54 



SUMMAKY. 



Cowpeas can be kept free from ^veevils if maintained at a tempera- 

 ture of from.32° to 34° F. 



The A'itality of the seed is in no way injured by the cold-storage 

 treatment. 



Cowpeas can be carried through the summer in cold storage at a 

 cost ranging from 15 to 25 cents per bushel for the season. 



It is not necessary that the seed be planted soon after it is taken 

 from cold storage and subjected to atmospheric temperatures; for 

 this is not followed by a more.rapid deterioration in vitality. 



The storage room should be kept as dry as possible, and the seeds 

 liandled in bags as in. the Avarehouse. 



THE LARGER CANNA LEAF-ROLLER. 



; {Calpodes ethJiiis Cram.) 



By F. H. Chittexdex. 



During the past two years the leaf -rolling caterpillar of Calpodes 

 etlilius Cram, has attracted considerable attention from its ravages 

 in fields of canna in portions of South Carolina and Alabama. 



In September, 1903. ^Ir. H. M. Simons Avrote of its attacking the 

 foliage of the canna plant in the vicinity of Myers. S. C sending 

 specimens in all stages except the Qgg, the first adult issuing Sep- 

 tember 21. 



In Sej^tember, 1904, a similar lot of specimens were received from 

 Mr. L. H. Read, Fruitdale, Ala., who wrote of the difficidty of cap- 

 turing the butterflies, although they were quite jDlentiful among the 

 canna plants. Thousands of the caterpillars were in the fields, and 

 hand-picking was out of the question. All bronze varieties of canna 

 were injured, including eight or ten varieties. Among those most 

 attacked were Mississippi, Mont Blanc. Explorateur. Crampbell, and 

 Italia. A few green varieties were somewhat affected, but as a rule 

 were scarcely touched, obviously owing to their thicker and tougher 

 leaves. The caterpillar was observed at work only at night. 



In 1904, also, the species was observed somewhat abundantly at 

 Baton Eouge. La., by Mr. A. L. Quaintance, and sparingly at Xew 

 Orleans, La., by Mr. E. S. G. Titus. Although only two instances 

 of severe injury are cited, these are doubtless merely representative 

 of many which were not reported. 



This species and its injuries have been known for many years, yet 

 no comprehensive article on it has, to our knowledge, aj^peared in any 

 work on economic entomology, although the insect in its various 

 stages was described in detail by Dr. S. H. Scudder in his Butterflies 



