3\,i 



CLOVER HAY-WORM. 



is purple, with u silken lustre. There iire two bright yellow 

 spot;', on the primary wings. The posterior wings are lighter 

 in color llnin the priniiiries. All the wings are margined with 

 orange, which terminates with a glossy yellow fringe. They ex- 

 pand about 2 c m, or .S of an inch. 



In Fig. 14G, 1 and 2 shows 

 the larva* suspended by 

 threads: ''i represents the 

 cocoon: 4 the eluysalis; 5 

 moth with wings spread : 

 niotli at rest; and T larva 

 concealed in a case of silk 

 which it has spun. 



These moths are attracted 

 by lights, and are often seen 

 about our lamps in mid-summer. The eggs are laid on clover. 

 The larvaj work in a silken case, am! so often fairly mat the hay in 

 one great mass. The larva' atti-act attention in summer working 

 upon the hay, but more usually in February ami March, when 

 stacks and mows of clover may bo fairly alive with larvae These 

 often crawl far into the stacks, where they are protected from 

 cold, and so are sometimes said to bear a zero temperature with- 

 out becoming dormant, though the truth is they have had a 

 warm nest. I have seen them drop from a mow suspended by a 

 silken thread, so thousands could be swei)t away by one stroke of 

 a rake. They often leave stack or mow and seek some concealed 

 place in which to })upate. 



It is probably true that leaving clover hay in mow or stack 

 year after y(>ar will promote the rapid increase of these pests. 

 Feeding out all the hay each winter wouid be a wise precaution, 

 or if any hay is to remain over let it be other than clover. 



Of the many other species mentioned at the beginning of this 

 article none are as yet sutliciently important to demand full de- 



