rare. 

 C. denticulata 111. Throughout the State V-VII; on corn and millet (Ch). 

 C. minuta Mels. Newark (Bf). 

 C. alutacea Cr. Anglesea VI (Coll). 

 C. obesula Lee. Newark (Bf ) ; a South Atlantic form. 

 C. parcepunctata Cr. Irvington III (Bf ) ; Staten Island (Lg). 



C. pulicaria Mels. Throughout the State III, V, VII, locally common; 

 sometimes injurious to corn and millet (Ch). 



C. confinis Cr. Throughout the State all winter until VI, 25, again VIII 

 until frost. The "sweet potato flea beetle," found on "Convolvulacea" 

 in general. In South Jersey often injures sweet potato plants soon 

 after they are set out; larva feeds on roots of bind-weeds. Plants 

 may be protected by dipping tops before they are set out in arsenate 

 of lead 1 pound in 10 gallons of water. 

 "C. pinguis" Lee. is omitted as an error of record. 



SYSTENA Clark. 



S. hudsonias Forst. Throughout the State VII, VIII; common on many 



plants. 

 S. frontal is Fab. With the preceding VI, VII; feeds on "Polygonum" 



and "Chenopodium," and sometimes on cultivated crops (Ch), e. g., 



cranberries (Sm). 

 S. elongata Fab. Orange Mts., rare (Bf). 



S. taeniata Say. Throughout the State VI, VII, sometimes abundant on 

 carrots, parsley, etc. The var "blanda" Mels. is as common as the 

 type, on ragweed. Arsenites are indicated whenever they can be 

 safely employed; otherwise a strong tobacco decoction will answer 

 almost as well. 



S. marginalis 111. Ft. Lee (Bt); Orange Mts. (Bf ) ; Spring Lake (Ch); 

 Clementon VIII, 6 (W) ; sometimes abundant on oak (Hn). 







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