60 



seven weeks ; then become very voracious and "begin to 

 run," devouring everything in their progress — Indian corn, 

 garden vegetables, etc. Soon change to chrysahds and win- 

 ter thus. 



Kemedies : — Cut grass early in July and burn meadows in 

 M;-rch. 



1860. Morris, John G. — Spilosoma acria. Synopsis Lep. N. A., 



Appendix, p. 342. Description of moth and larva. 



1861. Clemens, B. — Spilosoma acrea. Proc. Acad. Nat. Sci. Phila. 



1860, p. 531. Description of moth. 



186'2. Harris, T. W. — Arctia acma. Insects injurious to vegeta- 

 tion, p. 351, fig. 169. Destructible to grasses in salt marshes 

 about Boston, July and August. Feed in corn fields and 

 gardens. Change to chrysalids in August and emerge June 

 following. Middle and Southern States two broods annu- 

 ally. Destructive at irregular periods. Description of moth 

 and larva. Mow marshes early and burn stubble following 

 March. 



1864. Packard, A. S., Jr. — Spilosoma acnea. Proc. Ent. Soc. 

 Phila., III., 125. (Synopsis of the Bombycida; of the United 

 States.) Synonymy and bibliography, 



1869. Packard, A. S., Jr. — Leucarctia acrcea. Guide to the Study 

 of Insects, p. 286. Caterpillar very injurious at times by 

 its great numbers. 



1875. Snow, F. H. — Idem. Trans. Kan. Acad. Sci., lY., 38. Com- 

 mon in Kansas. Found feeding upon beet leaves. 



1878. French, G. H.— Idem. 7th Pep. St. Ent. 111., p. 79, 183. 

 P. 79, widely distributed. Eats freely tender leaves of 

 garden vegetables, field grains, etc. Description of larva 

 and moth. Natural history. Eemedy ; bursi btubble. P. 183, 

 specific description of moth and larva. Food plants ; cul- 

 tivated plants, weeds, and grasses. Two broods. Checked 

 by parasites. Hand-picking when numerous. 



1881. CoQuiLLET, D. W.— Idem. 10th Rep. St. Ent. 111., p. 170. 

 Specific description of larva. Feeds on rag-weed, June to 

 October. 



5. The Yellow Bear. 



{Spilosoma vlrginica, Fab.) 



1852. Harris, T. W. — Arctica vlrginica. Insects Injurious to Vege- 

 tation, p. 349. Feeds on leaves of Indian corn, grasses, and 

 herbaceous plants generally. Description of moth and larva. 

 Larva — June to October. Moth emerges May and June. 

 Hand-picking suggested. 



1857. Fitch, Asa. — Spilosoma virginica. Third Rep. Ins. N. Y., p. 

 82, No. 125. Brief description of moth, larva, and pupa. 

 Food plants. 



