Pyralidae 



the worm is hatched, it commences spinning a silken tube for its 

 protection, and this tube is enlarged as it increases in size. The 

 worm cuts its channels right through the comb, feeding on the 

 wax, and destroying the young bees on its way. When full- 

 grown, it creeps into a corner of the hive or under some ledge at 

 the bottom, and forms a tough white cocoon of silk mingled 

 with its own black excrement, as shown in Figure 226, b. In due 

 time the moth emerges from this cocoon. 



A worm-infested hive may generally be known by the dis- 

 couraged aspect which the bees present, and by the bottom- 

 board being covered with pieces of bee-bread mixed with the 

 black gunpowder-like excrement of the worm. ... If a hive is 

 very badly infested with the worm, it is better to drive out the 

 bees and secure what honey and wax there may be left than to 

 preserve it as a moth-breeder to infest the apiary. If put into a 

 new hive, the bees may do something; and if they do not, there 

 is no loss, as they would have perished, finally, from the ravages 

 of the worm." 



SUBFAMILY EPIPASCHIIN/E 



This subfamily is represented in our fauna by fourteen genera 

 and about thirty species. The insects may generally be recog- 

 nized and separated from allied forms by the fact that the cell of 

 the fore wing is adorned by tufts of raised scales. We have 

 only space to give an illustration of a single genus and species. 



Genus YUMA Hulst 

 (1) Yuma trabalis Grote, Plate XLVIII, Fig. 14, $. 



Syn. adulatalis Hulst. 



The insect is found in Colorado and Wyoming, and ranges 

 southward into Texas. Almost all of the Epipascbiince found 

 within our territory are native to the West and the Southwest, 

 only a few species being found in the eastern portions of the 

 United States. 



SUBFAMILY PHYCITIN/E 



This is a very extensive group of moths, which have been 

 admirably monographed by the late Mons. E. L. Ragonot of 

 Paris, in the " Memoires sur les Lepidopteres," Vols. VII and 



407 



