956 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxviii. 



dentate; the subterniinal band is a smooth shade only, not visibh^ den- 

 tate. On the hind wings the median shade is more outwardly placed 

 and more dentate, most produced at vein 2; sub- 

 terminal line close to the margin, rather dis- 

 tinctly dentate in the female specimen before 

 me, more clouded in the male. 



Food plant: Polygomim tinctormm . 

 The larva is shown within a swelling" in the 

 FIG. 23.-PYRAT'STA POLY- j^^cm of the food plant, which is cut off, with 



GONI, ADULT. i 1 • i i 



a hole at the top. Head marked with brown, 

 the body colorless wit', rather large pale tubercles. 

 Type.—C'^it. No. 8398, U.S.N.M. 



CHILO SIMPLEX Butler. 

 INE-N0-ZUIMU8HI. 



Food plant: Oryza Katlva. 



The larva is shown within the rice stem. It is pale, with subdorsal 

 and lateral purplish bands, the tubercles small, black centered, obscure. 

 Head brown. 



Family T()RTRICn).F. 



EXARTEMA MORI Matsumura. 



AO-HAMAKI-MUSHI. 



Food plant: Moras alha. 



The larva is shown on the leaves of mulberry. The head is black, 

 shining, the body entirely immaculate, probably green. 



EXARTEMA MORIVORA Matsumura. 

 SHIN-MUSHl. 



Food plant: MoruH alha. 



The larva is shown on the very young leaves of mulberry. Head 

 shining black, cordate; cervical shield large, shining brown-black; 

 tu])erclos small, but decidedly brown-black, the body otherwise pale 

 (green ^). Anal plate dark. The larva is about half the size of the 

 preceding species. 



Professor Matsumura described this species as Sericoris viorivora,'^ 

 but it seems to me more properly referred to Exartema, as the dorsal 

 lobe of hind wing is fully as long as in the preceding species. Lord 

 Walsingham^' calls attention to the presence of the dorsal lobe in a 

 rudimentary state in Olethreutes { — Sericoris)', but this is well 

 developed. 



«Ent. Nachr., XXVI, 1900, p. 195. 



i-Ann. Mag. Nat. Hist. (7), VI, 1900, p. 28. 



