Noctuid* 



Genus PRODENIA Guenee 



A small but widely distributed genus found in all parts of the 

 globe. Illustrations of two of the three species found in our 

 fauna are given. 



(1) Prodenia commelinae Abbot & Smith, Plate XX, Fig. 



36,?. 



This species, which occurs in the Atlantic Subregion, is 

 common in the southern portion of its range. 



(2) Prodenia ornithogalli Guenee, Plate XX, Fig. 35, & . 

 Not as common as the preceding species, but ranging over 



the entire United States. 



Genus LAPHYGMA Guenee 



A small but widely distributed genus, represented in our 

 fauna by but one species. 



(i) Laphygma frugiperda Abbot & Smith, Plate XX, Fig. 

 37, $ . (The Fall Army Worm.) 



Syn. macro, Guen6e ; signifera Walker ; plagiataWalker ; autumnalis Riley. 



This destructive insect, which is found all over the Atlantic 

 States, the Mississippi Valley, and thence southward through 



f 



FIG. 97. Laphygma frugiperda. FIG. 98. Laphygma frugiperda. 



a. full grown larva; 6. head, mag- a . typical form of moth ; b. c. vari- 



nified; c segment of body, viewed .. t \t+~- p;i^r ^ 



from above; d. viewed from side, eties> (After *u*7-> 

 enlarged. (After Riley.) 



Central and South America, feeds in its larval state upon a great 

 variety of succulent plants, showing, however, a decided prefer- 



174 



