THE LEAF BEETLES. 



1201 



2221 (6900). HALTICA BIMARGINATA Say, Journ. Phil. Ac-id. Nat. Sci., IV, 

 1824, 85; ibid. II, 226. 



Oblong, subparallel. Above dark blue, moderately shilling; under sur- 

 face and legs blue-black, antenna? piceous. Thorax one-half wider than long, 

 margins very narrow, the ante-basal depression deep, reaching the sides 

 and joining the marginal depression ; surface distinctly alutaceous, sparsely 

 punctate. Elytra wider at base than thorax, with a prominent fold extend- 

 ing from umboue to near apex; surface finely, rather sparsely and indis- 

 tinctly punctate. Length 5-6 mm. 



Northern half of State, frequent; not taken south of Vigo 

 County. May 20-August 26. Occurs on knotweed or smartweed 

 in moist localities. 



*2222 (6961). HALTICA CHALYBEA 111., Mag. fur Insect., VI, 1807, 115. 



Oval, rather robust. Metallic blue, shining, rarely cu- 

 preous or greenish ; under surface and legs blue-black ; an- 

 tennae piceous, the basal half with metallic lustre. Thorax 

 a little more than half wider than long, margins narrow, 

 slightly thickened in front; disk convex, the ante-basal im- 

 pressed line rather deep, extending from margin to margin ; 

 surface with minute scattered punctures. Elytra scarcely 

 wider at base than thorax, umbone rather prominent, smooth ; 

 surface sparsely punctate, nearly smooth near apex. Length 4-5 mm. (Fig. 529.) 



Throughout the State; common. March 1-i-December 10. Hi- 

 bernates beneath bark and rubbish ; mating April 12. Occurs on 

 the wild grape and poison ivy and known as the "grape flea- 

 beetle," often doing considerable damage to the cultivated vine. 

 Readily controlled by spraying with arsenites when the larvae are 

 discovered. 



Fig. 529. 

 (After LeBaron.) 



2223 (6963). HALTICA IGNITA 111., Mag. fur 





Fig. 530. a, Beetle; b, egg mass on bit of leaf; c, newly hatched 

 larva; d, first abdominal segment of same; e, larva; /, pupa; all 

 8. (After Chittenden in Bull. 23, N. Ser., U. S. Div. Ent.J 



apex. Length 3-4 mm. (Fig. 530.) 



Insect., VI, 1807, 117. 



Oval, slightly oblong, sub- 

 depressed. Color exceedingly 

 variable from a coppery gold- 

 en lustre, through greenish to 

 dark blue; under surface and 

 legs colored as above. Thorax 

 one-half wider than long, very 

 little narrowed in front, sides 

 feebly curved, ante-basal im- 

 pression deep, extending from 

 margin to margin ; surface mi- 

 nutely and sparsely punctate. 

 Elytra distinctly wider at base 

 than thorax, umbone rather 

 prominent, limited within by 

 a depression : surface distinct- 

 ly and sparsely punctate near 

 base, gradually smoother to 



